Overland Storage SnapSAN S3000 User manual

Overland
Storage SnapSAN™Path Manager Linux
User Guide
S3000/S5000
April 2013
10400424-002

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SnapSAN Path Manager Linux User Guide
©2013 Overland Storage, Inc. All rights reserved.
Overland®, Overland Data®, Overland Storage®, ARCvault®, DynamicRAID®, GuardianOS® (EU), LibraryPro®, LoaderXpress®, Multi-
SitePAC®, NEO®, NEO Series®, PowerLoader®, Protection OS®, REO®, REO 4000®, REO Series®, Snap Appliance®, Snap Care® (EU),
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All other brand names or trademarks are the property of their respective owners.
The names of companies and individuals used in examples are fictitious and intended to illustrate the use of the software. Any resemblance to
actual companies or individuals, whether past or present, is coincidental.
PROPRIETARY NOTICE
All information contained in or disclosed by this document is considered proprietary by Overland Storage. By accepting this material the recipient
agrees that this material and the information contained therein are held in confidence and in trust and will not be used, reproduced in whole or in
part, nor its contents revealed to others, except to meet the purpose for which it was delivered. It is understood that no right is conveyed to
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Overland Storage assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of this manual, nor for any problem that
might arise from the use of the information in this manual.

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Preface
This user guide explains how to use Path Management - Linux to implement path
multiplexing between each server and disk array unit in a system. If a fault occurs on
a path, the used path can automatically be switched to another path. In addition, the
concurrent use of multiple paths can distribute the load to individual paths. This
guide assumes that you are familiar with computer hardware, data storage, and
network administration terminology and tasks. It also assumes you have basic
knowledge of Internet SCSI (iSCSI), Serial-attached SCSI (SAS), Serial ATA (SATA),
Storage Area Network (SAN), and Redundant Array of Independent Disks (RAID)
technology.
This guide assumes that you are familiar with computer hardware, data storage, and
network administration terminology and tasks. It also assumes you have basic
knowledge of Internet SCSI (iSCSI), Serial-attached SCSI (SAS), Serial ATA (SATA),
Storage Area Network (SAN), and Redundant Array of Independent Disks (RAID)
technology.
Product Documentation and Firmware Updates
Overland Storage SnapSAN product documentation and additional literature are
available online, along with the latest release of the SnapSAN 3000/5000 software.
Point your browser to:
http: //docs.overlandstorage.com/snapsan
Follow the appropriate link to download the latest software file or document. For
additional assistance, search at http: //support.overlandstorage.com.
Overland Technical Support
For help configuring and using your SnapSAN 3000/5000, search for help at:
http: //support.overlandstorage.com/kb
You can email our technical support staff at [e-mail] or get
additional technical support information on the Contact Us web page:
http: //www.overlandstorage.com/company/contact-us/

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For a complete list of support times depending on the type of coverage, visit our web site at:
http: //support.overlandstorage.com/support/overland_care.html
Conventions
This user guide exercises several typographical conventions:
Information contained in this guide has been reviewed for accuracy, but not for product
warranty because of the various environments, operating systems, or settings involved.
Information and specifications may change without notice.
Convention Description & Usage
Boldface Words in a boldface font (Example) indicate items to select such as
menu items or command buttons.
Ctrl-Alt-r This type of format details the keys you press simultaneously. In this
example, hold down the Ctrl and Alt keys and press the rkey.
NOTE A Note indicates neutral or positive information that emphasizes or
supplements important points of the main text. A note supplies
information that may apply only in special cases—for example,
memory limitations or details that apply to specific program versions.
IMPORTANT An Important note is a type of note that provides information
essential to the completion of a task or that can impact the product
and its function.
CAUTION A Caution contains information that the user needs to know to avoid
damaging or permanently deleting data or causing physical damage
to the hardware or system.
WARNING A Warning contains information concerning personal safety. Failure
to follow directions in the warning could result in bodily harm or
death.
Menu Flow
Indicator
(>)
Words in bold font with a greater than sign between them indicate
the flow of actions to accomplish a task. For example, Setup >
Passwords > User indicates that you should press the Setup button,
then the Passwords button, and finally the User button to accomplish
a task.

