HP LH4r Integrated HP NetRaid Controller Configuration Guide
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- HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 1
Integrated HP NetRAID Controller Configuration Guide HP Part Number 5967-5210 Printed in June 1998 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 2
-Packard shall not be liable for errors contained herein or for incidental or the use or reliability of its software on equipment that is not furnished Guide is for the person who installs, administers, and troubleshoots LAN servers. Hewlett-Packard Company assumes you are qualified in the servicing - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 3
Features of the Integrated HP NetRAID Controller 1 Channels and Devices 1 Controller Hardware 2 SCSI Firmware 3 Array Spanning 3 I2O Support 3 Physical Disk Roaming 3 Multiple Adapters 3 Fault-Tolerance and Management Features 4 Changing Capacity and RAID Levels 4 About This Guide 5 Other - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 4
Logical Drives 55 Exit HP NetRAID Assistant 56 6 HP NetRAID Software 57 Overview ...57 Step H. Decide Which HP NetRAID Drivers You Need 57 Step I. Use the HP NetServer Navigator CD-ROM to Prepare Disks 58 Check Latest Versions 58 Create Drivers Diskette and Instructions 58 Make NOS-specific - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 5
NetRAID Assistant 87 Select Another Server-Adapter Pair 88 Exit HP NetRAID Assistant 89 9 Configuring a Second Integrated HP NetRAID Channel 91 Options for Adding a Second Channel 92 Option A: Your NOS is Installed on a RAID Logical Drive 92 Option B: Your NOS is Installed on a Non-RAID Hard - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 6
-up (Boot) Error Messages 105 Other BIOS Error Messages 109 Other Troubleshooting 109 Troubleshooting Management Over the Network 111 12 Warranty and Support 113 Hardware Warranty 113 Obtaining HP Repair and Telephone Support 113 A Product Specifications 115 Integrated HP NetRAID Controller - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 7
You can configure your linked drives in a RAID (redundant array of independent disks) subsystem. Channels and Devices The integrated HP NetRAID controller supports one or two channels as configured by the user. Each of the two integrated Symbios SCSI controllers on the HP NetServer LH 3/LH 3r can be - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 8
For each HP NetRAID channel, you can have either one internal, or one external connection. • The HP NetServer LH 3/LH 3r hot-swap mass storage cage supports up to six Ultra2 disk drive modules. • A second hot-swap mass storage cage can be installed in your HP NetServer LH 3/LH 3r which supports an - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 9
Support The integrated HP NetRAID controller supports I2O (Intelligent Input/Output) with some operating systems. For a complete list of operating systems for which HP NetRAID I2O drivers are available, see the HP web site at http://www.hp.com/go/netserver. Physical Disk Roaming The integrated HP - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 10
data Changing Capacity and RAID Levels The integrated HP NetRAID controller can expand capacity and change RAID levels of logical drives without powering down the server. • Online Capacity Expansion: You can add a physical drive to a RAID 0, 3, or 5 logical drive. This can be an online operation if - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 11
About This Guide This Integrated HP NetRAID Controller Configuration Guide helps you plan and configure your HP NetRAID system. It guides you through power-up, launching the HP NetServer Navigator software, configuring the HP NetRAID system, and installing a NOS-specific configuration utility - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 12
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. It describes the different RAID levels available with the integrated HP NetRAID controller. For definitions of terms not introduced here, see the Glossary. RAID Overview The integrated HP NetRAID controller lets you link multiple hard disk drives together and write data across them as if they were - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 14
from one or two different channels. Hot Spares A hot spare is a powered-on, stand-by disk drive that is ready for use should another disk drive fail. When a disk fails, the HP NetRAID firmware can automatically rebuild the data from the failed disk onto the hot spare. The system administrator can - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 15
has different advantages in terms of performance, redundancy, and capacity. The integrated HP NetRAID controller supports both non-spanned array and spanned array configurations. • Non-spanned arrays have logical drives that are contained entirely within the array. Non-spanned array configurations - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 16
disk space is allocated for redundancy. Access time is fast for both reads and writes. RAID 0 Disadvantages RAID 0 provides no redundancy so if a hard drive fails, data must be restored from backup. Hot spares cannot be used with RAID 0 configurations. RAID 0 Summary Choose RAID 0 if redundancy is - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 17
duplicated on another disk. This is called mirroring. RAID 1 must be configured on a two-disk array. (The array cannot contain more than two disk drives.) With this algorithm, if either of the two disks fail, data is available from the duplicate disk. Data is written as follows: Stripe 1 Stripe - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 18
