HP StorageWorks 64 FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa
HP StorageWorks 64 - SAN Director Switch Manual
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- HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 1
: 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 4
Firmware 44 Backup and Restore Features 45 Product Software 47 Management Services 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 5
Ring Fabric 91 Mesh Fabric 92 Core-to-Edge Fabric 94 Fabric Island 96 Planning 105 Fabric Scalability 107 Obtaining Professional Services 107 Fabric Topology Design Considerations Single Fabric 108 Director or Switch Management 109 Port Numbering Versus SAN High Availability Planning Guide 5 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 6
Remote Access Support 122 HAFM Server 122 HAFM Server Connectivity 123 Connectivity Planning Considerations 124 Remote User Workstations 124 SNMP Management Workstations 128 Web Browser Access 128 Inband Management Access (Optional 129 Security Provisions 131 Password Protection 131 Name - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 7
2/64 (rear view 22 4 Director 2/140 (front view 23 5 Director 2/140 (rear view 24 6 Edge Switch 2/16 (front view 26 7 Edge Switch 2/16 (rear view 27 8 Edge Switch 2/24 (front view 28 9 Edge Switch 2/24 (rear view 29 10 Edge Switch 2/32 (front view 30 11 Edge Switch 2/32 (rear view 31 12 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 8
fabric connectivity 74 32 ISL bandwidth limitation 75 33 Server consolidation 76 34 Tape drive consolidation 77 35 Example multi-switch fabric 78 36 Cascaded fabric 90 37 Ring fabric 91 38 Full mesh fabric 92 39 2-by-14 Core-to-Edge fabric 94 40 4-by-12 Core-to-Edge fabric 95 41 ISL - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 9
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) application - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 10
firmware releases, please visit the HP StorageWorks website: http://h18006.www1.hp.com/storage/saninfrastructure.html For information about Fibre Channel standards, visit the Fibre Channel Industry Association website, located at http://www.fibrechannel.org. 10 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 12
symbols indicates the presence of electrical shock hazards. Enclosed area contains no operator serviceable parts. WARNING: To reduce the risk of personal injury from electrical shock plug telephone or telecommunications connectors into this receptacle. 12 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 15
99.9% (approximately 8.8 hours of down time per year). HP offers the 16-port StorageWorks Edge Switch 2/16, the 24-port StorageWorks Edge Switch 2/24, and the 32-port StorageWorks Edge Switch 2/32 that operate at 2.125 Gbps. These switches implement the same high-performance Fibre Channel technology - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 16
a High Availability Fabric Manager (HAFM) server, available from HP with the HAFM, Director 2/64 Product Manager, Director 2/140 Product Manager, Edge Switch 2/16 Product Manager, Edge Switch 2/24 Product Manager, and Edge Switch 2/32 Product Manager applications installed. The HAFM server is - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 18
HP Fibre Channel Products Directors Directors provide high-performance, dynamic connections between end devices such as servers, mass storage devices, and peripherals in a Fibre Channel switched network. Directors also support HP marketing representative. 18 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 19
Introduction to HP Fibre Channel Products Director Performance Directors Channel link operation. High availability is also provided through concurrent firmware upgrades and spare or unused Fibre Channel ports. ■ Low latency error per trillion (1012) bits. SAN High Availability Planning Guide 19 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 21
with duplex LC connectors. 1 Power and system error 4 Front bezel light-emitting diodes (LEDs) 5 Redundant control processor 2 2 Up to 16 universal port module (CTP2) cards (UPM) cards 3 Redundant power supplies Figure 2: Director 2/64 (front view) SAN High Availability Planning Guide 21 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 (rear view) The director provides a modular SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 23
Introduction to HP Fibre Channel Products Director 2/140 The Director 2/140 is a third-generation, enterprise-class switch that provides switched fabric connectivity for to system error LEDs 3 UPM cards (32) 4 CTP cards Figure 4: Director 2/140 (front view) SAN High Availability Planning Guide 23 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 24
HP Fibre Channel Products Figure 5 illustrates the rear of the director. 1 Fan modules 2 UPM cards (3) 3 Maintenance port 4 SBAR assemblies 5 AC modules 6 Power supplies Figure 5: Director 2/140 (rear view) The director provides a modular addresses. 24 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 26
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 (amber) 6 Power LED (green) Figure 6: Edge Switch 2/16 (front view) 26 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 28
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 (amber) 6 Power LED (green) Figure 8: Edge Switch 2/24 (front view) 28 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 30
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 (amber) 6 Power LED (green) Figure 10: Edge Switch 2/32 (front view) 30 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 32