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Contents
Preface
Chapter 1 - Path Manager Linux
Overview ..................................................................................................................................................... 1-1
What Is PathManager? ........................................................................................................................ 1-1
Handling of Path Faults .................................................................................................................. 1-1
Load Distribution Function ............................................................................................................. 1-1
Structure of PathManager ................................................................................................................... 1-2
PathManager Driver ....................................................................................................................... 1-2
Pathmanager Operation Commands (mkdd, spscmd, spsadmin, spsconfig) ....................... 1-2
Path patrol daemon (dd_daemon) ............................................................................................. 1-2
Multi Path System ............................................................................................................................ 1-2
System Configuration ................................................................................................................................. 1-3
Single Server Configuration ................................................................................................................. 1-3
Multiple Server Configuration .............................................................................................................. 1-4
Cluster Configuration ........................................................................................................................... 1-4
Chapter 2 - Installation
Setup ............................................................................................................................................................ 2-1
Prepare to Install ................................................................................................................................... 2-6
Installing PathManager RPM Package .............................................................................................. 2-7
Installation by Installer .................................................................................................................... 2-7
Manual Installation ......................................................................................................................... 2-8
Shifting to a PathManager Environment .................................................................................... 2-14
Starting Operation .................................................................................................................................... 2-15
Checking the Condition .................................................................................................................... 2-15
RHEL6 .............................................................................................................................................. 2-15
RHEL4, RHEL5, SLES10 ..................................................................................................................... 2-16
PathManager Uninstallation .................................................................................................................... 2-18
Shifting to a Non-PathManager Environment ................................................................................. 2-18
Uninstalling PathManager RPM Package .................................................................................. 2-19
Uninstallation by Uninstaller ............................................................................................................... 2-19
Manual Uninstallation ......................................................................................................................... 2-20
Updating PathManager .......................................................................................................................... 2-23
Chapter 3 - Functions
Limit of Paths and Disks .............................................................................................................................. 3-1
Load Distribution Function ................................................................................................................... 3-1
Load Distribution ......................................................................................................................................... 3-2
Static Load Distribution (FailoverOnly) ............................................................................................... 3-2

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Static load Distribution (lbstatic) ......................................................................................................... 3-2
Dynamic Load Distribution .................................................................................................................. 3-2
Round Robin Mode (RoundRobin) ............................................................................................... 3-3
Least I/O Size Mode (LeastSectors) ............................................................................................... 3-3
Configuration File ....................................................................................................................................... 3-3
Creating the Configuration File .......................................................................................................... 3-3
File Format ............................................................................................................................................. 3-4
Changing Configuration of PathManager ........................................................................................ 3-6
Changing the Path Monitoring Interval ............................................................................................. 3-8
Changing Environment of PathManager ........................................................................................ 3-10
Addition and Deletion of LUN ........................................................................................................... 3-10
Initializing Configuration of PathManager ................................................................................. 3-14
Log Information ......................................................................................................................................... 3-15
System Log ........................................................................................................................................... 3-15
System Log Messages ................................................................................................................... 3-16
proc File System ............................................................................................................................ 3-19
Device information ....................................................................................................................... 3-19
Path Status Display ........................................................................................................................ 3-25
Logical Unit .......................................................................................................................................... 3-26
Displaying Detail Information ("-v" option) ................................................................................. 3-27
Path Patrol Daemon ........................................................................................................................... 3-32
Basic Operation of the Path Patrol Daemon ............................................................................. 3-32
Script for Operating the Path Control Daemon ........................................................................ 3-32
Arguments of the Path Patrol Daemon Operation Script ........................................................ 3-32
Enable/Disable Setting of Path Monitoring ................................................................................ 3-33
Messages ....................................................................................................................................... 3-33
Device Files ................................................................................................................................................ 3-33
Naming Rules ...................................................................................................................................... 3-34
Available Maximum number of LUN ........................................................................................... 3-34
Maximum number of LUN ............................................................................................................ 3-34
Intermittent Error Monitoring Function .............................................................................................. 3-34
Getting Error History Function .................................................................................................................. 3-37
Details of Output ........................................................................................................................... 3-38
Chapter 4 - Operation
Operation in Normal State ........................................................................................................................ 4-1
When the Fault Occurs .............................................................................................................................. 4-1
Restoration by Rebooting the System ................................................................................................ 4-4
Restoration using Operation Commands .......................................................................................... 4-4
Restoration by Scanning All Paths ..............................................................................................4-10
Restoration by iscsiadm Command ........................................................................................... 4-14
Chapter 5 - Cautions and Restrictions
Cautions ...................................................................................................................................................... 5-1
Restrictions ................................................................................................................................................... 5-1
Appendix A - Commands
Commands of Function Version 5.1.0 or Later ........................................................................................A-1
mkdd command .............................................................................................................................A-1
spsadmin command ......................................................................................................................A-1
Command of Function Version Less than 5.1.0 .......................................................................................A-7

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mkdd command ..................................................................................................................................A-7
spscmd command ...............................................................................................................................A-7
Appendix B - Information Collection
Appendix C - Cluster Mode Setup
Enable/Disable Cluster Mode .................................................................................................................. C-1
How to Enable the Cluster Mode ...................................................................................................... C-1
How to Disable the Cluster Mode ...................................................................................................... C-1
Appendix D - Application Servers
Application Servers X 1.0 to 3.0 / SE Ver3.1 .............................................................................................D-1
Updating Server1/Server2 ....................................................................................................................D-2
Appendix E - LVM Setup
Adding/Removing PathManager Devices .............................................................................................. E-1
Adding PathManager Devices to LVM ..............................................................................................E-1
Removing PathManager Devices from LVM ..................................................................................... E-4
Appendix F - kdump Setup
How to Set up kdump ................................................................................................................................ F-1
Red Hat Enterprise Linux 5/6 .................................................................................................................F-1
Setting up kdump with a PathManager Device ................................................................................F-1
Resetting the kdump setting ...........................................................................................................F-2
SUSE Linux Enterprise Server 10 .................................................................................................................. F-3
Setting up kdump with a PathManager device ................................................................................F-3
Resetting the kdump setting ...........................................................................................................F-6
Appendix G - Error Messages
Index

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Chapter 1
Path Manager Linux
Overview
PathManager is a software product for implementing path multiplexing between each server
and disk array unit in a system in which a Disk Array Subsystem is used. If a fault occurs on
a path, the used path can automatically be switched to another path. The concurrent use of
multiple paths can distribute the load to individual paths.
This chapter gives an overview of PathManager, and describes hardware and software
configurations and the other basic items and features of PathManager.
What Is PathManager?
Needless to say, to configure a SAN system, availability is important and the availability
greatly depends on the disk array units. Each disk array unit may become one of main faulty
locations in a system.
For this reason, many methods have been worked out and used to reduce the fault
occurrence rate for disk array units and smoothly recover from a fault. The methods include
RAID disk, Hot Spare, and replication.These solutions are effective only for media faults,
however. If a fault occurs in a host bus adapter, controller, or physical path (such as a fibre
channel cable or switch) between a server and a disk array unit, system operation cannot be
continued only with the redundancy of spindles. This is because there is no problem with
data in the disk array units, but the data cannot be accessed. Any disk array unit that is
proud of its strong position is helpless against a path fault.
Handling of Path Faults
PathManager provides an infrastructure to eliminate weaknesses lurking between a server
and a disk array unit in a system using path multiplexing.
If a fault occurs on a path and any access to the disk array unit is disabled during system
operation, PathManager detects the fault and switches the active path from the path on
which the fault occurs to another normal path to continue access to the disk array unit. The
path switching causes no I/O loss. The application can continue processing without
considering the occurrence of any path fault.
Load Distribution Function
PathManager has a load distribution function which uses the multiplexed paths to distribute
the load to individual paths. To make the most of the features, one static load distribution
mode and two dynamic load distribution modes, a total of three load distribution modes, are
available. You can use the load distribution function for more efficient access.

