Hitachi Freedom Storage Lightning 9900 V series User manual

Hitachi Freedom Stora
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Lightning 9900™ V Series
Red Hat®Linux®Configuration Guide

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide iii
© 2002 Hitachi Data Systems Corporation, ALL RIGHTS RESERVED
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This document contains the most current information available at the time of publication.
When new and/or revised information becomes available, this entire document will be
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Red Hat is a registered trademark of Red Hat, Inc.
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Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide iv
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Export of technical data contained in this document may require an export license from the
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Document Revision Level
Revision Date Description
MK-92RD127-0 April 2002 Initial Release
Source Document Revision Level
The following source documents were used to produce this 9900V configuration guide:
 Hitachi DKC310 Disk Subsystem SCSI/Fibre Installation Manual, Red Hat®Linux,
revision 1.1.
 Hitachi Lightning 9900™ V LUN Manager User’s Guide (MK-92RD105)
 Hitachi Lightning 9900™ V Red Hat®Linux®Configuration Guide (MK-92RD105).
Referenced Documents
 Hitachi Lightning 9900™ V Series User and Reference Guide, MK-92RD100.
 Hitachi Lightning 9900™ V Series Remote Console – Storage Navigator User’s Guide,
MK-92RD101.
 Hitachi Lightning 9900™ V Series LUN Management User’s Guide, MK-92RD105.
 Hitachi Lightning 9900™ V Series LUN Expansion (LUSE) and Virtual LVI/LUN User’s
Guide, MK-92RD104.
 Hitachi Lightning 9900™ V Series Hitachi RapidXchange User’s Guide, MK-91RD052.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide v
Preface
The Hitachi Lightning 9900™ V Series Red Hat®Linux®Configuration Guide describes and
provides instructions for installing and configuring the devices on the Lightning 9900™ V
array subsystem for operation with the Red Hat®Linux®operating system. This configuration
guide assumes that:
 the user has a background in data processing and understands direct-access storage
device subsystems and their basic functions,
 the user is familiar with the Lightning 9900™ V array subsystem,
 the user is familiar with the Red Hat®Linux®operating system, including commands,
utilities and file systems.
Note: This document will use the term “9900V” to refer to any 9900V subsystem configured
for UNIX®/PC server operations, including the all-open and multiplatform models.
For further information on the Lightning 9900™ V array subsystem, please refer to the
Hitachi Lightning 9900™ V Series User and Reference Guide (MK-92RD100), or contact your
Hitachi Data Systems account team. The Hitachi Data Systems worldwide web site
(http://www.hds.com) also provides information on the Lightning 9900™ V subsystem and its
features and options.
For further information on Red Hat®Linux®, please consult the user documentation, or
contact Red Hat®Linux®technical support.
Microcode Level
This document revision applies to 9900V microcode version 20-01-XX and higher.
COMMENTS
Please send us your comments on this document: [email protected].
Make sure to include the document title, number, and revision.
Please refer to specific page(s) and paragraph(s) whenever possible.
(All comments become the property of Hitachi Data Systems Corporation.)
Thank you!

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide vi

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide vii
Contents
Chapter 1 Overview of Red Hat®Linux®Configuration........................................................................ 1
1.1 Red Hat®Linux®Configuration..................................................................1
1.2 The Lightning 9900™ V Array Subsystem ......................................................2
1.3 Device Types and Configuration Procedures..................................................3
Chapter 2 Preparing for New Device Configuration ............................................................................. 7
2.1 Configuration Requirements ....................................................................7
2.2 Installing the 9900V Subsystem.................................................................9
2.3 Preparing to Connect the 9900V Subsystem ................................................ 10
2.3.1 Setting the Host Mode for the 9900V Ports ........................................ 10
2.3.2 Configuring the 9900V Fibre-Channel Ports ....................................... 11
2.4 Connecting the 9900V Subsystem ............................................................ 14
2.5 Configuring the Host Fibre-Channel Adapters.............................................. 15
2.6 Verifying Device Recognition ................................................................. 18
Chapter 3 Configuring the New Devices ............................................................................................. 21
3.1 Set the Number of Logical Units.............................................................. 21
3.2 Partitioning Devices ............................................................................ 22
3.3 Creating, Mounting and Verifying the File Systems ....................................... 23
3.3.1 Creating the File Systems ............................................................ 23
3.3.2 Creating the Mount Directories...................................................... 23
3.3.3 Creating the Mount Table ............................................................ 23
3.3.4 Verifying the File System ............................................................. 24
3.3.5 Setting the Auto-Mount Parameters ................................................ 24
Chapter 4 SNMP Remote Subsystem Management............................................................................ 25
Chapter 5 Troubleshooting................................................................................................................... 27
5.1 Troubleshooting ................................................................................. 27
5.2 Calling the Hitachi Data Systems Technical Support Center ............................. 28
Appendix A Acronyms and Abbreviations ............................................................................................. 29