due to disk failure, because if one disk fails, data can be rebuilt. Only one disk in the RAID 3 logical drive is reserved to provide redundancy. HP NetRAID firmware optimizes RAID 3 data flow for long, serial data transfers such as video or imaging applications. RAID 3 Disadvantages Performance is - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 19
. For example, to change Block 1 in the diagram above, the integrated HP NetRAID controller must first read Blocks 2, 3, and 4 before it can calculate rebuilt. Capacity equivalent to only one disk in the RAID 5 logical drive is reserved to store redundant data. RAID 5 outperforms RAID 1 for read - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 20
the capacity of two, three, or four arrays to be combined into a single storage space. A spanned array configuration must have the same number of disk drives in each array: each array can have two disks, three disks, four disks, and so on. RAID 10: Spanning with Mirrored Arrays A RAID 10 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 21
to disk failure, because if one disk fails, data can be rebuilt. Only one disk in each array of a RAID 30 logical drive is required to provide redundancy. HP NetRAID firmware optimizes RAID 30 data flow for long, serial data transfers such as video or imaging applications. RAID 30 lets you create - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 22
offline operation only. Performance is slower than RAID 0 or RAID 10. RAID 50 Summary Choose RAID 50 if you need a large logical drive size, and cost, availability, and performance are equally important. RAID 50 performs best for I/O-intensive, high read/write ratio applications such as transaction - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 23
Chapter 2 RAID Overview Table 2-1. RAID Level Summary for RAID Levels 0 to 5 RAID Level Also Known As RAID 0 striping Fault Tolerance Redundancy Type Hot Spare Option Disks Required Usable Capacity Capacity Reduction Read Performance Random Write Performance Sequential Write Performance Typical - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 24
yes duplicate yes 4 6 8* least 50% intermediate intermediate intermediate Mostly small random writes with fault tolerance and enhanced speed RAID 30 striping with dedicated parity drives yes parity yes 6, 8, 10, 12, 14, or 16* 9, 12, or 15* 12 or 16* intermediate capacity of one disk for each array - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 25
Chapter 2 RAID Overview Figure 2-4. Decision Tree for Choosing a RAID Level 19 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 26
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Install NOS and HP NetRAID Drivers (Chapter 6) Step D. Enable Integrated HP NetRAID Controller (Chapter 5) Step K. Install NOS-specific Configuration Utility (Chapter 6) Step E. Boot HP NetServer Navigator to Launch HP NetRAID Assistant (Chapter 5) Step L. Run HP NetRAID Express Tools (Chapter - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 28
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B on which to write your choices for your integrated HP NetRAID controller. Step A. Plan Your Hardware In Step A, Plan Your Hardware, you will begin to fill out Worksheet A. But first, you must gather information about your HP NetServer and your user requirements. Gather Information You need to - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 30
Chapter 4 Planning Sample Worksheet A Figure 4-1 shows a sample Configuration Worksheet A. (See Appendix B for a complete explanation of this example.) Figure 4-1. Sample Worksheet A for Integrated HP NetRAID Controller 24 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 31
, you have either one internal or one external connection. The integrated HP NetRAID controller supports both internal and external connectors for Channels 0 and 1. SCSI Channels on the HP NetServer LH 3 and LH 3r The HP NetServers LH 3 and LH 3r have two SCSI channels: A and B. SCSI A has these - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 32
second channel, you must follow the instructions in Chapter 9, "Configuring a Second Integrated HP NetRAID Channel," in this guide. Record the SCSI ID number and physical capacity of each hot-swap drive in the correct channel on Worksheet A. Physical drives on different channels can be assigned to - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 33
rate is Ultra2, because the internal hot-swap mass storage cage supports Ultra2 disk drive modules. However, you can change the SCSI transfer rate to : • If integrated HP NetRAID is enabled for SCSI B, Automatic mode does not distinguish non-hot-swap devices from hot-swap disk drives in the mass - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 34
drives. If your nonhot-swap devices have the same capacity as your hot-swap disk drives, do not use Automatic mode. See "Custom Configuration," next in this guide following: • Plan your non-hot-swap devices (only if integrated HP NetRAID is enabled for SCSI B) • Plan your arrays • Plan hot spares - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 35
integrated HP NetRAID on SCSI B, you need to decide how to use the non-hot-swap SCSI devices. For each non-hot-swap device log its array number in Worksheet A. • Non-hot-swap drives channels. • You might plan to reserve one or more hot-swap drives for use as a hot spare. See "Plan Hot Spares ( - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 36
reserve different amounts of capacity to provide redundancy. • A single array can be divided into a maximum of eight logical drives. • The integrated HP NetRAID controller can support a maximum of eight logical drives. • If you want to use the online capacity expansion feature later on, logical - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 37
4 Planning Figure 4-2. Two Logical Drives Where Whole Arrays Appear on Different Channels Figure 4-3 shows the same configuration, except Array A0 contains physical drives from both Channel 0 and Channel 1. Figure 4-3. Two Logical Drives Where Array A0 Contains Drives on More than One Channel 31 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 38
ready for use should another disk fail. When a disk fails, the HP NetRAID firmware can automatically rebuild the data from the failed disk onto the logical drives of RAID 0, because this RAID level does not provide a means of recovering data. • A dedicated hot spare is assigned to a specific array. - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 39
. However, if you want to use the online capacity expansion feature later on, plan to create just one logical drive per array. • Consider what RAID levels you need. Review the information in Chapter 2 and look at Tables 2-1 and 2-2 that compare the RAID levels. • Look at the arrays you have defined - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 40
can span both of these arrays. ◊ Spanned arrays must be numbered consecutively. ◊ When you use an HP NetRAID utility to configure your system, and you specify that a logical drive will span arrays, the system will span all eligible arrays that are numbered consecutively and that contain the same - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 41
You can calculate the usable capacity to assign to each logical drive, or you can let the HP NetRAID Assistant Wizard specify it during configuration. If you calculate logical drive capacity, record it in Worksheet B. If you want a logical drive to occupy less space than is available on one array - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 42
power supply). NOTE Write Back is not certified for any logical drive used as a Novell NetWare volume. For each logical drive, record the write policy in Worksheet B. Read Policy The three Read policies for HP NetRAID are: • Read-Ahead: This is a memory caching feature that tells the - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 43
Chapter 4 Planning Cache Policy HP NetRAID lets you choose one of two cache policies: • Cached I/O: Reads are always cached regardless of randomness. is cached only if accessed repeatedly. With 100% randomness, nothing is cached. For each logical drive, record the cache policy in Worksheet B. 37 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 44
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do not conflict with the SCSI IDs of the hot-swap disk drive modules connected to SCSI B. Step D. Enable Integrated HP NetRAID Controller The HP NetServer LH 3 and LH 3r factory default setting enables the integrated HP NetRAID controller for the SCSI A port only. Use the Setup utility to verify - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 46
enables integrated HP NetRAID and includes SCSI A only. If you have changed the HP NetRAID configuration in the Setup utility, and then you reset to system defaults, you must re-enable the correct HP NetRAID channels before you exit the Setup utility. 1. Turn on the power to the HP NetServer and - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 47
Assistant, you must boot from the HP NetServer Navigator CD-ROM. Ensure that all the SCSI devices power up before or at the same time as the host computer. Boot Messages If you receive an HP NetRAID error message during the boot process, refer to Chapter 11, "Troubleshooting," or to the online help - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 48
HP NetRAID Series User Guide in Information Assistant for more information about HP NetRAID Assistant. The HP NetRAID Assistant window contains the following features from top to bottom: • Menu bar: The menu bar activates pull-down menus for Configuration, Adapter, Physical Drives, Logical Drives - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 49
configured. If you installed one or more HP NetRAID-3Si adapters in your HP NetServer, you can switch between the integrated HP NetRAID controller and other HP NetRAID-3Si adapters by using the Adapter box pull-down list. The integrated HP NetRAID controller is always Adapter 0. • Physical Devices - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 50
or more HP NetRAID-3Si adapters, look in the Adapter box to see if the integrated HP NetRAID controller is displayed. The integrated HP NetRAID controller Check Rebuild Rate During a rebuild, the content of a complete physical drive is rewritten. Normal operations can go on during a rebuild, but - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 51
have been moved, added, removed, changed, or changed in state since HP NetRAID Assistant was started, rescan the drives by choosing the Adapter menu and then selecting the Rescan option. To launch the HP NetRAID Assistant Wizard: 1. Select the Configuration menu. 2. Choose the Wizard. The Wizard - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 52
configuration modes: ◊ Select Custom if you want to define the arrays and logical drives and set their parameters. ◊ Select Automatic if you want the HP NetRAID Assistant Wizard to define the arrays and logical drives (and set their parameters) for you automatically. When you select Automatic mode - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 53