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 switches or switch support - Directors and switches support - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 33
applications offer the following security features: ■ Password protection - Users must provide a user name and password to log in to the HAFM server and access managed directors and switches. Administrators can configure user names and passwords for up to 16 users, and can authorize or prohibit - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 34
on-site storage hardware support contract. To register or order Proactive Service software, contact your HP customer service representative. ■ An RS-232 maintenance port at the rear of the director or switch (port access is password protected) that enables installation or service personnel to change - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 36
Introduction to HP Fibre Channel Products 36 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 37
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 and restore - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 38
HP 64 Product Manager, Edge Switch 2/16 Product Manager, and Edge Switch 2/32 directors and switches controlled by 128 for information. ■ Management through the Internet using the EWS interface installed on the director or switch. This interface supports a user name and password at a login screen. - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 39
12 illustrates an example of out-of-band product management. In the figure, the managed product is a Director 2/64. The customer intranet could be an HP Ethernet hub providing device connectivity. 2 1 CCuussttoommeerr IInnttrraanneett ((1100//110000 MMbbppss)) StorageWorks SAN or switch port, - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 41
140, Edge Switch 2/16, Edge Switch 2/24, and Edge Switch 2/32. The applications provide a GUI and management services, and implement Web and other server functions. Refer to "Graphical User Interface" on page 48 for additional information about the applications. SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 43
directors and 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 J3294A 10/100 Hub 12 1 2 3 4 5 6 Link 100 7 8 9 10 11 12 Link 100 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 46
- All HAFM configuration data (product definitions, user names, passwords, user rights, nicknames, session options, SNMP trap recipients, logs). - Zoning library (all zone sets and zone definitions). - Firmware library. - Call-home settings (phone numbers and dialing options). - Configuration - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 47
for each product (Director 2/64, Director 2/140, Edge Switch 2/16, Edge Switch 2/24, and Edge Switch 2/32). The applications provide a GUI and management services for monitoring and controlling directors and switches. Management Services Application The Management Services application runs on the - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 -switch fabric. ■ Define and configure user names, nicknames, passwords, - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 49
, the Products tab opens by default and the Products View (Figure 16) displays. All managed products display as rectangular icons in the view window. Figure 16: Products View A label below the enabled number of ports) displays at the left side of the icon. SAN High Availability Planning Guide 49 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 51
Fabrics View opens, the Topology tab displays by default. The left panel displays an expandable Fabrics tree that lists managed fabrics, director, and switch elements in each fabric, and nodes (Fibre the colored icons. Figure 17: Fabrics View - Topology tab SAN High Availability Planning Guide 51 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 54
the colored icons. Embedded Web Server Interface With product firmware Version 1.2 (or later) installed, administrators or operators switch through an EWS interface. The interface provides a GUI similar to the Product Manager application, and supports ). 54 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 55
Perform product firmware upgrades and default password for both is password. When the interface opens, the default display is the View panel (Figure 20 on page 55). The View panel for the Director 2/64 is shown as an example. Figure 20 switch-specific tasks. SAN High Availability Planning Guide 55 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 56
The CLI is not an interactive interface; no checking is done for pre-existing conditions, and a user prompt does not display to guide users through tasks. For additional information, refer to the HP StorageWorks CLI Reference Guide for Edge Switches and Directors. 56 SAN High Availability Planning - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 58
2/64, Director 2/140, Edge Switch 2/16, Edge Switch 2/24, and Edge Switch 2/32 support point-to-point and multi-switch fabric topologies, and indirectly support arbitrated loop topology. A combination of these topologies (hybrid topology) is also supported. Related HP switches support switched mode - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 59
through a director or edge switch. The product-operational software switch is simple to implement and should be considered for server-to-storage applications where high performance, high availability, or extended distances are required on a continual basis. SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 60
(or the B_Port), and half-duplex or full-duplex operation (the default is half duplex) allows the devices to transmit or receive frames at : 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 61
Channel Topologies Figure 21: Shared mode operation ■ Switched mode - When set to switched mode or by default, the switch bypasses full loop arbitration and enables frame transmission fabric-attached server S5. All four transmissions operate at 1.0625 Gbps. SAN High Availability Planning Guide 61 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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, - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 63
delivery order. ■ Private device - A loop device that cannot transmit an FLOGI command to the switch nor communicate with fabric-attached devices is a private device. As shown in Figure 24 on page 64, device D2 is a private loop device that cannot communicate with any fabric-attached device. However - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 64
for the switch, such as partitioning attached devices into restricted-access groups (zoning), providing server-level access control (persistent binding), or providing storage-level access control. Refer to "Security Provisions" on page 131 for additional information. 64 SAN High Availability - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 68
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 of additional devices to ), devices, and cabling increases the round-trip time. 68 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 69
the request rate divided by the service rate. The request rate is the 32 or fewer devices should be attached to the 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 70
connected to a pair of devices (16 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 71
and ideally should only support connections and operations for up to 32 FC-AL devices. Therefore, an arbitrated loop can be 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 or - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 72
department or workgroup (normal and peak load) as part of the switch planning and installation process. Such capacity planning: - Ensures loop traffic nondisruptive growth requirements or eventual connection to a Fibre Channel switched fabric. Capacity planning is a dynamic activity that must be - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 75
exceed 1.0625 Gbps. Exceeding the total bandwidth may result in degraded performance, as shown in Figure 32. Arbitration Cycle Idle Burst Data (D1) Burst Data (D2) Burst Data (D3) Burst Data devices to the switch adversely impacts B_Port performance. SAN High Availability Planning Guide 75 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 79
ISLs. Edge Switches 2/16, 2/24, and 2/32 support all ports. For redundancy, at least two ISLs should connect any pair of director-class fabric elements. For information, contact your local HP sales representative or refer to the following website: http://h18000.www1.hp.com/products/storageworks/san - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 80
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 In addition, HP recommends that each director or switch in the fabric nondisruptive growth and service requirements, must be - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 81
Distance limitations can be increased by using multiple fabric elements. Each director or switch retransmits received signals, thus performing a repeater and multiplexer function. Distance limitations can for a fabric consisting of two Director 2/64s. SAN High Availability Planning Guide 81 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 82
2.1250 Gbps 4.2500 Gbps 6.3750 Gbps 8.5000 Gbps 10.6250 Gbps 12.7500 Gbps 14.8750 Gbps 17.0000 Gbps Available Fabric Ports 126 124 122 When balancing a load across multiple ISLs, a director or switch attempts to avoid assigning multiple ports attached to a device SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 83
unit and both devices participate in a critical nightly backup operation. HP switch. - If you have three fabric elements and set two to Default and one to Never Principal, the element with the Default setting and the lowest WWN becomes the principal switch. SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 84
the fabrics from joining. To prevent this problem, HP recommends that all directors and switches be assigned a unique preferred domain ID. This is particularly important if zoning is implemented through port number (and by default domain ID) rather that WWN. 84 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 85
supporting OEM publications for the product, or contact HP. ■ Path selection - Directors and switches are not manually services firmware on each director or switch. switches detect the original minimum-hop path and route Fibre Channel frames over that path. SAN High Availability Planning Guide 85 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 86
firmware balances the data transfer load and assigns ISLs as follows: - The director or switch (longer) path. This can cause problems because many Fibre Channel devices cannot receive are discarded without notification. By default, the rerouting delay parameter is SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 89