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Structure of PathManager
PathManager runs on a server like Linux and monitors the path between the HBA (Host Bus
Adapter) or NIC (Network Interface Card) on the server and the HP (Host Port) on the disk
array.
PathManager consists of the following modules:
PathManager Driver
This is a group of drivers that form the core of PathManager. It controls basic functions of
PathManager such as multiplexed paths and load balancing.
Pathmanager Operation Commands (mkdd, spscmd, spsadmin, spsconfig)
Commands for setting operation of PathManager. All operation related to PathManager
shall be executed with these commands.
Path patrol daemon (dd_daemon)
Path patrol daemon automatically monitors the status of each path. It issues a monitoring
request to each path at the specified intervals.
Multi Path System
Each disk array is recognized as a device file named /dev/ddX (X indicates a unit name, a, b,
c,...) by the OS. If an unrecoverable fault occurs on the multi path (in the HBA/NIC,
FC/SAS/LAN cable, or disk array controller) during an I/O request from an application to
/dev/ddX, the PathManager driver automatically switches the active path (*1) to the
alternate path to continue I/O processing (Failover).
All fault messages are output to the system log. The path patrol daemon monitors /proc file
system which is updated by PathManager driver. And the path patrol daemon directs auto
repair (Failback) after the replacement of the faulty device.

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Figure 1-1: Multiplex SCSI Path System
The active path is the path that can currently perform I/O processing. The alternate path is
the path to be switched and used as the active path when a fault occurs on the active path.
System Configuration
Examples of basic configurations of systems on which PathManager is installed are shown
below.
Single Server Configuration
In this system configuration, a server is directly connected to a server. This configuration is
most typical in comparatively small systems.

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Figure 1-2: Single Server Configuration
Multiple Server Configuration
In this configuration, multiple servers are directly connected to a Overland. This
configuration is used in a system in which multiple servers for different operations share a
comparatively large Overland. Exclusive control must be exercised over the logical units
used by each server using AccessControl or another component.
Figure 1-3: Multi Server Configuration
Cluster Configuration
An example of a cluster system configuration is shown below. An FC switch is installed
between each server and a SnapSAN S3000/35000 to show the same logical unit from
multiple servers.

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Figure 1-4: Cluster Configuration

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Chapter 2
Installation
Setup
Before starting the setup of PathManager, check the following items:
1. Depending on the connection to a disk array, the following setting has been finished.
[FC/SAS connection]
•The Fibre Channel (FC) driver or the Serial Attached SCSI (SAS) is set up according to
the HBA setup manual.
(You do not have to set up the driver again if you are using the FC driver or SAS driver
supplied with your OS.)
[iSCSI connection]
•The setup of iSCSI initiator has been finished.
The recommendation timeout value of the iSCSI initiator is:.
"/etc/iscsi/iscsid.conf"
node.session.timeo.replacement_timeout = 30 (default: 120)
2. Setup the FC-switch when your system uses FC-switch.
3. Cross Call of a disk array is set to "On" if any.
4. A server recognizes a logical disk (unit) of a disk array unit. And the connection
between the server and the disk array unit is redundant.
5. In the case you use LVM (Logical Volume Manager), the distribution and kernel
version must be one of shown below.
•Red Hat Enterprise Linux AS/ES 4 (Kernel-2.6.9-42.EL) (IA32/EM64T) or later
•Red Hat Enterprise Linux 5 (Kernel-2.6.18-53.el5) (IA32/EM64T) or later
•Red Hat Enterprise Linux 5 Advanced Platform (Kernel-2.6.18-53.el5) (IA32/EM64T)
or later
•Red Hat Enterprise Linux 6 (Kernel-2.6.32-131.0.15.el6) (IA32/EM64T) or later
PathManager does not support LVM when you use the Red Hat Enterprise Linux
whose kernel version is earlier than above. And if you use SAN-Boot, PathManager
does not support a LVM disk containing an OS area.
6. In the case you use FC connections and iSCSI connections concurrently, the
distribution and kernel version must be one of shown below.
•Red Hat Enterprise Linux 5 (kernel-2.6.18-164.el5) (IA32/EM64T) or later
•Red Hat Enterprise Linux 5 Advanced Platform (kernel-2.6.18-164.el5) (IA32/EM64T)
or later
•Red Hat Enterprise Linux 6 (kernel-2.6.32-131.0.15.el6) (IA32/EM64T) or later
•SUSE Linux Enterprise Server 10 (kernel-2.6.16.60-0.57.1) (IA32/EM64T) or later

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7. In the case you use the Overland Storage which has both FC and iSCSI connections,
the distribution and kernel version must be one of shown below.
•Red Hat Enterprise Linux 5 (kernel-2.6.18-194.el5) (IA32/EM64T) or later
•Red Hat Enterprise Linux 5 Advanced Platform (kernel-2.6.18-194.el5) (IA32/EM64T)
or later
•Red Hat Enterprise Linux 6 (kernel-2.6.32-131.0.15.el6) (IA32/EM64T) or later
8. In the case you use SAS connections and FC/iSCSI connections concurrently, the
function version of PathManager must be 5.0.5 or later. And the distribution and
kernel version must be one of shown below.
•Red Hat Enterprise Linux 5 (kernel-2.6.18-274.el5) (IA32/EM64T) or later
•Red Hat Enterprise Linux 5 Advanced Platform (kernel-2.6.18-274.el5) (IA32/EM64T)
or later
•Red Hat Enterprise Linux 6 (kernel-2.6.32-131.0.15.el6) (IA32/EM64T) or later
List of Installation CD Files

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Directory/File name Description
Linux
`-- RPMS
|-- RHEL4
|-- RHEL5
| |-- 5.1
| |-- 5.2
| |-- 5.3
| |-- 5.4
| |-- 5.5
| |-- 5.6
| |-- 5.7
| `-- 5.8
| |-- IA32
| | |-- sps-driver-E-5.0.9-2.6.18.308.el5.i686.rpm
| | `-- sps-utils-5.0.4-0.el5.i686.rpm
| `-- EM64T
| |-- sps-driver-E-5.0.9-2.6.18.308.el6.x86_64.rpm
| `-- sps-utils-5.0.4-0.el5.x86_64.rpm
|-- RHEL6
| |-- 6.1
| `-- 6.2
| |-- IA32
| | |-- sps-driver-E-5.1.6-2.6.32.220.4.2.el6.i686.rpm
| | `-- sps-utils-5.1.4-0.el6.i686.rpm
| `-- EM64T
| |-- sps-driver-E-5.1.6-2.6.32.220.4.2.el6.x86_64.rpm
| `-- sps-utils-5.1.4-0.el6.x86_64.rpm
`-- SLES10
|-- SP2
`-- SP3
|-- IA32
| |-- sps-driver-E-5.0.3-2.6.16.60.0.57.1.i586.rpm
| |-- sps-kdump-E-5.0.3-2.6.16.60.0.57.1.i586.rpm
| `-- sps-utils-5.0.2-0.sles10.i586.rpm
`-- EM64T
|-- sps-driver-E-5.0.3-2.6.16.60.0.57.1.x86_64.rpm
|-- sps-kdump-E-5.0.3-2.6.16.60.0.57.1.x86_64.rpm
`-- sps-utils-5.0.2-0.sles10.x86_64.rpm
RPM files
Packages of
PathManager (*1)
Linux
`-- doc
|-- IS202E.pdf
`-- ISRX203E.pdf
PathManagerUser's
Manual (PDF file)
PathManagerInstall
Guide (PDF file)

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*1: Only some of the files of PathManager are described.
*2: RPM files of Ver. 4.2.1 or later are separated according to the functions as follows;
sps-utils (utilities), sps-driver (driver), and sps-kdump (kernel dump).
*3: "sps-mcopt" is the package for the cooperation with RENS. It is not need if the Path-
Manager do not cooperate with RENS.
*4: The installation using installer is supported on the following environment.
•Red Hat Enterprise Linux 5.4 (kernel-2.6.18-164.el5) or later
•Red Hat Enterprise Linux 6.1 (kernel-2.6.32-131.0.15.el6) or later
•SUSE Linux Enterprise Server SP3 (kernel-2.6.16.60-0.54.5) or later.
Linux
`-- RPMS
|-- RHEL5
| |-- 5.3
| | `-- EM64T
| | |-- sps-driver-E-4.2.4-2.6.18.128.el5.x86_64.rpm
| | |-- sps-mcopt-1.1.0-0.x86_64.rpm (*3)
| | `-- sps-utils-4.2.2-1.x86_64.rpm
| `-- 5.6
| `-- EM64T
| |-- sps-driver-E-5.0.3-2.6.18.238.9.1.el5.x86_64.rpm
| |-- sps-mcopt-1.1.1-0.el5.x86_64.rpm(*3)
| `-- sps-utils-5.0.2-1.el5.x86_64.rpm
`-- RHEL6
|-- 6.1
`-- 6.2
`-- EM64T
|-- sps-driver-E-5.1.5-2.6.32.220.0.15.el6.x86_64.rpm
|-- sps-mcopt-1.2.0-0.el6.x86_64.rpm(*3)
`-- sps-utils-5.1.4-0.el6.x86_64.rpm
For Scalable HA
Servers
Linux
`-- doc
|-- IS202E.pdf
`-- ISRX203E.pdf
PathManagerUser's
Manual (PDF file)
PathManagerInstall
Guide (PDF file)
readme.txt
filelist.txt
gpl.txt
install.sh
install.txt
installer (*4)
Directory/File name Description

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Directory/File name Description
Linux
`-- RPMS
|-- RHEL4
|-- RHEL5
| |-- 5.1
| |-- 5.2
| |-- 5.3
| |-- 5.4
| |-- 5.5
| |-- 5.6
| |-- 5.7
| `-- 5.8
| |-- IA32
| | |-- sps-driver-E-5.0.9-2.6.18.308.el5.i686.rpm
| | `-- sps-utils-5.0.4-0.el5.i686.rpm
| `-- EM64T
| |-- sps-driver-E-5.0.9-2.6.18.308.el6.x86_64.rpm
| `-- sps-utils-5.0.4-0.el5.x86_64.rpm
|-- RHEL6
| |-- 6.1
| `-- 6.2
| |-- IA32
| | |-- sps-driver-E-5.1.6-2.6.32.220.4.2.el6.i686.rpm
| | `-- sps-utils-5.1.4-0.el6.i686.rpm
| `-- EM64T
| |-- sps-driver-E-5.1.6-2.6.32.220.4.2.el6.x86_64.rpm
| `-- sps-utils-5.1.4-0.el6.x86_64.rpm
`-- SLES10
|-- SP2
`-- SP3
|-- IA32
| |-- sps-driver-E-5.0.3-2.6.16.60.0.57.1.i586.rpm
| |-- sps-kdump-E-5.0.3-2.6.16.60.0.57.1.i586.rpm
| `-- sps-utils-5.0.2-0.sles10.i586.rpm
`-- EM64T
|-- sps-driver-E-5.0.3-2.6.16.60.0.57.1.x86_64.rpm
|-- sps-kdump-E-5.0.3-2.6.16.60.0.57.1.x86_64.rpm
`-- sps-utils-5.0.2-0.sles10.x86_64.rpm
RPM files
Packages of
PathManager (*1)
Linux
`-- doc
|-- IS202E.pdf
`-- ISRX203E.pdf
PathManager User's
Manual (PDF file)
PathManager Install
Guide (PDF file)