Configuration" later in this chapter. Define Physical Arrays and Dedicated Hot Spares NOTE Refer to Worksheet A when defining arrays. The HP NetRAID Assistant Wizard Array Definition window appears, displaying the Physical Devices and Logical Devices configured on your system. It will be similar - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 54
can be assigned to the global hot spare pool, or they can be dedicated to a specific array. Only one hot spare can be dedicated to a given array. To assign a dedicated hot spare: 1. Select a Ready physical drive. Be sure nothing else is selected. 2. Click the Add Spare button. The Hot Spare Target - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 55
and hot spares: • Click the Next button. Define Logical Drives NOTE Refer to Worksheet B when defining logical drives. After you finish defining arrays and hot spares, and click Next, the HP NetRAID Assistant Wizard Logical Drive Definition window appears. A sample window is shown in Figure - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 56
box depicts the arrays, the logical drives on each array, and the global hot spare pool. Logical drives are labeled as new and as LD0 through LD7. Click on the + sign in the yellow diamond if the view is collapsed (logical drives are hidden). The HP NetRAID Assistant Wizard is ready for you to - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 57
. If there is still space in the current array, the new logical drive is on it. 6. Define any other logical drives on the current array that will not span to the next array. HP NetRAID Assistant Wizard keeps creating logical drives on the same array until its capacity is used fully, or until there - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 58
has been satisfied: ◊ All capacity has been assigned to logical drives. ◊ Eight logical drives have been defined. Preview Configuration NOTE Refer to Worksheets A and B when checking the configuration. The HP NetRAID Assistant Wizard Configuration Preview window, shown in Figure 5-6, displays the - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 59
5-6. HP NetRAID Assistant Wizard Configuration Preview Window NOTE The RAID level of a logical drive that spans arrays lacks the terminal zero. Mentally add it to make RAID 1 into RAID 10, RAID 3 into RAID 30, and RAID 5 into RAID 50. To switch between showing logical drives and physical drives - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 60
is being written to the controller's NVRAM and to the physical drives. This is not a binary file that can be loaded to restore the configuration. HP NetRAID Assistant asks if you want to initialize your logical drives now. Logical drives must be initialized before they can be used. 2. Click the OK - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 61
configuration file. They help you understand your configuration, or communicate with HP Customer Support. Initialize Logical Drives If you have not done so already, you must initialize your logical drives. CAUTION Initializing a logical drive destroys all data currently on the disk modules. 55 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 62
6. Repeat the initialization process for other logical drives as necessary. Exit HP NetRAID Assistant To exit HP NetRAID Assistant, choose Exit from the Configuration menu. You have now completed the configuration of the HP NetRAID system hardware. The next chapter discusses HP NetRAID software. 56 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 63
you run HP NetRAID Express Tools (optional) Step H. Decide Which HP NetRAID Drivers You Need Before you begin to install your software, you must decide which set of drivers you need. Non-I2O drivers are provided for all network operating systems supported by the integrated HP NetRAID controller. In - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 64
to install the non-I2O HP NetRAID drivers and the HP NetRAID configuration utility specific to your NOS. You need to: • Verify that you have the most recent version of the HP NetServer Navigator CD-ROM • Create the diskette(s) containing the non-I2O drivers and instructions • Create the diskette - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 65
Chapter 6 HP NetRAID Software 1. Turn on the HP NetServer and monitor, and insert the HP NetServer Navigator CD-ROM into the drive. Turn off the HP NetServer power, wait 10 seconds, and turn it back on again. 2. From the HP Navigator Main Menu, choose Configuration and Installation Assistant. 3. - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 66
, also see the Novell NetWare Installation book. For the HP NetServer LH 3 or LH 3r, the NOS can be installed on a non-hot-swap drive or on a logical drive in the RAID subsystem. Install HP NetRAID Series Driver Load the appropriate driver as instructed in the Network Operating System Installation - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 67
Chapter 6 HP NetRAID Software Step K. Install NOS-specific Configuration Utility In this step, you install the configuration utility specific to Windows NT or Novell NetWare. • If you are using Microsoft Windows NT, you install the HP NetRAID Assistant utility. This is the Windows NT version of - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 68
Chapter 6 HP NetRAID Software Novell NetWare 3.2 1. Exit to the DOS prompt. 2. Insert the diskette called "NetRAID Utilities for NetWare." 3. Type Copy :\NetRAID\*.* :\server.312, where is the drive letter for the diskette drive and is the hard disk where NetWare is installed. - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 69