■ Mesh. ■ Core-to-edge. ■ Fabric islands. Cascaded Fabric A cascaded fabric consists of a linear string of directors or switches connected by one or fabric devices. However, this fabric design has low reliability because each director, switch, or ISL is a single point of failure. In addition, the - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 90
10/100 RST 31 29 27 25 23 TM 30 28 26 24 21 19 17 15 13 11 9 22 20 18 7 5 3 1 16 14 12 10 8 6 4 2 0 PWR ERR TM Interswitch Link Fabric Class F traffic) or low-bandwidth SAN applications. For additional information, refer to "Device Locality" on page 100. - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 91
24 22 20 18 16 15 14 13 12 11 problems inherent to cascaded fabrics. Ring fabrics also have increased reliability because traffic can route around a single ISL, director, or switch SANs over a MAN or WAN. These networks typically use a ring topology. SAN High Availability Planning Guide 91 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 94
29 27 25 23 TM 21 30 19 17 15 13 28 26 24 22 20 18 16 11 9 7 5 3 1 14 12 10 8 6 4 2 0 PWR ERR 10/100 RST TM PWR ERR Edge Switches Interswitch Link Fabric Connection Tier 2 Devices Figure 39: 2-by-14 Core-to-Edge fabric 94 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 95
21 19 TM 17 15 30 28 26 24 22 20 18 16 13 11 9 7 5 3 1 14 12 10 8 6 4 2 0 PWR ERR TM Core Directors TM Tier 1 Devices Edge Switches TM TM 10/100 RST 31 29 27 data integrity, connectivity, and scalability requirements. SAN High Availability Planning Guide 95 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 96
core switches are connected. The figure also illustrates a topology where the core is a full-mesh fabric. Each edge switch connects (through at least one ISL) to each core switch, but not to other edge switches bandwidth usage between the fabric islands. 96 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 high bandwidth to the device. 98 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 99
connectivity. For information about application I/O (in Gbps) and fabric performance problems due to ISL connectivity, refer to "ISL Oversubscription." For information about 41: ISL oversubscription 1 Gbps ISL NT Server 1 NT Server 2 10 15 20 25 Time (Sec) SAN High Availability Planning Guide 99 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 100
problems problem firmware, and hardware can be upgraded to 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 101
core-to-edge fabric, servers and storage devices that support such bandwidth-intensive applications should be attached to core can be serviced by a storage or array port IOPS divided supported is 12 to 1. Figure 43 illustrates a fan-out ratio of 10 to 1. SAN High Availability Planning Guide 101 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 103
19 17 TM 30 28 26 24 15 13 11 9 22 20 18 16 14 12 10 7 5 3 1 8 6 4 2 0 PWR ERR 11 Total Servers 10 MBps 1,000 IOPS 10/100 RST TM PWR ERR 6 Total Servers 20 core director as Tier 1 devices. No ISLs are used for server - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 104
1,000 IOPS are fabric-attached through a 32-port edge switch. The primary applications are e-mail and 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 core SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 106
fabric "B" are symmetrical, each containing one core director and four edge switches. All servers and storage devices are Redundant fabrics Some dual-attached devices support active-active paths, while others support only active-passive paths. Active-active SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 107
relates to investment protection. If a core edge switch is replaced 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 about 24 director or edge switch parameters SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 110
are configured by: ■ The 8-byte (64-digit) WWN assigned to the host bus adapter (HBA) or Fibre Channel interface installed in a device connected to the director or switch. ■ The domain identification (ID) and physical port number of the director or edge switch port to which a device is attached - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 111
a UPM card map only for the Director 2/64, physical port numbers and logical port addresses can be extrapolated for the Director 2/140 (140 ports), Edge Switch 2/16 (16 ports), Edge Switch 2/24 (24 ports), and Edge Switch 2/32 (32 ports). Management Limitations The following considerations must be - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 112
and director or switch firmware do not prevent of registered state change notification (RSCN) service requests to FICON devices. If a FICON attached to these assigned ports. In addition, the PDCM array affects port connections at the hardware level, so a SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 113
in FICON management style- When the director or switch is set to FICON management style, only a single domain (fabric element) is supported. Inband management through the FMS is also supported. Zoning can be layered on top of PDCM arrays to manage connectivity for attached FCP devices. However - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 114
Data 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 115
4 This chapter describes the physical planning considerations for incorporating Hewlett-Packard (HP) Director 2/64s, Edge Switch 2/16s, and Edge Switch 2/32s into storage area networks (SANs) and Fibre Channel fabric topologies. The chapter provides planning considerations and recommendations - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 116
