HP StorageWorks 500 HP StorageWorks Smart Array Multipath software user guide - Page 28

Post-installation configuration for Novell SUSE Linux Enterprise Server 9.0

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2. Open a console prompt. 3. Mount the CD-ROM. 4. Change to the Linux directory. 5. List the contents of the directory, and select the proper RPM for the current operating system. 6. Install the proper RPM using the following command: #rpm -Uhv --replacefiles cpq_cciss_ .i686.rpm 7. After successful installation, reboot the server. 8. Repeat steps 1 through 7 for each server connected to the MSA500 G2 storage system. Post-installation configuration for Novell SUSE Linux Enterprise Server 9.0 After installing Smart Array Multipath software on a server with a Red Hat Enterprise Linux operating system, configure for multipath operations. