Compaq StorageWorks 64 FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av
Compaq StorageWorks 64 - SAN Director Switch Manual
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- Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 1
Edition (June 2003) Part Number: AA-RS2DC-TE This guide introduces HP Fibre Channel switching products, storage area networks (SANs), and Fibre Channel technologies. It describes HP StorageWorks directors and edge switches, and High Availability Fabric Manager (HAFM) application. It also describes - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 2
are set forth in the express limited warranty statements for such products. Nothing herein should be construed as constituting an additional warranty. Printed in the U.S.A. SAN High Availability Planning Guide Third Edition (June 2003) Part Number: AA-RS2DC-TE - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 3
Performance 19 Director 2/64 21 Director 2/140 23 Edge Switches 25 Edge Switch Performance 25 Edge Switch 2/16 26 Edge Switch 2/24 28 Edge Switch 2/32 30 Product Features 32 Connectivity Features 32 Security Features 33 Serviceability Features 34 SAN High Availability Planning Guide 3 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 4
45 Product Software 47 Management Services Application 47 Graphical User Interface 48 Loop Operation 60 Shared Mode Versus Switched Mode 60 Public Versus Private Devices SAN to a Switched Fabric 73 Server Consolidation 76 Tape Device Consolidation 77 Planning for Multi-Switch Fabric Support - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 5
Fabric Scalability 107 Obtaining Professional Services 107 Fabric Topology Design Switch Management 109 Port Numbering Versus Port Addressing 110 Management Limitations 111 Protocol Intermix Recommendations 112 Multiple Data Optical Transceivers 117 Data Transmission Distance 118 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 6
Switch Connectors 121 Routing Fiber-Optic Cables 121 HAFM Server, LAN, and Remote Access Support Access Control 136 Obtaining Professional Services 137 Optional Features 138 Inband End Devices 152 Task 4: Plan Console Management Support 153 Task 5: Plan Ethernet Access 154 Task 6: Plan Network - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 7
Multi-Switch Fabric (Optional 165 Task 16: Plan Zone Sets for Multiple Products (Optional 166 Index 167 Figures 1 Rack-mount HP products 17 2 Director 2/64 (front view 21 3 Director 2/64 61 22 Switched mode operation 62 23 Public device connectivity 63 SAN High Availability Planning Guide 7 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 8
64 25 Public loop connectivity 65 26 Private loop connectivity 66 27 Shared Mode operation and logical equivalent 67 28 20-Device private arbitrated loop 68 29 Switched mode operation and logical equivalent 70 30 Switched 5 Operational Setup Tasks 149 8 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 9
of one or more of the following Hewlett-Packard (HP) products: About this Guide ■ HP StorageWorks Director 2/64. ■ HP StorageWorks Director 2/140. ■ HP StorageWorks Edge Switch 2/16. ■ HP StorageWorks Edge Switch 2/24. ■ HP StorageWorks Edge Switch 2/32. ■ High Availability fabric Manager (HAFM - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 10
About this Guide Overview This section covers the following topics: ■ Intended Audience ■ latest information, documentation, and firmware releases, please visit the HP StorageWorks website: http://h18006.www1.hp.com/storage/saninfrastructure.html For information about Fibre Channel standards, - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 11
About this Guide Conventions Conventions consist of the following: ■ Document Conventions ■ Text Symbols ■ Equipment Symbols monospace font unless they are case sensitive Blue, underlined sans serif font text: http://www.hp.com SAN High Availability Planning Guide 11 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 12
failure to follow directions could result in damage to equipment or data. Note: Text set off in this manner presents commentary, of electrical shock hazards. Enclosed area contains no operator serviceable parts. WARNING: To reduce the risk of personal injury 12 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 13
to the equipment, observe local occupational health and safety requirements and guidelines for manually handling material. Rack Stability Rack stability protects personnel and equipment. WARNING: To more than one rack component is extended for any reason. SAN High Availability Planning Guide 13 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 14
still have a question after reading this guide, contact an HP authorized service provider or access our website: http://www.hp.com. HP Technical Support Telephone numbers for worldwide technical support are listed on the following HP website: http://www.hp.com/support/. From this website, select the - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 15
per year). HP offers the 64-port StorageWorks Director 2/64 and 140-port StorageWorks Director 2/140. The director implements Fibre Channel technology that provides high-performance scalable bandwidth at 2 gigabits per second (Gbps), highly available operation, redundant switched data paths, long - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 16
, or other peripherals), and ultimately be incorporated into an enterprise SAN environment. Directors and switches are managed and controlled through a High Availability Fabric Manager (HAFM) server, available from HP with the HAFM, Director 2/64 Product Manager, Director 2/140 Product Manager, Edge - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 17
Introduction to HP Fibre Channel Products 1 HP Ethernet hub 2 Three Edge Switch 2/16s 3 Three Edge Switch 2/32s 4 Shelf-mount HAFM server (HP Omnibook) 5 Two Director 2/64s Figure 1: Rack-mount HP products SAN High Availability Planning Guide 17 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 18
in a Fibre Channel switched network. Directors also support mainframe and open systems interconnection (OSI) computing environments and provide data transmission and flow control to the product publications or contact your HP marketing representative. 18 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 19
HP Fibre Channel Products Director Performance Directors provide the following general performance features: ■ High bandwidth - Each port provides full-duplex serial data and a director bit error rate (BER) less than one bit error per trillion (1012) bits. SAN High Availability Planning Guide 19 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 20
arbitrated loop devices, such devices can communicate with directors through loop switches supplied by HP. ■ Multiple service class support - The Fibre Channel signaling protocol provides several classes of transmission service that support framing protocol and flow control between ports. Directors - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 21
HP Fibre Channel Products Director 2/64 The Director 2/64 is a second-generation, enterprise-class switch that provides switched fabric connectivity for to up to 64 CTP2) cards (UPM) cards 3 Redundant power supplies Figure 2: Director 2/64 (front view) SAN High Availability Planning Guide 21 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 22
HP Fibre Channel Products Figure 3 illustrates the rear of the director. 1 Redundant fan modules 3 Redundant serial crossbar 2 Power module assembly with AC (SBAR) assemblies power switch Figure 3: Director 2/64 to configure director network addresses. 22 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 23
for transferring data over single-mode fiber-optic cable. Fiber-optic cables attach to director port transceivers with duplex LC connectors. 1 Front bezel 2 Power and system error LEDs 3 UPM cards (32) 4 CTP cards Figure 4: Director 2/140 (front view) SAN High Availability Planning Guide 23 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 24
Introduction to HP Fibre Channel Products Figure 5 illustrates the rear of the director. 1 Fan modules 2 UPM cards (3) 3 Maintenance port 4 SBAR maintenance personnel, operations personnel can use the port to configure director network addresses. 24 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 25
with an availability factor of 99.999%, edge switches offer the same general performance features as directors, including high bandwidth, low latency, local control, low communication overhead, multiple topology support, and multiple service class support. SAN High Availability Planning Guide 25 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 26
Introduction to HP Fibre Channel Products Edge Switch 2/16 The Edge Switch 2/16 provides 2.125 Gbps fabric connectivity for to up to 16 Fibre Channel devices. Figure 6 illustrates the front of the switch. Shortwave laser transceivers are available for transferring data over multimode fiber-optic - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 27
Introduction to HP Fibre Channel Products Figure 7 illustrates the rear of the switch. 1 Cooling fans (6) 2 Power supplies (2) 3 Power switches on power supplies (2) 4 RS-232 maintenance port Figure 7: Edge Switch 2/16 (rear view) SAN High Availability Planning Guide 27 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 28
Introduction to HP Fibre Channel Products Edge Switch 2/24 The Edge Switch 2/24 provides 2.125 Gbps fabric connectivity for to up to 24 Fibre Channel devices. Figure 8 illustrates the front of the switch. Shortwave laser transceivers are available for transferring data over multimode fiber-optic - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 29
Introduction to HP Fibre Channel Products Figure 9 illustrates the rear of the switch. 1 Power supplies with internal cooling fans 2 Maintenance Port Figure 9: Edge Switch 2/24 (rear view) SAN High Availability Planning Guide 29 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 30
Introduction to HP Fibre Channel Products Edge Switch 2/32 The Edge Switch 2/32 provides 2.125 Gbps fabric connectivity for to up to 32 Fibre Channel devices. Figure 10 illustrates the front of the switch. Shortwave laser transceivers are available for transferring data over multimode fiber-optic - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 31
of the switch. The FRUs on the rear panel include two power supplies and four individual cooling fan FRUs. 1 Cooling fans (4) 2 Power supplies (2) 3 Power switches on power supplies (2) 4 RS-232 maintenance port Figure 11: Edge Switch 2/32 (rear view) SAN High Availability Planning Guide 31 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 32
described in this chapter, HP-managed directors and switches also provide a variety of: ■ Connectivity features. ■ Security features. ■ Serviceability features. Connectivity Features Directors, switches, and the associated HAFM and Product Manager applications support the following Fibre Channel - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 33
provide director or switch access control to increase network security, differentiate between operating systems, and prevent data loss or corruption. Zoning can be implemented in conjunction with server-level access control and storage device access control. SAN High Availability Planning Guide 33 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 34
. ■ An internal modem in the HAFM server for HP call-home support. Note: For directors and switches installed in some legacy environments, call-home notification requires installation of HP Proactive Service software. This service is offered at no additional charge for subsystems covered under an on - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 35
(service required) LED on the FRU flashes. When unit beaconing is enabled, the system error indicator on the product flashes. Beaconing does not affect port, FRU, director, or switch operation. ■ Data collection through the associated Product Manager application to help isolate system problems. The - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 36
Introduction to HP Fibre Channel Products 36 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 37
management of Hewlett-Packard (HP) directors and edge switches. The chapter specifically describes: ■ Out-of-band and inband product management. ■ The High Availability Fabric Manager (HAFM) server, HAFM server specifications, Ethernet hub, and optional workstation support. ■ The firmware, backup - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 38
to HP products is 64 Product Manager, Edge Switch 2/16 Product Manager, and Edge Switch switch. This interface supports configuration, statistics monitoring, and basic operation of the product, but does not offer supports Telnet client software can be used. 38 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 39
64. The customer intranet could be an HP Ethernet hub providing device connectivity. 2 1 CCuussttoommeerr IInnttrraanneett ((1100//110000 MMbbppss)) StorageWorks SAN ) device attached to a director or switch port, and communicates using Fibre Channel common SAN High Availability Planning Guide 39 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 40
900 Parallel Enterprise server attached to a director or switch port, and communicates through a FICON channel. 64. 1 S/390 or zSeries 900 parallel Enterprise server 2 Host-attached console 3 Director 2/64 4 OSI server Figure 13: Inband product management 40 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 41
. However, note that the maximum number of switches per storage area network (SAN) fabric is different. For the latest supported topology limits, contact your local HP sales representative or refer to http://h18006.ww1.hp.com/products/storageworks/san/documentation.html The server is mounted in - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 42
or service packs) may interfere with normal operation. United States English is the only language supported by user workstations. An optional Ethernet adapter card (not supplied by HP) can be installed in the personal computer memory card international ). 42 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 43
switches can be connected through a 10/100 Base-T Ethernet hub. Figure 15 illustrates the 12-port hub. The hub can be ordered from HP and is installed at the top front of the equipment rack. Power Fault ProCurve HP MB available on the internal hard drive. SAN High Availability Planning Guide 43 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 44
2/16 and Edge Switch 2/32 fiber-optic ports. ■ Fibre Channel Protocol Services - This function provides the Fibre Channel transport logic that allows upper layer protocols used by fabric services to communicate with devices attached to fiber-optic ports. 44 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 45
line monitor for engineering fault isolation, a serial maintenance port driver, and other support for the product operating system. ■ Hardware Services (Edge Switch 2/16 and Edge Switch 2/32 Only) - This function supports the application-specific integrated circuit (ASIC) embedded on the CTP card - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 46
logs). - Zoning library (all zone sets and zone definitions). - Firmware library. - Call-home settings (phone numbers and dialing options). - Configuration data for each managed product (stored on the HAFM server and in NVRAM on each director or switch). 46 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 47
For directors and switches installed in some legacy environments, call-home notification requires installation of HP Proactive Service software. This service is offered at no additional charge for subsystems covered under an on-site warranty or on-site storage hardware support contract. To register - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 48
HP StorageWorks HA-Fabric Manager User Guide. The application operates locally on the HAFM server or through a network connection from a remote user workstation. The application operates independently from the director or switch (data paths) between end devices attached to a multi-switch fabric - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 49
its configured name or network (IP) address. Additional information associated with each icon includes: ■ Data transmission rate - This rate displays in the upper left corner as 2 Gbps with a yellow number of ports) displays at the left side of the icon. SAN High Availability Planning Guide 49 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 50
-clicking (selecting) a product icon or right-clicking a product icon and selecting from pop-up menu options, a user opens the Product Manager application for a director or switch. Refer to "Product Manager Application" on page 53 for additional information. 50 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 51
The left panel displays an expandable Fabrics tree that lists managed fabrics, director, and switch elements in each fabric, and nodes (Fibre Channel devices) connected to fabric elements. right of the colored icons. Figure 17: Fabrics View - Topology tab SAN High Availability Planning Guide 51 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 52
). Zones and zone members of the set display below the zone set name in a scrollable tree structure. Figure 18: Fabrics View - Zone Set tab 52 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 53
2/64, Director 2/140, Edge Switch 2/16, Edge Switch 2/24, or Edge Switch 2/32 Status table displays at the top of the window, and a graphical representation of the hardware (front and rear) displays in the center of the window. Figure 19: Hardware View SAN High Availability Planning Guide 53 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 54
switch through an EWS interface. The interface provides a GUI similar to the Product Manager application, and supports product configuration, statistics monitoring, and basic operation. The EWS interface does not replace nor offer and operator). 54 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 55
is the View panel (Figure 20 on page 55). The View panel for the Director 2/64 is shown as an example. Figure 20: View Panel (Embedded Web Server interface) Task selection tabs selection tabs allow users to perform director or switch-specific tasks. SAN High Availability Planning Guide 55 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 56
online user documentation that supports the EWS interface. Command Line Interface The CLI provides a director and switch management alternative to to guide users through tasks. For additional information, refer to the HP StorageWorks CLI Reference Guide for Edge Switches and Directors. 56 SAN High - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 57
(HP) switching products into Fibre Channel SAN topologies . This chapter specifically describes: ■ Fibre Channel topologies, including point-to-point, arbitrated loop, and multi-switch ■ Planning for multi-switch fabric support. For planning purposes, a SAN is typically one or more - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 58
switches (offered by HP but not described in this publication) to connect multiple device node loop ports (NL_Ports) in an FC-AL or hub configuration without benefit of a multiswitch fabric. The following modes of operation are supported: - Switched page 73. 58 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 59
; and, based on the destination N_Port address, route the data through the fabric (and possibly through multiple switch elements) to the destination device. For additional information, refer to "Planning for Multi-Switch Fabric Support" page 78, "Planning a Fibre Channel Fabric Topology" on page - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 60
connected to fabric-attached server S1, also communicating at 1.0625 Gbps (through the B_Port). The seven remaining H_Ports are inactive. Note: A Director 2/64 is shown in Figure 21 and other figures as an example. Any HP director or edge switch can be used. 60 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 61
all looplets or connected device pairs operate half duplex or full duplex at 1.0625 Gbps. Switched mode operation is illustrated in Figure 22. Part (A) shows four device transmission pairs using all server S5. All four transmissions operate at 1.0625 Gbps. SAN High Availability Planning Guide 61 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 62
Channel Topologies Figure 22: Switched mode operation Public Versus Private Devices Arbitrated loop switches support connection of public and private public device. Public devices communicate with fabric-attached devices through the switch's B_Port connection to a director. As shown in Figure 23, - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 63
not support any other form of Fibre Channel address conversion (spoofing) that would allow private device-to-fabric device communication. Note: A private device can connect to the switch (loop) while a public device is connected and using the B_Port to communicate with a fabric device. SAN High - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 64
communication may cause problems. For example, it is often critical to separate servers and storage devices with different operating systems, because accidental transfer of information from one to another can delete or corrupt data. Plan to implement security provisions for the switch, such as - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 65
switches support operation of public and private loops as follows: ■ Public loop - A public loop is connected to a switched fabric (through the switch B_Port) and the switch by the switch operating mode (shared or switched). Public connected to a switched fabric and the switch's embedded E_Port and - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 66
SANs. This topology is well suited to small and mid-sized configurations where modest connectivity levels and high data transmission speeds are required. The topology also supports low-cost switching until communication between the first connection pair ends. 66 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 67
switch H_Ports. Through the use of cascaded unmanaged hubs, the Fibre Channel architectural limit of 125 FC-AL devices can attach to the switch. For example, Figure 28 shows a private loop composed of a loop switch, 20 FC-AL devices, and two unmanaged hubs. SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 68
includes H_Ports on all three hubs and NL_Ports on the remaining 18 devices. Loop Switch Loop Switch H_Ports Hub H_Ports Hub S1 D1 Figure 28: 20-Device private arbitrated loop Although connection ), devices, and cabling increases the round-trip time. 68 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 69
, and is defined as the request rate divided by the service rate. The request rate is the rate at which devices switch to avoid adversely impacting loop performance. In particular, avoid attaching an excess number of servers or high-bandwidth storage devices. SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 70
devices total). Each device pair forms a looplet that communicates through a hub and connecting H_Port, and because of opportunistic bandwidth sharing, the looplets effectively increase the switch bandwidth to 8.5 Gbps. 70 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 71
constructed that supports the architectural 125-device limit. Switched mode operation provides the ability to design a complex and high-performance SAN for the department across several looplets to avoid performance problems associated with a single looplet. SAN High Availability Planning Guide 71 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 72
■ Consider the data traffic capacity of the department or workgroup (normal and peak load) as part of the switch planning and installation satisfy nondisruptive growth requirements or eventual connection to a Fibre Channel switched fabric. Capacity planning is a dynamic activity that must be - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 73
of business applications and data. Directors, edge switches, and loop switches allow fabric-attached and FC-AL devices to be partitioned into restricted-access zones to limit unauthorized access. Refer to "Name Server Zoning" on page 132 for information. SAN High Availability Planning Guide 73 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 74
impact on B_Port operation. However, because all switch-attached FC-AL devices must arbitrate for access to the embedded FL_Port, loop performance issues (loop round-trip time, number of loop tenancies, service rate, and loop utilization) must be evaluated. 74 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 75
connection to a director (ISL) transmits multiplexed burst data from all four devices, for which the summed bandwidths equal the 1.0625 Gbps capacity of the link. Therefore, connection of additional devices to the switch adversely impacts B_Port performance. SAN High Availability Planning Guide 75 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 76
another server to the switch would exceed the B_Port capability and adversely impact director-to-switch link performance. Other devices (such as tape drives) should not be connected to a switch used for server consolidation. Figure 33: Server consolidation 76 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 77
tape drive to the switch would exceed the B_Port capability and adversely impact director-to-switch link performance. Other devices (such as servers) should not be connected to a switch used for tape drive consolidation. Figure 34: Tape drive consolidation SAN High Availability Planning Guide 77 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 78
topology that supports multiple, full- bandwidth data transmission paths between servers and devices. Figure 35 illustrates a simple multi-switch fabric. In the figure, the three fabric elements are Director 2/64s. Figure 35: Example multi-switch fabric 78 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 79
limit of interconnected directors or switches supported in a single fabric is 31. For additional information, refer to "Large Fabric Design Implications" on page 107. For the latest supported topology limits, refer to http://h18000.www1.hp.com/products/storageworks/san/documentation.html or contact - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 80
a single path through the fabric is seven. The maximum hop count supported by a fabric is based on current design rules. For information, refer to http://h18000.www1.hp.com/products/storageworks/san/documentation.html or contact your local HP sales representative. Note: The hop count is equal to the - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 81
switches in a fabric. Increasing the number of ISLs between elements increases the corresponding total ISL bandwidth, but decreases the number of port connections available to devices. Table 2 illustrates ISL transfer rate versus port availability for a fabric consisting of two Director 2/64s. SAN - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 82
4.2500 Gbps 5.3125 Gbps 6.3750 Gbps 7.4375 Gbps 8.5000 Gbps ISL Data Transfer Rate (at 2.125 Gbps) 2.1250 Gbps 4.2500 Gbps 6.3750 When balancing a load across multiple ISLs, a director or switch attempts to avoid assigning multiple ports attached to a device to SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 83
data transfer operations. For example, in Figure 35 on page 78, suppose device D7 is a server and device D9 is a storage unit and both devices participate in a critical nightly backup operation. HP and edge switches are switch with the lowest WWN becomes the principal switch the principal switch. - If - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 84
bit Fibre Channel addresses that uniquely identify source and destination ports in a fabric. Each fabric element is configured through the Product Manager application with a preferred domain ID. When a director or switch director or switch. If the problem, HP recommends that all directors and switches - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 85
supporting OEM publications for the product, or contact HP. ■ Path selection - Directors and switches are not manually configured with data is restored, directors and switches detect the original minimum-hop path and route Fibre Channel frames over that path. SAN High Availability Planning Guide 85 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 86
has multiple F_Port connections to a director or switch, the switch assigns the data transfer load across multiple ISLs to maximize device traverse the old (longer) path. This can cause problems because many Fibre Channel devices cannot receive frames in the 86 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 87
-switch fabric, services provided by each director or switch (such as name service, registered state change notifications [RSCNs], and zoning) are provided on a fabric-wide basis. For example, if a fabric-attached device queries a director or switch name server to locate all devices that support - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 88
any change to the active zone set is applied to all directors and switches. To ensure zoning is consistent across a fabric, the following rules are segment and the fabrics remain independent. Zone sets for two directors or switches are compatible (the fabrics can join) only if the zone names for - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 89
variety of applications, are extensively tested by HP, and are deployed in several customer environments fabric consists of a linear string of directors or switches connected by one or more ISLs. Each fabric element design has low reliability because each director, switch, or ISL is a single point - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 90
increases the fabric design reliability. Cascaded fabrics are well suited for applications where data access is local, but not for applications that require any-to-any Class F traffic) or low-bandwidth SAN applications. For additional information, refer to "Device Locality" on page 100. - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 91
switches problems inherent to cascaded fabrics. Ring fabrics also have increased reliability because traffic can route around a single ISL, director, or switch data access is local, but not for applications that require any-to-any connectivity. In addition, ring fabrics are useful when connecting SANs - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 92
mesh. In a full-mesh topology, every director or switch is directly connected to all directors and switches in the fabric. The maximum hop count between fabric- path. Mesh fabrics also form effective backbones to which other SAN islands can be connected. Traffic patterns through the fabric should - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 93
the fabric is not expected to grow beyond four or five switches. The cost of ISLs becomes prohibitive for larger mesh fabrics. In SAN backbone for which traffic patterns between SAN islands connected to the backbone are well known. If heavy traffic is expected between a pair of switches, the switches - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 94
switches acting as core elements that are dedicated to connecting other directors and switches and fourteen edge directors and switches (2-by-14 topology). Tier 10 8 6 4 2 0 PWR ERR Edge Switches Core Director Tier 1 Device TM TM 10/100 Switches Interswitch Link Fabric Connection Tier 2 Devices Figure 39: - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 95
topology with four core directors and twelve edge directors and switches (4-by-12 topology). Tier 3 Devices TM 10/100 Edge fabric A core-to-edge topology offers any-to-any device connectivity, and data integrity, connectivity, and scalability requirements. SAN High Availability Planning Guide 95 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 96
switches are not connected. In a complex core topology, as shown in Figure 40 on page 95, core switches switch core director or switch. Tier 1 devices connects to an edge switch and Fibre Channel traffic from the switch. ■ Tier 3 - A Tier 3 device connects to an edge switch switch data locality within - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 97
design must: ■ Solve the customer's business problem and provide the required level of performance. ■ limits, including the maximum directors and switches per fabric, maximum number of ISLs per director or switch, and maximum hops between devices. For SAN High Availability Planning Guide 97 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 98
HP directors and switches are designed with non-blocking architecture; therefore, any two switch ports can communicate at the full Fibre Channel bandwidth of 2.125 Gbps without impact to other switch ports. Because most SAN essential to SAN, fabric, of application I/O is data block size, which - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 99
application I/O (in Gbps) and fabric performance problems due to ISL connectivity, refer to "ISL data frames from multiple devices, thus giving fractional bandwidth to the affected devices. Although all devices are serviced 10 15 20 25 Time (Sec) SAN High Availability Planning Guide 99 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 100
problems congestion problem to support the bandwidth support a 2.125 Gbps bandwidth traffic load between fabric elements. A 2.125 Gbps ISL is sufficient to support the bandwidth of both NT servers operating at peak load. ■ Deliberately employ ISL oversubscription - Real-world SANs SAN switch - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 101
data processing, or medical 3D imaging. When designing a core-to-edge fabric, servers and storage devices that support are why multiple hosts can be serviced by a single storage port. supported is 12 to 1. Figure 43 illustrates a fan-out ratio of 10 to 1. SAN High Availability Planning Guide 101 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 102
ISLs, leading to fabric congestion. ■ Device output in IOPS does not result in a connectivity scheme that exceeds fan-out ratios, leading to port congestion. 102 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 103
MBps), the server and associated storage are directly attached to the core director as Tier 1 devices. No ISLs are used for server-to-storage connectivity. SAN High Availability Planning Guide 103 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 104
capabilities of 20 MBps and 1,500 IOPS are fabric-attached through a 16-port edge switch. Bandwidth use is light to medium but critical, so the servers are connected to the require highly available connectivity to support applications such as disk mirroring, SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 105
topology (Figure 36 on page 90) illustrates this design. ■ Resilient single fabric - Directors and switches are connected to form a single fabric, but no single point of failure can cause the fabric analyze for performance, to fault isolate, and to maintain. SAN High Availability Planning Guide 105 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 106
symmetrical, each containing one core director and four edge switches. All servers and storage devices are connected to both Redundant fabrics Some dual-attached devices support active-active paths, while others support only active-passive paths. Active-active SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 107
with a newer or higher port count switch, it is often valuable to use the existing switch elsewhere in the fabric (at the edge). Obtaining Professional Services Planning and implementing a multi-switch fabric can be a complex and difficult task. HP recommends that you obtain planning assistance from - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 108
problem is not directly related to the large number of fabric elements, but to the large number of ISLs associated with the elements. Fabric build concerns currently limit the combined number of directors and switches to control device communication. 108 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 109
FICON management style. This setting only affects the management style used to manage the director or switch; it does not affect Fibre Channel port operation. FCP devices can communicate with each other hardware enforced in the routing tables of each port. SAN High Availability Planning Guide 109 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 110
with device N_Ports that attach to director or switch F_Ports. Zones are configured by: ■ The 8-byte (64-digit) WWN assigned to the host bus adapter bold (hexadecimal 04 through 43). Figure 46: Director 2/64 port numbers and logical port addresses 110 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 111
Consequently, when a director or switch is set to FICON management style, E_Port connections (ISLs) are not allowed with another edge switch. The director or switch reports an attempted E_Port connection as invalid and prevents the port from coming online. SAN High Availability Planning Guide 111 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 112
does affect distribution of registered state change notification (RSCN) service requests to FICON devices. If a FICON device is not proper state change notification. Regardless of the director or switch FICON management style, FCP devices must be zoned in SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 113
(the servers are mutually exclusive). When the FMS feature is enabled, the director or switch is automatically set to FICON management style only. When the OSMS feature is enabled, the director or switch can be set to Open Systems or FICON management style. SAN High Availability Planning Guide 113 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 114
Transmission Speeds in a Single Fabric The Director 2/64, Edge Switch 2/16, and Edge Switch 2/32 support auto-sensing of 1.0625 and 2.125 Gbps device connections. The introduction of a higher data transmission speed to the SAN design provides several benefits and alternatives: ■ High-speed device - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 115
Manager (HAFM) server, Ethernet local area network (LAN), and remote access support. ■ Inband management access (optional). ■ Security provisions for directors or switches, the HAFM server, and customer data paths through directors or switches (zoning). SAN High Availability Planning Guide 115 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 116
switch needs of the SAN configuration. The number WARNING: Director and switch non-open fiber control connectors with characteristics specified by HP. Use of other connectors directors and switches are described as follows: ■ Director 2/64 - The director of 16 UPM cards (64 ports total). UPM cards - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 117
(64 ports Switch 2/24 - The switch switch-to-device or switch-to-switch distance of up to 150 meters at a 2.125 Gbps data transmission speed. A 62.5 micron cable is only supported for the use of existing cable plants. HP switch-to-device or switch-to-switch distances of 10, 20, or 35 kilometers. HP - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 118
the supporting documentation delivered with the product for information. ■ Existing cable restrictions - The enterprise may contain only one type of fiber-optic cable (multimode or single-mode), and the customer may be required to use the existing cables. 118 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 119
repeaters or dense wavelength division multiplexing (DWDM) equipment, directors and edge switches support Fibre Channel data transmission distances of up to 100 km at 1 Gbps, or 50 cables rerouted and reconnected while the director or switch is operational. SAN High Availability Planning Guide 119 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 120
switches. ■ Optical connectors for Director 2/64, Director 2/140, Edge Switch 2/16, Switch 2/24, and Edge Switch switch ports to servers, devices, distribution panels, or other elements in a multi-switch fabric. Depending on the attached device, director port, or switch jacket. HP supplies cables - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 121
2/64, Director 2/140, Edge Switch 2/16, Edge Switch 2/24, and Edge Switch 2/32 service clearance, limited rack movement, and inadvertent cable pulls. ■ Cabling distance to servers, storage devices, and other fabric elements (for multi-switch fabric support). SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 122
switch fabric is developed. The director or switch Support Out-of-band (non-Fibre Channel) console access to directors and switches or switch front switch through a LAN segment. ■ Through a PC with a direct serial connection to the director or switch supports up to 48 HP directors or switches switch - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 123
Service software. This service is offered at no additional charge for subsystems covered under an on-site warranty or on-site storage hardware support contract. To register or order Proactive Service software, contact your HP customer service representative. SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 124
HP-supplied equipment rack in accordance with customer specifications. Consider the following Ethernet connectivity issues when: ■ Installing additional rack-mount products - When installing an additional director or switch slack for service clearance, limited SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 125
is shown in Figure 48 on page 126. Director 2/64s are used as an example. This single Ethernet connection is supported by HP, is Open View-Storage Node Manager (OV-SNM) the HAFM server to managed directors and switches operates at either 10 or 100 Mbps. SAN High Availability Planning Guide 125 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 126
dual Ethernet connection is supported by HP, it is not OV-SNM compatible, requires installation of an additional PCMCIA LAN adapter card (not supplied by HP), and is not the recommended configuration for a typical new HP installation at a customer site. 126 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 127
Physical Planning Considerations Figure 49: Typical network configuration (two Ethernet connections) SAN High Availability Planning Guide 127 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 128
(GUI) accessed through the Internet (locally or remotely) to manage a single director or switch. If the Embedded Web Server interface is to be implemented: ■ Plan for an Internet of managed products, usernames, and passwords are tightly controlled. 128 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 129
features that allow Open Systems or FICON host control of a director or switch. The features are mutually exclusive; only one can be installed at a time party SAN management applications, and minimum OSI server specifications, refer to the HP website. SAN High Availability Planning Guide 129 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 130
device subset 2032OS390G5+. The minimum OS/390 level for a director or switch with the CUP feature is Version 2.1, plus service listed in the preceding PSP bucket for that function. ■ A host publication System Automation for OS/390, Operations (GC28-1550). 130 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 131
restrict unauthorized access to a director, switch, or attached Fibre Channel devices. Access to the director or switch (through the HAFM application, Product application, and perform diagnostics, maintenance functions, firmware loads, and data collection. SAN High Availability Planning Guide 131 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 132
associated passwords. Name Server Zoning Directors and switches support a name server zoning feature that partitions attached 64 with three zones (with four devices per zone). ZONE 1 ZONE 2 ZONE 3 SD-64 Director Figure 50: Product zoning SHR-2281 132 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 133
corrupt data. switch (recommended method). Caution: If zoning is implemented by WWN, removal and replacement of a device HBA or Fibre Channel interface (thereby changing the device WWN) disrupts zone operation and may incorrectly exclude a device from a zone. SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 134
in a multi-switch fabric. Only one zone set can be enabled at one time. Zone members are defined and zones or zone sets are created using the HAFM application. HP products support the following zoning features: ■ zone set are included in the default zone. 134 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 135
service requests - Registered state change notification (RSCN) service requests are transmitted to all N_Ports attached to the director or switch applies to all directors and switches in the fabric. When segmented. The ports cannot transmit data frames between attached switches (Class 2 or 3 traffic), - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 136
switch fabric. ■ Reasons for zone implementation - Determine if zoning is to be implemented for the enterprise. If so, evaluate if the purpose of zoning is to differentiate between operating systems, data director or switch, security measures for SANs should also SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 137
software. Data access is ■ Supports a Services Planning and implementing a multi-switch fabric can be a complex and difficult task. HP recommends that you obtain planning assistance from our professional services organization before implementing a fabric topology. SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 138
-port increments) through purchase of this feature. Note: The Director 2/64 and Director 2/140 do not support the Flexport technology feature. ■ SANtegrity Binding - Purchase and enabling of this feature enhances security in SANs that contain a large and mixed group of fabrics and attached devices - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 139
channel cards installed. ■ Installation of System Automation for Operating System/390 (SA OS/390) for native FICON, Version 1.3 or later, plus service listed in the appropriate preventive service planning (PSP) bucket. The PSP bucket upgrade is HKYSA30. SAN High Availability Planning Guide 139 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 140
a director or switch with the CUP feature is Version 2.1, plus service listed in the instructions, and a feature key that enables the added port capacity through the Product Manager application. SANtegrity Binding SANtegrity Binding is a feature that enhances data security in large and complex SANs - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 141
delay - If a fabric topology changes, directors or switches calculate a new least-cost data transfer path through a fabric, and routing tables immediately implement a warning occurs and the affected director or switch cannot be added to the membership list. SAN High Availability Planning Guide 141 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 142
planning assistance from the HP professional services organization before implementing the SANtegrity Binding feature with director or switch zoning, especially for ISL 2 Director B Server 3 Figure 51: Open Trunking configuration Storage 1 Storage 2 142 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 143
regard to any data rates. A possible scenario is that servers 1 and 2 route high data rate traffic through ISL 1 to storage device 1 (ISL oversubscription) and server 3 routes low data rate traffic through ISL 2 to storage device 2 (ISL undersubscription). SAN High Availability Planning Guide 143 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 144
Physical Planning Considerations 144 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 145
or more Director 2/64s, Director 2/140s, Edge Switch 2/16s, Edge Switch 2/24s, or Edge Switch 2/32s in a storage area network (SAN) configuration. The 4: Plan Console Management Support. ■ Task 5: Plan Ethernet Access. ■ Task 6: Plan Network Addresses. ■ Task 7: Plan SNMP Support (Optional). ■ Task - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 146
switch fabric is to be enabled, proximity of participating fabric elements to each other. ■ Location of at least one analog phone line to aid in installation and serviceability. ■ Availability of Ethernet local area network (LAN) connections and cabling to support SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 147
integrity, while maintaining accessibility to the director or switch. ■ Equipment rack front and rear service clearances, operator clearances, and maintenance access clearances. and assign password levels and user names for director and switch access. SAN High Availability Planning Guide 147 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 148
. Order the equipment rack with one or more HP products. Order Fibre Channel devices and peripherals. Install more than one director or switch, consider separate power circuits for availability. Recommended. Telephone for support personnel. 250 meters (2.125 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 149
LAN with non-HP devices). Directors and switches (if installing on a LAN with non-HP devices). Remote 16 users. Determine if inband management of the director or switch is to be used, and the type (FICON or Open (if installing on a LAN with non-HP devices). HAFM server and products (optional). - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 150
IP addresses. Determine SNMP information required (generic and productspecific). Determine if a multi-switch fabric is to be implemented. Determine if the zone management feature is to be if write permission is required for modifying SNMP variables. 150 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 151
of cable outside the rack to provide slack for service clearance, limited rack movement, and inadvertent cable pulls. WARNING: Director and switch non-open fiber control (non-OFC) laser transceivers equipment rack to prevent cable or connector damage. SAN High Availability Planning Guide 151 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 152
End Devices HP conducts a substantial level of testing to ensure director and switch interoperability with ) is supported. Inband management through the open-systems management server (OSMS) is also supported. ■ When a director or switch is set enabled. 152 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 153
as a local user workstation. - The HAFM server can support up to 48 managed HP products. - Managed directors and switches can be powered off and on without the HAFM server. HBA and appropriate operating system or SAN management application is available. SAN High Availability Planning Guide 153 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 154
. Ensure all access, security, and IP addressing issues are resolved. Note: HP recommends directors, switches, and the HAFM server be installed in a secure physical network domain to optimize security and avoid traffic problems. ■ Install remote user workstations - Plan for access to the LAN segment - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 155
domain name service (DNS) name for the HAFM server and each director and switch. ■ Gateway addresses may need to be configured for directors, switches, and director or switch resets to this address. - Subnet mask is 255.0.0.0. - Gateway address is 0.0.0.0. SAN High Availability Planning Guide 155 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 156
255.0.0.0. - Gateway address is blank. Task 7: Plan SNMP Support (Optional) As an option, network administrators can use the HP to load onto SNMP management workstations. For additional information on SNMP, refer to the HP StorageWorks SNMP Reference Guide for Edge Switches and Directors. 156 SAN - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 157
can configure director and switch e-mail support. The following support considerations are required if the HP recommends this approach. ■ Access to products is possible through the maintenance port. This connection is for use by authorized service SAN High Availability Planning Guide 157 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 158
service representative or network administrator at the HAFM server may require voice technical support through a telephone connection. Task 11: Diagram the Planned Configuration Determine peripheral devices that will connect to each director or switch 159. 158 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 159
on separate directors and switches. HP recommends unique port names be used, particularly within a complex multi-switch fabric. Example port depicts port assignments for a director or switch. The worksheet lists 64 ports, and provides fields to identify . SAN High Availability Planning Guide 159 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 160
Planning Tasks Product Planning Worksheet (Page 1 of 4) Director or Switch Name IP Address Unit Name Port Port Name Location 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 Attached Devices Type Model IP Address Zone 160 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 161
Planning Tasks Product Planning Worksheet (Page 2 of 4) Director or Switch Name IP Address Unit Name Port Port Name Location 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Attached Devices Type Model IP Address Zone SAN High Availability Planning Guide 161 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 162
Planning Tasks Product Planning Worksheet (Page 3 of 4) Director or Switch Name IP Address Unit Name Port Port Name Location 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Attached Devices Type Model IP Address Zone 162 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 163
Planning Tasks Product Planning Worksheet (Page 4 of 4) Director or Switch Name IP Address Unit Name Port Port Name Location 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Attached Devices Type Model IP Address Zone SAN High Availability Planning Guide 163 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 164
equipment rack. Directors and switches in the rack operate at 50 to 60 Hertz (Hz) and 100 to 240 volts alternating current (VAC), and require a minimum dedicated 5-ampere service. If two power sources accidentally unplugging the product or equipment rack. 164 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 165
director or switch and not through the fabric. Planning and implementing a multi-switch fabric is a complex and difficult task. HP recommends you obtain planning assistance from our professional services organization before implementing a fabric topology. SAN High Availability Planning Guide 165 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 166
systems, data sets, user zone set names can be up to 64 characters in length. - The first switch fabrics. HP recommends you obtain planning assistance from our professional services organization before implementing a director or switch zoning feature. 166 SAN High Availability Planning Guide - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 167
audience 10 authorized reseller, HP 14 B backup HAFM data directory 46 NVRAM configuration 45 balancing data loads 82 bandwidth director 19 requirements 81 beaconing 35 SAN High Availability Planning Guide Index Index index binding fabric 140 switch 141 broadcast support 32 C capacity planning 72 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 168
access type 98 data collection 35 default director network addresses 155 HAFM server network addresses 156 definition arbitrated loop 15 director 2/64 15 FC-AL switch 16 description fabric switch 25 software 47 design considerations fabric topology 107 device looplet 70 Tier 1 96 Tier 2 96 Tier 3 96 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 169
96 fabric switch description 25 Binding 140 features connectivity 32 product 32 security 33 serviceability 34 Fibre Channel topologies 58 Fibre Connection management 80 HP authorized reseller 14 storage website 14 technical support 14 hybrid topology 58 SAN High Availability Planning Guide 169 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 170
35 Fibre Alliance MIB 35 management services application, functions 47 maximum hop count 80 number of ISLs 79 memory HAFM server 42 mesh fabric topology 92 mode shared 60, 67 switched 61, 70 modem (external) 42 multi-cast support 32 multiswitch fabric support planning 78 multiswitch fabric topology - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 171
165 plan network addresses 155 plan phone connections 158 plan SNMP support 156 plan zone sets 166 prepare a site plan 146 planning 59 point-to-point typology, overview 58 principal switch selection 83 private arbitrated loop topology 66 private device 63 SAN High Availability Planning Guide 171 - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 172
33 SANtegrity Binding 140 user restrictions 33 workstation restrictions 33 zoning 33 server consolidation 76 service class support, director 20 172 service rate 69 serviceability features 34 beaconing 35 data collection 35 diagnostic software 34 director-specific MIB 35 Fabric Element MIB 35 Fibre - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 173
technical support, HP 14 ring fabric 91 types of 58 topology support director 20 Topology tab 51 topology, planning 59 U user workstation, planning support 153 utilization, loop 69 W warning rack server, introduction 38 web server interface 54 websites, HP storage 14 WWN, assignment 84 Z Zip drive - Compaq StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Av - Page 174
Index 174 SAN High Availability Planning Guide
planning
guide
hp
StorageWorks
SAN high availability
Product Version:
FW V05.01.00-24/HAFM SW V07.01.00-09
Third Edition (June 2003)
Part Number:
AA-RS2DC-TE
This guide introduces HP Fibre Channel switching products, storage area networks (SANs), and
Fibre Channel technologies. It describes HP StorageWorks directors and edge switches, and
High Availability Fabric Manager (HAFM)
application. It also describes the firmware, backup
and restore features, and the graphical user interface delivered with the directors and edge
switches, and
HAFM
application. Finally, it describes planning for Fibre Channel topologies,
physical planning considerations, and configuration planning tasks to ensure taking advantage
of director and switch features.