Asus DS300j G2 Series User Manual page 253

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The latest device mapper and multipath packages must be loaded onto your Linux host before configuring
Device Mapper Multipath (DM-MP). When this document was written, the current versions were:
• For RHEL 5.3
• device-mapper-1.02.28-2.el5
• device-mapper-multipath-0.4.7-23.el5
• For RHEL 5.4
• device-mapper-1.02.32-1.el5
• device-mapper-multipath-0.4.7-30.el5
• For RHEL 5.5
• device-mapper-1.02.39-1.el5
• device-mapper-multipath-0.4.7-34.el5
• For SLES 10 SP2
• device-mapper-1.02.13-6.14
• multipath-tools-0.4.7-34.38
• For SLES 10 SP3
• device-mapper-1.02.13-6.14
• multipath-tools-0.4.7-34.50.10
• For SLES 11
• device-mapper-1.02.27-8.6
• multipath-tools-0.4.8-40.1
• For SLES 11 SP1
• device-mapper-1.02.27-8.20
• multipath-tools-0.4.8-40.21.1
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The easiest and most effective way to install the device mapper and multipath tool is during OS installation. The
device mapper installs by default, regardless of the configuration you select. However, you must manually specify
the multipath tool, as it does not install as a part of any of the configurations of either OS. The multipath tool is
listed as an option under Base System.
For hosts with the OS already installed, you can add the device mapper and multipath tool, if they are missing.
Example: To add the multipath tool for RHEL 5.x, do the following actions:
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1. Open a terminal window.
2. Type the following command and press Enter :
# rpm -ivh device-mapper-multipath-0.4.7-8.el5.i386.rpm
The system returns the following lines:
Preparing... ##################### [100%]
1:device-mapper-multipath##################### [100%]
#
(or a similar message)
Important
Where possible, obtain the device mapper and multipath tool from the original installation
CDs to ensure full compatibility with your existing OS. Refer to your OS documentation
for more information.
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To verify that the required packages are installed on the host, do the following actions:
1. Open a terminal window.
2. Type the following command and press Enter :
# rpm -qa | grep device-mapper
If the required packages are present, the system returns the following lines.
RHEL 5.3:
device-mapper-1.02.28-2.el5
device-mapper-multipath-0.4.7-23.el5
RHEL 5.4:
device-mapper-1.02.32-1.el5
device-mapper-multipath-0.4.7-30.el5
RHEL 5.5:
device-mapper-1.02.39-1.el5
device-mapper-multipath-0.4.7-34.el5
Note that the actual version number might be different, depending on your configuration.
DS300f G2 Series User Manual