Chapter 6 HP NetRAID Software To change the SCSI transfer rate: 1. If you have installed one or more HP NetRAID-3Si adapters, select the integrated controller or adapter controlling the SCSI channel on which Fast/Wide or Ultra SCSI support is to be enabled: ◊ Choose Select Adapter from the Tools - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 70
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prepare logical drives for future online expansion. The HP NetRAID Series User Guide in Information Assistant describes how to actually expand capacity. NOTE If you are using I2O drivers, some special precautions exist. See the I2O information on the following web site: www.hp.com/go/netserver 65 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 72
to add capacity you must shut down the server to reconfigure and then restore data, or you 27 GB can be expanded online by adding another hard disk drive, but the partition remains at 144 GB. Precautions a SCSI disk outside of the HP NetRAID system). During installation, if the total physical capacity is - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 73
to this volume, you cannot write beyond the physical limit and write errors will be generated when the physical space is filled. You need to the two systems down if enough drives are added to create a new array and logical drive on an integrated HP NetRAID controller. Under the Install module, - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 74
on the disk array, create a single logical drive with Virtual Sizing enabled. Create a DOS partition of 500 MB or less for booting. NetWare volumes can the operating system is installed on a SCSI drive connected outside of the HP NetRAID system. The following steps are necessary to prepare - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 75
misrepresentation of logical drives under NetWare's Install module. • You already installed NetWare as discussed in Chapter 6. 1. Enable Virtual Sizing. 1. Restart the host HP NetServer, and watch for the message: Option: Experienced users may press for HP NetRAID Express Tools now - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 76
installed one or more HP NetRAID-3Si adapters, press Esc to return to the Objects menu. Enable Virtual Sizing on the logical drives of all adapters as necessary in Express Tools to disable Virtual Sizing for all logical drives, or manually change the setting. 2. Create the NetWare Partition. 1. - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 77
Create a DOS partition of 500 MB or less for booting. 2. Create additional NetWare volumes after the DOS partition on the same logical drive for data. 3. The NT Theory of Operation Normally, adding capacity requires shutting down the server to reconfigure/restore an existing volume or to add the new - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 78
Expansion" in the HP NetRAID Series User Guide in Information Assistant. Capacity Expansion is enabled separately on each logical drive. When enabled, the controller presents to the operating system a logical drive of 500 GB. However, only a part of the 500-GB logical drive exists as actual - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 79
of logical drives under the Windows NT Disk Administrator. • You have already installed Windows NT as discussed in Chapter 6. 1. Enable Virtual Sizing. 1. Restart the host HP NetServer, and watch for the message: Option: Experienced users may press for HP NetRAID Express Tools - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 80
in HP NetRAID Express Tools to disable Virtual Sizing for all logical drives, or manually change the setting. 2. Start NT and Enter the Disk Administrator. Start NT and enter the Disk Administrator. Here you see the new logical drive shown as a single unpartitioned/unformatted drive of 500 GB - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 81
Expansion Partition and Format Drives that do not Contain Windows NT Follow these instructions for drives that do not contain Windows drive is now ready for use. Assume for this example that the drive is now E: and was partitioned as a primary partition. The remaining virtual storage space (500 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 82
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to manage the integrated HP NetRAID controller and other HP NetRAID Series adapters over a network. It lists features of the software, identifies the operating systems it supports, details installation instructions, and shows how to get started. It contains instructions for servers running Microsoft - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 84
installing the software for HP NetRAID management, ensure that the network is operating and that all of the following have been done: • Integrated HP NetRAID controllers (and HP NetRAID Series adapters) are configured in all servers to be managed. (See Chapter 5 of this guide for instructions.) 78 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 85
Network • NOS-specific drivers are installed in all servers. (See Chapter 6 of this guide for instructions.) • TCP/IP is configured and operational on all clients and servers. • You must know the server names and their IP addresses. Understanding HP NetRAID Network Utilities The software that lets - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 86
does not have to be the same server or client that is running HP NetRAID Assistant. The HP NetRAID Registration Server utility can be installed on only one server running Microsoft Windows NT or Novell NetWare. The HP NetRAID Registration Server utility can be installed on only one client running - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 87
Installation HP NetRAID Management Functions HP NetRAID Registration Server HP NetRAID Access Service HP NetRAID Assistant Server: - is the Registration Server X - has no HP NetRAID controller - cannot run HP NetRAID Assistant Server: - is not a Registration Server - has HP NetRAID - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 88
NetRAID Utilities for NetWare. 6. Follow the onscreen instructions to create the diskette. 7. When the diskette is complete, remove the HP NetServer Navigator CD-ROM and click Exit to reboot the HP NetServer. Microsoft Windows NT Client or Server Installation Instructions For each client or server - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 89
1 of "NetRAID Assistant for Windows NT and Windows 95." 3. Type :\setup at the Open prompt, where is the drive letter of the diskette drive you are NetRAID Registration Server manages a list of HP NetRAID adapters. ◊ NetRAID Access Service allows server management over the network. ◊ NetRAID - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 90
window, type the password that must be given for Full Access mode to manage this server. Passwords are case-sensitive. NOTE The Setting Password Screen appears only if you installed HP NetRAID Access Service in Step 6. 11. Choose to restart Windows now or defer this until later. The Setup - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 91
Chapter 8 Managing Servers Over the Network NOTE HP recommends that all servers and clients that manage integrated HP NetRAID controllers (or HP NetRAID Series adapters) over the network have the same hosts file content. This prevents problems in resolving server names and addresses. Finishing - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 92
group). To access an HP NetRAID Series adapter in a server from the network, the three services listed below must be running. Start them in the order listed. You may set them for automatic start, if desired. 1. NobleNet Portmapper: It should have been installed by the HP NetRAID software and set for - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 93
Access Service: Start it by double-clicking on its Windows icon or by loading NetWare module raidserv.nlm. NOTE To change the password for a server using Windows NT, run setpass.exe under \netraid\dll\. To change the password for a server using NetWare, reinstall the HP NetRAID management software - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 94
Over the Network If HP NetRAID Assistant is started on a client or server that can access integrated HP NetRAID controllers (or HP NetRAID Series adapters) over the network, you must select the server you want to access. The HP NetRAID Assistant Main window has a Server pull-down list next to - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 95
--such as Performance Monitor or the rebuilding or reconstruction of a drive--are running in Full Access mode. You cannot change from View Only mode to Full Access mode. Instead, exit HP NetRAID Assistant and restart. Choose the server and Full Access mode. Then enter the password. When selecting - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 96
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Channel If you have already configured, and are operating, a one-channel integrated HP NetRAID system, you can add a second HP NetRAID channel at any time. This chapter provides instructions on adding a second HP NetRAID channel after one channel has been operating for a time. (There are no special - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 98
A: Your NOS is Installed on a RAID Logical Drive There are two sets of instructions for enabling a second integrated HP NetRAID channel when your NOS is installed on a RAID logical drive: • See Option A-1 if you started with SCSI A enabled for HP NetRAID (the default mode), and now you want to - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 99
" in this guide for complete instructions. ◊ Integrated HP NetRAID should be set to Enable. ◊ Included SCSI_A Channel should be set to Yes. ◊ Included SCSI_B Channel should be set to Yes. 6. Boot the HP NetServer Navigator CD-ROM. You will see the following message during power up: New drives found - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 100
Chapter 9 Configuring a Second Integrated HP NetRAID Channel 11. Save your configuration and initialize your new logical drives on Channel 1 as described in "Step G" in Chapter 5 of this guide. Exit HP NetRAID Assistant. CAUTION Do not initialize the existing logical drives on Channel 0! If you - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 101
" in this guide for complete instructions. ◊ Integrated HP NetRAID should be set to Enable. ◊ Included SCSI_A Channel should be set to Yes. ◊ Included SCSI_B Channel should be set to Yes. 7. Boot the HP NetServer Navigator CD-ROM. You will see the following message indicating that the drive roaming - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 102
reasons, non-hot-swap devices and hot-swap drives should not be combined in the same array. 5. Log off all users, close all applications, and shut down the HP NetServer. 6. Boot the HP NetServer Navigator CD-ROM and follow the instructions in "Step E" in Chapter 5 to launch HP NetRAID Assistant. 96 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 103