(32 ports total), to a maximum of 16 UPM cards (64 ports total). UPM cards provide four 2.125 Gbps port connections, and can be configured with shortwave transceivers, longwave transceivers, and extended longwave transceivers, or a combination of all three. 116 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 117
(64 ports total), to a maximum of 35 UPM cards (140 ports total). UPM cards provide four 2.125 Gbps port connections, and can be configured with shortwave transceivers, longwave transceivers, and extended longwave laser transceivers, or a combination of all three. ■ Edge Switch 2/16 - The switch - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 118
Distance between a director or switch and the attached Fibre Channel device A 62.5 micron cable is only supported for the use of existing cable plants. HP recommends the use of 50 micron (shortwave or longwave). Refer to the supporting documentation delivered with the product for information. - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 119
and 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 cables rerouted and reconnected while the director or switch is operational. SAN High Availability Planning Guide 119 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 120
provides Fibre Channel cable and connector planning information as follows: ■ Cables for all directors and switches. ■ Optical connectors for Director 2/64, Director 2/140, Edge Switch 2/16, Switch 2/24, and Edge Switch 2/32. Cables Fiber-optic jumper cables are required to connect director and - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 122
drawer in the equipment rack. The server supports up to 48 HP directors or switches (managed products). The server is used to switch. The only operating effect of a server failure is loss of remote access, configuration, management, and monitoring functions. 122 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 127
Physical Planning Considerations Figure 49: Typical network configuration (two Ethernet connections) SAN High Availability Planning Guide 127 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 128
send SNMP trap messages to up to 12 recipients. In addition, there is a separate SNMP agent that runs on each director or switch that is configured through the Product Manager access) of managed products, usernames, and passwords are tightly controlled. 128 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 130
switch without the control unit port (CUP) feature is Version 2.6, plus service listed in PSP bucket upgrade 2032, device subset 2032OS390G5+. The minimum OS/390 level for a director or switch with the CUP feature is Version 2.1, plus service (GC28-1550). 130 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 131
switch (through the HAFM application, Product Manager application, and Web server interface) is restricted by implementing password and password. Up to 16 user names and associated passwords can are the default if no other firmware loads, and data collection. SAN High Availability Planning Guide 131 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 132
access usernames, and controls associated passwords. Name Server Zoning Directors and switches support a name server zoning feature 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 133
storage units), 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 134
zones in a zone set is 1,023 (1,024 including the default zone). ■ Number of zone sets - The maximum number of configurable zones sets is 64. ■ Active zone set - The zone set that is active across all directors and switches in a multi-switch fabric. For the active zone set: - When a specific zone - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 135
- All devices are considered to be in the default zone if there is no active zone set. ■ RSCN service requests - Registered state change notification (RSCN) service requests are transmitted to all N_Ports attached to the director or switch when the zoning configuration is changed. ■ Broadcast frames - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 136
zones and zone sets, and carefully coordinate the zoning and multi-switch fabric tasks. Server and Storage-Level Access Control To enhance the access Fibre Channel storage volume or logical unit number (LUN), through a specific HBA and storage port WWN. 136 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 137
. 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 our professional services organization before implementing a fabric topology. SAN High Availability Planning Guide 137 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 138
of the OSMS or FMS feature. Note: The Edge Switch 2/24 does not support out-of-band management through FMS. ■ Flexport Technology - The Flexport technology feature is a hardware port expansion kit that allows customers to upgrade switch capacity on demand in eight-port increments. A Flexport - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 140
are available to upgrade the following: ■ Edge Switch 2/16 from 8 to 16 ports. ■ Edge Switch 2/32 from 16 to 24 ports, or from 24 to 32 ports. ■ Edge Switch 2/24 from 8 to 16 ports, or from 16 to 24 ports. Each port expansion kit includes eight SFP optical transceivers, upgrade instructions, and - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 141
ensuring that only the intended set of devices attaches to a director or switch. This feature is managed through the Product Manager application. Enterprise Fabric Mode occurs and the affected director or switch cannot be added to the membership list. SAN High Availability Planning Guide 141 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 143