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide viii
List of Figures
Figure 2.1 The Add New Host Group Panel ........................................................ 10
Figure 2.2 LUN Manager/Port Panel, Port Tab .................................................... 12
Figure 2.3 Verifying New Device Recognition ..................................................... 18
Figure 2.4 Verifying Device Files .................................................................... 18
Figure 3.1 Setting the number of LUs .............................................................. 21
Figure 3.2 Creating the Mount Table ............................................................... 23
Figure 3.3 Verifying the File System................................................................ 24
Figure 3.4 Setting the Auto-Mount Parameters ................................................... 24
Figure 4.1 9900V SNMP Environment ............................................................... 25
List of Tables
Table 1.1 9900V Device Specifications for Red Hat®Linux®.....................................4
Table 2.1 Fibre Parameter Settings for the 9900V .............................................. 12
Table 2.2 Fibre Parameter Settings on the 9900V ............................................... 13
Table 2.3 Available AL-PA Values .................................................................. 13
Table 2.4 Requirements for the 9900V Devices .................................................. 15
Table 2.5 Sample SCSI Path Worksheet............................................................ 19
Table 5.1 Troubleshooting........................................................................... 27

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 1
Chapter 1 Overview of Red Hat®Linux®Configuration
1.1 Red Hat®Linux®Configuration
This document describes the requirements and procedures for connecting the Lightning
9900™ V subsystem to a Red Hat®Linux®system and configuring the new Lightning 9900™ V
devices for operation with the Red Hat®Linux®operating system. The Hitachi Data Systems
Customer Service representative performs the physical installation of the 9900V subsystem.
The user prepares for 9900V subsystem installation and configures the new 9900V devices
with assistance as needed from the Hitachi Data Systems representative.
Configuration of the 9900V SCSI disk devices for Red Hat®Linux®includes:
 Setting the host mode and configuring the 9900V fibre-channel ports (see section 2.3).
 Connecting to the 9900V subsystem (see section 2.4).
 Configuring the host fibre-channel adapters (see section 2.5).
 Verifying device recognition (see section 2.6).
 Setting the number of LUs (see section 3.1).
 Partitioning the devices (see section 3.2).
 Creating the file systems (see section 3.3.1).
 Creating the mount directories (see section 3.3.2).
 Creating the mount table (see section 3.3.3).
 Certifying the file system (see section 3.3.4).
 Setting the auto mount procedures (see section 3.3.5).
For further information on Red Hat®Linux®please refer to the Red Hat®Linux®user
documentation, or contact technical support.
Note on the term “SCSI disk”: The 9900V logical devices are defined to the host as SCSI disk
devices, even though the interface is fibre-channel.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 2
1.2 The Lightning 9900™ V Array Subsystem
The Hitachi Lightning 9900™ V RAID subsystem supports concurrent attachment to multiple
UNIX®-based and PC-server platforms. Please contact your Hitachi Data Systems account
team for the latest information on platform support. The 9900V subsystem provides
continuous data availability, high-speed response, scaleable connectivity, and expandable
capacity for PC server and open-system storage. The 9900V subsystem can operate with
multihost applications and host clusters, and is designed to handle very large databases as
well as data warehousing and data mining applications that store and retrieve terabytes of
data.
The Hitachi Lightning 9900™ V subsystem can be configured with fibre-channel, FICON™,
and/or ExSA™ (Extended Serial Adapter™) ports to provide connectivity with S/390®