choose Clear Configuration. 8. Exit HP NetRAID Assistant and reboot the HP NetServer. 9. Enable HP NetRAID on the second SCSI channel using the Setup (F2) utility. See "Step D. Enable Integrated HP NetRAID Controller" in this guide for complete instructions. ◊ Integrated HP NetRAID should be set to - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 104
- HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 105
. To use HP NetRAID Assistant from the HP NetServer Navigator CD-ROM, you must reboot your HP NetServer. For a list of functions performed by HP NetRAID Assistant, see the menu chart that follows. For complete instructions on using HP NetRAID Assistant, see the HP NetRAID Series User Guide. 99 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 106
Chapter 10 HP NetRAID Assistant Menus Understanding HP NetRAID Utilities Figure 10-1. HP NetRAID Assistant Menu Chart 100 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 107
HP NetServer to use HP NetRAID Config. To start HP NetRAID Config utility if you have Novell NetWare, type load megamgr For a list of functions performed by HP NetRAID Config, see the menu chart that follows. For complete instructions on using HP NetRAID Config, see the HP NetRAID Series User Guide - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 108
Chapter 10 HP NetRAID Config Menus Understanding HP NetRAID Utilities Figure 10-2. HP NetRAID Configuration Menu Chart 102 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 109
the HP NetServer. 3. When the following prompt appears, press . Option: Experienced users may press for HP NetRAID Express Tools now. Firmware Initializing For a list of functions performed by HP NetRAID Express Tools, see the menu chart that follows. For complete instructions - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 110
Chapter 10 HP NetRAID Express Tools Menus Understanding HP NetRAID Utilities Figure 10-3. HP NetRAID Express Tools Menu Chart 104 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 111
at Baseport xxxxh not Responding Problem: The HP NetRAID BIOS cannot communicate with the firmware on the adapter. Suggested solutions: Remove any HP NetRAID adapters from the PCI slots. If the error message persists, see the Service and Support chapter of the HP NetServer LH 3/LH 3r User Guide. 105 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 112
Problem: The HP NetRAID BIOS cannot communicate with the firmware on the adapter. Suggested solutions: Remove any HP NetRAID adapters from the PCI slots. If the error message persists, see the Service and Support chapter of the HP NetServer LH 3/LH 3r User Guide. Configuration of NVRAM and drives - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 113
reconfigure all of your drives using one of the HP NetRAID utilities (HP NetRAID Assistant, HP NetRAID Config, or HP NetRAID Express Tools). See the HP NetRAID User's Guide for more information. 5. Restore your data from a backup copy. 1 Logical Drive Failed Problem: One logical drive failed to sign - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 114
degraded. 2. Correct the problem with the physical drive by reconnecting, replacing, or rebuilding it. Insufficient Memory to Run. Press any Key to Continue ... Problem: There is insufficient memory in the HP NetServer to run the HP NetRAID BIOS. Suggested solution: Check the HP NetServer to be sure - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 115
the drive or drives that should not be used. Other Troubleshooting NOS Does Not Load (Boot) Problem: Operating system does not load at start up time. Suggested solutions: • Use the Setup utility to define the boot order. (Press the F2 function key during startup.) • Use HP NetRAID Express Tools - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 116
Chapter 11 Troubleshooting Hard Drive Fails Often Problem: One of the hard drives in the array fails often. Suggested solutions: • Check the drive error counts using HP NetRAID Assistant Physical Drive Properties. Be aware that the drive error counter clears if the drive is moved or powered off - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 117
Chapter 11 Troubleshooting HP NetRAID BIOS Banner Not Displayed Problem: The HP NetRAID BIOS and firmware banner does not appear. Suggested solution: Use the Setup utility to ensure that integrated HP NetRAID has been enabled for the appropriate channels. See Step D in Chapter 5 for information. - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 118
Chapter 11 Troubleshooting Can't unload raidserv.nlm If an integrated HP NetRAID controller (or HP NetRAID Series adapter) in a NetWare server is being accessed by a configuration utility (HP NetRAID Assistant in Full Access mode or HP NetRAID Config), the raidserv.nlm module cannot be unloaded - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 119
with your original HP NetServer system documentation for the warranty limitations, customer responsibilities, and other terms and conditions. Obtaining HP Repair and Telephone Support Please follow the installation instructions in this guide before calling for service. • U.S. and Canada: 1-970 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 120
- HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 121
Product Specifications Integrated HP NetRAID Controller Specifications Parameter Processor Bus Type Bus Data Transfer Rate BIOS Cache Configuration Firmware Nonvolatile RAM SCSI Controllers SCSI Data Transfer Rate SCSI Bus SCSI Termination Devices per SCSI Channel SCSI Device Types Supported SCSI - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 122
- HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 123
B Worksheets Configuration Worksheets Figures B-1 and B-2 are worksheets for you to record your configuration choices for the hardware and logical drives. We recommend that you log your configuration selections on photocopies of these worksheets. 117 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 124
Appendix B Worksheets Figure B-1. Worksheet A 118 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 125
Appendix B Worksheets Figure B-2. Worksheet B 119 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 126
Appendix B Sample Configuration Worksheet Worksheets Figure B-3. Sample Worksheet A 120 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 127
Appendix B Worksheets Figure B-4. Sample Worksheet B 121 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 128
are samples of Worksheets A and B for an HP NetRAID adapter with ten physical drives, three arrays, and three logical drives. It has a 50% rebuild rate. Physical Arrays and Hot Spares • Array 0 on Channel 0 contains three 9-GB physical drives (SCSI ID # 0, 1, 3). • Array 1 on Channel 1 contains two - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 129
combines storage space in two, three, or four arrays of disk modules into the logical drive's single contiguous storage space. Logical drives of the integrated HP NetRAID controller can span consecutively numbered arrays that each consist of the same number of disk modules. Array spanning promotes - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 130
administrator to replace a failed disk drive in a server without powering down the server and suspending network services. The hot swap module simply pulls out from its slot in the drive cage because all power and cable connections are integrated into the server backplane. Then the replacement hot - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 131
integrated HP NetRAID controller can be configured with up to eight logical drives in any combination of sizes. Configure at least one logical drive for each array. A logical drive Parity is an extra bit added to a byte or word to reveal errors in storage (in RAM or disk) or transmission. It is used - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 132
) is an array of multiple small, independent hard disk drives that yields performance exceeding that of a Single Large Expensive Disk (SLED). A RAID disk subsystem improves I/O performance using only a single drive. The RAID array appears to the host HP NetServer as a single storage unit. I/O is - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 133
were in sequential sectors. Ready State: A condition in which a workable hard drive is neither online nor a hot spare, and therefore is available to SCSI mode. An integrated HP NetRAID controller can manage one or two SCSI channels. SCSI Disk Status: A SCSI disk module (physical drive) can be in - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 134
configured. • Hot Spare: a powered-on, stand-by disk ready for use should a disk fail. • Failed: errors on the disk have caused it to fail, or you have used an HP NetRAID utility to take the drive offline. • Rebuilding: a disk in the process of having data restored from one or more critical logical - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 135
Glossary memory read. Write-back is efficient, because an entry may be written many times in the cache without a disk access. • Write Through: In a write-through cache, data is written to disk at the same time as it is cached. Write-through is simpler than write-back, because an entry that is to be - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 136
- HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 137
, 32 degraded state of logical drive, 125 disable HP NetRAID BIOS, 62 disconnect/reconnect, 3 disk roaming, 3 drag and drop physical drive into existing array, 48 drivers diskette creating, 58 E error messages, 77-109 existing array adding a physical drive to, 48 exiting HP NetRAID Assistant, 56 131 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 138
23 sources of, 5 Information Assistant in HP Online Documentation CD- ROM, 5 initializing logical drives, 55 installation drivers, 58 network operating system (NOS), 60 NOS-specific utilities, 61 overview, 21 Integrated HP NetRAID controller specifications, 115 L Logical Devices box Array Definition - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 139
box HP NetRAID Assistant, 43 physical disk roaming, 3, 126 physical drive, 7 adding to existing array, 48 array numbering, 48 assigning to new array, 47-48 in array, 31 properties, 54 states, 43 physical drives undoing, 54 planning overview, 23 power fail safeguard, 126 power-up error messages - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 140
Arrays and Logical Drives, 41 Step G. Save Configuration and Initialize, 55 Step H. Decide Which HP NetRAID Drivers You Need, 57 Step I. Use the HP NetServer Navigator CD-ROM to Prepare Disks, 58 Step J. Install NOS and HP NetRAID Drivers, 60 Step K. Install NOS-specific Configuration Utility, 61 - HP LH4r | Integrated HP NetRaid Controller Configuration Guide - Page 141
configuration, 57 HP NetRAID Assistant, 42, 99 HP NetRAID Config, 101 HP NetRAID Express Tools, 103 installing NOS-specific, 61 latest versions, 58 V virtual sizing, 51, 123, 128 Index W Wizard. See HP NetRAID Assistant Wizard Worksheet A, 118 Worksheet B, 119 write policy, 128 planning, 36 setting
Integrated HP NetRAID Controller
Configuration Guide
HP Part Number 5967-5210
Printed in June 1998