User guide

1. OVERVIEW

This document provides instructions on how to install DDN’s multipath RPM and manage Linux

multipathing on DDN’s family of Disk Arrays. The ddn_mpath_RHEL5_SLES10-1.1-0.x86_64.rpm

provides validated and optimized configuration settings to achieve load balancing, path

failover, and controller failover of DDN disk arrays in supported Linux environments. DDN’s

multipath ddn_mpath_RHEL5_SLES10-1.1-0.x86_64.rpm is an extension to the Linux multipath

tools package: device mapper multipathing, dm-multipath.c

2. DDN MULTIPATH RPM VERSIONS

Use the table below to determine which DDN multipath RPM package required for each DDN

array type and supported Linux Distribution

The figure below shows the current compatibility matrix with DDN Products, Linux Distribution,

and DDN multipath RPM.

Products Supported in all versions:

EF 3015, S2A 6620, S2A 9900, SFA 10000

Linux Distribution version

DDN Linux Multipath rpms required

Red Hat Enterprise Linux 5.4

ddn_mpath_RHEL5_SLES10-1.1-0.x86_64.rpm

Red Hat Enterprise Linux 5.5

ddn_mpath_RHEL5_SLES10-1.1-0.x86_64.rpm

Red Hat Enterprise Linux 5.6

ddn_mpath_RHEL5_SLES10-1.1-0.x86_64.rpm

Red Hat Enterprise Linux 6.0

ddn_mpath_RHEL6-1.1-0.el6.x86_64.rpm

SUSE LINUX Enterprise Server 10 SP2

ddn_mpath_RHEL5_SLES10-1.1-0.x86_64.rpm

SUSE Linux Enterprise Server 11

multipath-tools-0.4.8-40.21.1ddn.x86_64.rpm

kpartx-0.4.8-40.21.1ddn.x86_64.rpm

ddn_mpath_SLES11-1.1-0.x86_64.rpm