mainframe hosts as well as open-system hosts. For further information on the 9900V
subsystem, please refer to the Hitachi Freedom Storage™ Lightning 9900™ V User and
Reference Guide (MK-92RD100), or contact your Hitachi Data Systems account team.
For further information on the 9900V subsystem, please refer to the Hitachi Lightning 9900™
V Series User and Reference Guide (MK-92RD100), or contact your Hitachi Data Systems
account team, or visit Hitachi Data Systems online (http://www.hds.com).
Note on the term “SCSI disk”: The 9900V logical devices are defined to the host as SCSI disk
devices, even though the interface is fibre-channel.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 3
1.3 Device Types and Configuration Procedures
The 9900V subsystem allows the following types of logical devices (LDEVs) to be installed
and configured for operation with the Red Hat®Linux®operating system. Table 1.1 lists the
device specifications for the 9900V devices.
OPEN-xDevices The standard OPEN-xlogical units (LUs) (e.g., OPEN-3, OPEN-9) are disk
devices of predefined sizes. The 9900V subsystem currently supports OPEN-3, OPEN-9, OPEN-
E, and OPEN-L devices. Please contact your Hitachi Data Systems account team for the latest
information on supported LU types.
LUSE Devices (OPEN-x*n) The LUSE devices are combined LUs that can be from 2 to 36
times larger than standard OPEN-xLUs. The Logical Unit Size Expansion (LUSE) feature of the
9900V subsystem enables you to configure these custom-size devices. LUSE devices are
designated as OPEN-x*n, where xis the LU type (e.g., OPEN-9*n) and 2 ≤n ≤36. For
example, a LUSE device created from ten OPEN-3 LUs would be designated as an OPEN-3*10
disk device. This capability enables the server host to combine logical devices and access
the data stored on the 9900V subsystem using fewer LU numbers (LUNs). For further
information on the LUSE feature, please refer to the Hitachi Lightning 9900™ V Series LUN
Expansion and Virtual LVI/LUN User’s Guide (MK-92RD104).
VLL Devices (OPEN-xVLL) The Virtual LVI/LUN (VLL) feature of the 9900V subsystem
enables you to “slice up” a single LU into several smaller LUs to best fit your application
needs and improve host access to frequently used files. For further information on the
Virtual LVI/LUN feature, please refer to the Hitachi Lightning 9900™ V Series LUN Expansion
(LUSE) and Virtual LVI/LUN User’s Guide (MK-92RD104). Note: The OPEN-L LU does not
support Virtual LVI/LUN.
VLL LUSE Devices (OPEN-x*n VLL) The VLL LUSE devices combine Virtual LVI/LUN devices
(instead of standard OPEN-xLUs) into LUSE devices. The Virtual LVI/LUN feature is used first
to create custom-size devices, and then the LUSE feature is used to combine (concatenate)
these Virtual LVI/LUN devices. The user can combine from 2 to 36 Virtual LVI/LUN devices
into one VLL LUSE device. For example, an OPEN-3 LUSE volume that was created from ten
OPEN-3 Virtual LVI/LUN volumes would be designated as an OPEN-3*10 VLL device. Note: The
OPEN-L LU does not support Virtual LVI/LUN.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 4
Table 1.1 9900V Device Specifications for Red Hat®Linux®
Device Type
(Note 1)
Category Vendor
Name
Product Name # of Blocks
(512-byte blk)
Sector Size
(bytes)
# of Data
Cylinders
# of
Heads
# of Sectors
per Track
Capacity
MB (Note 2)
OPEN-3 Disk HITACHI OPEN-3 4806720 512 3338 15 96 2347
OPEN-9 Disk HITACHI OPEN-9 14423040 512 10016 15 96 7042
OPEN-E Disk HITACHI OPEN-E 28452960 512 19759 15 96 13893
OPEN-L Disk HITACHI OPEN-L 71192160 512 49439 15 96 34761
OPEN-3*n Disk HITACHI OPEN-3*n 4806720*n 512 3338*n 15 96 2347*n
OPEN-9*n Disk HITACHI OPEN-9*n 14423040*n 512 10016*n 15 96 7042*n
OPEN-E*n Disk HITACHI OPEN-E*n 28452960*n 512 19759*n 15 96 13893*n
OPEN-L*n
(n=2 to 14)
Disk HITACHI OPEN-L*n 71192160*n 512 49439*n 15 96 34761*n
OPEN-3 VLL Disk HITACHI OPEN-3-CVS Note 3 512 Note 4 15 96 Note 5
OPEN-9 VLL Disk HITACHI OPEN-9-CVS Note 3 512 Note 4 15 96 Note 5
OPEN-E VLL Disk HITACHI OPEN-E-CVS Note 3 512 Note 4 15 96 Note 5
OPEN-3*n VLL Disk HITACHI OPEN-3*n-CVS Note 3 512 Note 4 15 96 Note 5
OPEN-9*n VLL Disk HITACHI OPEN-9*n-CVS Note 3 512 Note 4 15 96 Note 5
OPEN-E*n VLL Disk HITACHI OPEN-E*n-CVS Note 3 512 Note 4 15 96 Note 5