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*1: Only some of the files of PathManager are described.
*2: RPM files of Ver. 4.2.1 or later are separated according to the functions as follows; sps-
utils (utilities), sps-driver (driver), and sps-kdump (kernel dump).
*3: "sps-mcopt" is the package for the cooperation with RENS. It is not need if the
PathManager do not cooperate with RENS.
*4: The installation using installer is supported on the following environment.
•Red Hat Enterprise Linux 5.4 (kernel-2.6.18-164.el5) or later
•Red Hat Enterprise Linux 6.1 (kernel-2.6.32-131.0.15.el6) or later
•SUSE Linux Enterprise Server SP3 (kernel-2.6.16.60-0.54.5) or later.
Prepare to Install
Start the OS with the kernel on which you use PathManager and login as root. Mount the
installation CD as the root authority. (If the CD is not mounted automatically, mount
manually as follows.)
Linux
`-- RPMS
|-- RHEL5
| |-- 5.3
| | `-- EM64T
| | |-- sps-driver-E-4.2.4-2.6.18.128.el5.x86_64.rpm
| | |-- sps-mcopt-1.1.0-0.x86_64.rpm (*3)
| | `-- sps-utils-4.2.2-1.x86_64.rpm
| `-- 5.6
| `-- EM64T
| |-- sps-driver-E-5.0.3-2.6.18.238.9.1.el5.x86_64.rpm
| |-- sps-mcopt-1.1.1-0.el5.x86_64.rpm(*3)
| `-- sps-utils-5.0.2-1.el5.x86_64.rpm
`-- RHEL6
|-- 6.1
`-- 6.2
`-- EM64T
|-- sps-driver-E-5.1.5-2.6.32.220.0.15.el6.x86_64.rpm
|-- sps-mcopt-1.2.0-0.el6.x86_64.rpm(*3)
`-- sps-utils-5.1.4-0.el6.x86_64.rpm
For Linux/Scalable
HA Servers
Linux
`-- doc
|-- IS202E.pdf
`-- ISRX203E.pdf
PathManager User's
Manual (PDF file)
PathManager Install
Guide (PDF file)
readme.txt
filelist.txt
gpl.txt
install.sh
install.txt
installer (*4)
Directory/File name Description

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SnapSAN S3000/S5000 Path Manager Linux User Guide
Connect the server to the Overland Storage and check whether the server recognizes a
logical disk.
If "Overland" is displayed in "Vendor" item and "Model Name" or "DISK ARRAY" is
displayed in "Model" item as the result of execution of the command as follows, the Server is
recognized normally. (the shaded part shows it)
Installing PathManager RPM Package
The PathManager installation procedures depend on the system configuration (OS
distribution / kernel).
Installation by Installer
a. Go to the directory mounted to the PathManager Installation CD.
(If the CD is mounted automatically, go to the corresponding directory.)
OS Distribution Kernel Version
Red Hat Enterprise Linux AS 4
Red Hat Enterprise Linux ES 4
all
Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 5
Advanced Platform
earlier than 2.6.18-164.el5
2.6.18-164.el5 or later
Red Hat Enterprise Linux 6 2.6.32-131.0.15.el6 or later
SUSE Linux Enterprise Server 10
earlier than 2.6.16.60-0.54.5
2.6.16.60-0.54.5 or later

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SnapSAN S3000/S5000 Path Manager Linux User Guide
b. Execute the "install.sh" with "-i" option (as shown by the underlined part below).
*1: If you use the "--silent" option, the installer reboots the server automatically.
(You must reboot before operating the PathManager.)
*2: If the system uses iSCSI connection, pass the "--iscsi" option. If the system uses both
FC/SAS and iSCSI connections, also pass the "--iscsi" option. If the system uses iSCSI and
you want to reboot automatically, specify the both options "--silent" and "--iscsi".
•If the kernel version is 2.6.18-164.el5 and the system uses FC connection -
c. If the installation is finished normally, the message "sps Install Completed" (the
shadowed part in above) will be displayed. If this message is not displayed, that
installation is failed.
d. If the installation is finished normally, the system restarts one minute later (if
specifying "--silent" or "--reboot" option). And then, confirm that the system
restarts normally.
The installation is complete.
Manual Installation
a. Install the RPM file.
Move to the directory of compatible RPM files. How to specify the directory is shown below.