Physical Planning Considerations The figure illustrates two Director 2/64 directors connected by two ISLs. Three servers use the ISLs to communicate with two and server 3 routes low data rate traffic through ISL 2 to storage device 2 (ISL undersubscription). SAN High Availability Planning Guide 143 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 144
Physical Planning Considerations 144 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 145
installing the High Availability Fabric Manager (HAFM) server and one 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 following planning tasks are described in the chapter. ■ Task 1: Prepare a Site - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 147
while maintaining accessibility to the director or switch. ■ Equipment rack front and rear service clearances, operator clearances, and maintenance access identify attached devices, and assign password levels and user names for director and switch access. SAN High Availability Planning Guide 147 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 148
LAN connections to corporate intranet for remote workstation access (optional). 10, 20, or 35 kilometers for 9/125 µm single-mode cable. Cables are purchased by the customer separately. Plan to have them arrive and laid out before equipment rack delivery. 148 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 149
switches (if installing on a LAN with non-HP devices). Remote user workstation (optional). Obtain gateway addresses for router or other gateway devices on company LAN. Assign host names. Add host name to DNS database. Determine what level of HAFM application user rights are to be used for up to 16 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 152
elements) is supported. Inband management through the open-systems management server (OSMS) is also supported. ■ When a director or switch is set to feature is enabled, the default management style is FICON. Open Systems management style cannot be enabled. 152 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 155
products and the HAFM server on a public LAN containing other devices, default network addresses may require change to avoid address conflicts with existing devices. For the Director 2/64, Edge Switch 2/16, and Edge Switch 2/32, change the IP address, gateway address, and subnet mask through - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 156
address is blank. Task 7: Plan SNMP Support (Optional) As an option, network up to 12 SNMP management workstations. Administrators 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 157
switch e-mail support. The following support considerations HP recommends this approach. ■ Access to products is possible through the maintenance port. This connection is for use by authorized service 16) who have access to the HAFM and Product Manager applications, and assign user names, passwords - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 159
the Planned Configuration") to the worksheet, and transfer port names and nicknames (assigned while performing "Task 12: Assign Port Names and Nicknames"). In addition, indicate all unused ports. Retain the planning worksheet as part of a permanent record. SAN High Availability Planning Guide 159 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 165
of 24), number 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 166
(A through Z, a through z, or 0 through 9), a dollar sign ( $ ), hyphen ( - ), caret ( ^ 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 168
86 Edge Switch 2/16, description 26, 28 Edge Switch 2/32, description 30 Embedded Web Server interface 54 Enterprise Fabric mode 141 equipment symbols 12 Ethernet adapters 42 Ethernet LAN connectors 42 EWS interface 54 extended distance, support 32 F fabric availability 104 cascaded 89 core-to-edge - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 169
32 product 32 security 33 serviceability 34 Fibre Channel topologies 58 Fibre Connection management server, see FMS Fibre Connection, see FICON FICON product management 40 FICON management server description 139 field replaceable units, see FRUs firmware application services 45 fabric services - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 171
private loop 65 product, software 47 product features, overview 32 product management FICON 40 FMS 40 inband access 39 OSMS 39 Product Manager application 53 Products View 49 profile, I/O 98 public arbitrated loop typology 73 public device 62 public loop 65 SAN High Availability Planning Guide 171 - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 172
mask director default 155 HAFM server default 156 switch Edge Switch 2/16 description 26, 28 Edge Switch 2/32 description 30 fabric, definition 15 FC-AL, definition 16 selection 83 switch binding 141 switched mode 61, 70 symbols in text 12 symbols on equipment 12 SAN High Availability Planning Guide - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - Page 173
, loop 69 text symbols 12 Tier 1 96 Tier 2 96 Tier 3 96 topology cascaded fabric 89 core-to-edge fabric 94 fabric island 96 Fibre Channel 58 mesh fabric 92 private arbitrated loop 66 public arbitrated loop 73 ring fabric 91 types of 58 topology support director 20 Topology tab 51 topology, planning - HP StorageWorks 64 | FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availa - 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.