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 5
Note 1: The availability of a specific 9900V device type depends on the level of microcode
installed on the 9900V subsystem.
Note 2: The device capacity can sometimes be changed by the BIOS or host adapter board.
These device capacities are calculated based on 1 MB = 10242bytes rather than 10002bytes.
Note 3: The number of blocks for a Virtual LVI/LUN volume is calculated as follows:
# of blocks = (# of data cylinders) ×(# of heads) ×(# of sectors per track)
Example: For an OPEN-3 VLL volume with capacity = 37 MB:
# of blocks = (53 cylinders) ×(15 heads) ×(96 sectors per track) = 76320
Note 4: The number of data cylinders for a Virtual LVI/LUN volume (including VLL LUSE
volumes) is calculated as follows:
(↑…↑means that the value should be rounded up to the next integer)
 The number of data cylinders for an OPEN-* VLL volume =
# of cylinders = ↑(capacity (MB)) ×1024/720 ↑
Example: For an OPEN-3 VLL volume with capacity = 37 MB:
# of cylinders = ↑37 ×1024/720↑= ↑52.62↑(rounded up to next integer) = 53 cylinders
 The number of data cylinders for a 3390-3A/C VLL volume =
# of cylinders = (number of cylinders) + 9
 The number of data cylinders for a 3390-3B VLL volume =
# of cylinders = (number of cylinders) + 7
Note 5: The size of an OPEN-xVLL volume is specified by capacity in MB, not by number of
cylinders. The user specifies the volume size.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 6

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 7
Chapter 2 Preparing for New Device Configuration
Before you can configure the 9900V, you must take the following steps:
 Installing the 9900V subsystem (see section 2.2).
 Setting the host mode and configuring the fibre-channel ports (see section 2.3).
 Connecting the 9900V subsystem (see section 2.4).
 Configuring the host fibre-channel adapters (see section 2.5).
 Verifying device recognition (see section 2.6).
2.1 Configuration Requirements
The requirements for 9900V Red Hat®Linux®configuration are:
 Hitachi Lightning 9900™ V Series subsystem, all-open or multiplatform configuration.
– The 9900V LUN Manager software is used to configure the fibre-channel (FC) ports. If
the remote LUN Manager feature is not installed, please contact your Hitachi Data
Systems account team for information on LUN and fibre-channel configuration
services.
Note: The availability of 9900V features and devices depends on the level of
microcode installed on the 9900V subsystem.
– The 9900V LUN Manager software is used to configure the fibre-channel (FC) ports.
For additional instructions, please refer to the Hitachi Lightning 9900™ V Series LUN
Manager User’s Guide (MK-92RD105). If the Remote LUN Manager software is not
installed, the Hitachi Data Systems representative can configure the fibre-channel
ports for you using the SVP of the subsystem. Please contact your Hitachi Data
Systems account team for further information on LUN fibre-channel configuration
services.
 Red Hat®Linux®PC server. Please refer to the Red Hat®Linux®user documentation for
PC server hardware and configuration requirements.
 Red Hat®Linux®operating system, versions 6.0 and 6.2.
Note: Hitachi Data Systems plans to support future releases of Red Hat®Linux®. This
document will be updated as needed to cover version-specific information.
 Root (superuser) login access to the host system.
Continued on the next page

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 8
 Fibre-channel adapters. Make sure to install all utilities/tools for the adapter. Do not
install/load the driver(s) yet (see below). For information on driver requirements for the
adapters, please refer to the user documentation for the adapter or contact the vendor.
– The 9900V subsystem supports: 2 Gbps fibre-channel interface, including shortwave
non-OFC (open fibre control) optical interface and multimode optical cables with LC
connectors; and 1 Gbps fibre-channel interface, including shortwave non-OFC optical
interface and multimode optical cables with SC connectors. Do not connect any OFC-
type fibre-channel interface to the 9900V subsystem.
– For information on supported FC adapters (FCAs), optical cables, hubs, and fabric
switches, please contact your Hitachi Data Systems account team or the Hitachi Data
Systems Support Center (see section 5.2). For other information on supported fibre-
channel adapters and driver requirements, please refer to the user documentation
for the adapter or contact the vendor.
 Drivers. Do not install/load the driver(s) yet. Section 2.5 provides instructions on
loading the drivers with the correct parameters and options for operation with the 9900V
subsystem.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 9
2.2 Installing the 9900V Subsystem
The 9900V subsystem comes with all hardware and cabling required for installation.
Installation of the 9900V subsystem involves the following activities:
1. Hardware installation. The Hitachi Data Systems representative performs this activity,
which includes:
– Assembling all hardware and cabling.
– Loading the latest microcode and SVP updates for full fibre support.
– Installing and formatting the logical devices (LDEVs) using the SVP. (This requires
complete LDEV configuration information from the user, including the desired
number of OPEN-x, LUSE, Virtual LVI/LUN and VLL LUSE devices.)
– Installing the fibre-channel adapters and cabling. Note: The total fibre cable length
attached to each fibre-channel adapter must not exceed 500 meters (1,640 feet). Do
not install/de-install fibre-channel cabling while Red Hat®Linux®is active. This can
cause the system to hang. Always confirm that Red Hat®Linux®is shut down before
installing/de-installing fibre cabling.
– Configuring the 9900V fibre port topology. The fibre topology parameters for each
9900V fibre-channel port depend on the type of device to which the 9900V port is
connected, and the type of port. Determine the topology parameters supported by
the device, and set your topology accordingly (see sections 2.3 and 2.5).
Important: When the CHT is replaced, you must pull out all fibre cables that are
connected to it.
2. LUN Manager installation. The user or Hitachi Data Systems representative can perform
this activity. You will use the LUN Manager software to configure the 9900V fibre-
channel ports. For instructions on installing the LUN Manager software, please refer to
the Hitachi Freedom Storage™ Lightning 9900™ V Remote Console - Storage Navigator
User’s Guide (MK-92RD101). For further information on LUN Manager, please refer to the
Hitachi Freedom Storage™ Lightning 9900™ V LUN Manager User’s Guide (MK-92RD105).
Note: If the remote LUN Manager feature is not installed, the Hitachi Data Systems
representative can configure fibre-channel ports for you using the SVP of the subsystem.
Please contact your Hitachi Data Systems account team for further information on fibre-
channel configuration services.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 10
2.3 Preparing to Connect the 9900V Subsystem
2.3.1 Setting the Host Mode for the 9900V Ports
The 9900V ports have special modes that must be set for the connected operating system.
Note: The required host mode setting for 9900V Red Hat®Linux®operations is 00. Use the
LUN Manager software to ensure that the host mode for each fibre port connected to the
Red Hat®Linux®system is 00.
Figure 2.1 The Add New Host Group Panel

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 11
2.3.2 Configuring the 9900V Fibre-Channel Ports
You need to configure the 9900V fibre-channel ports to define the fibre topology parameters
(e.g., arbitrated loop) and port addresses. The LUN Manager software enables you to
configure the 9900V fibre-channel ports. For additional instructions, please refer to the
Hitachi Lightning 9900™ V Series LUN Manager User’s Guide (MK-92RD105). If the Remote
LUN Manager software is not installed, the Hitachi Data Systems representative can
configure the fibre-channel ports for you using the SVP of the subsystem. Please contact
your Hitachi Data Systems account team for further information on LUN fibre-channel
configuration services.
Fibre topology. Figure 2.1shows the LUN Manager/Port panel, Port Tab which shows the
port name, port type, host speed, port address (Loop ID), fabric switch (on or off) and
topology (type of connection). Figure 2.2 explains the fibre-parameter settings, and Table
2.2 explains the settings on this panel. You will select the appropriate settings for each
9900V FC port based on the device to which the port is connected. Determine the topology
parameters supported by the device, and set your topology accordingly. The type of 9900V
port is also important.
Port address. In fabric environments, the port addresses are assigned automatically by
fabric switch port number and are not controlled by the 9900V port settings. In arbitrated
loop environments, the port addresses are set by entering an AL-PA (arbitrated-loop physical
address, or loop ID). Table 2.3 shows the available 9900V AL-PA values, which range from 01
to EF. Fibre-channel protocol uses the AL-PAs to communicate on the fibre-channel link, but
the SCSI software driver of the platform host adapter translates the AL-PA value assigned to
the 9900V port into a SCSI TID.
Note: The AL-PAs should be unique for each device on the loop to avoid conflicts.

Hitachi Lightning 9900™ V Series Red Hat® Linux®Configuration Guide 12
Table 2.1 Fibre Parameter Settings for the 9900V
Fabric Parameter Connection Parameter Provides:
ON FC-AL Not supported
ON Point-to-Point Not supported
OFF FC-AL NL-port (private arbitrated loop)
OFF Point-to-Point Not supported
Topology parameters. Use the LUN Manager software to define the topology parameters and
port ID for each fibre-channel port. For additional instructions, please refer to the Hitachi
Lightning 9900™ V Series LUN Manager User’s Guide (MK-92RD105). Your Hitachi Data
Systems representative can also configure the fibre-channel ports for you using the SVP of
the subsystem. Please contact your Hitachi Data Systems account team for further
information on LUN fibre-channel configuration services. When you are finished configuring
the fibre-channel ports, you can exit the LUN Manager software.
Note: The 9900V subsystem supports up to 256 LUs per fibre-channel port, but connectivity
with Linux®systems is limited to 16 LUs per FC port.
Figure 2.2 LUN Manager/Port Panel, Port Tab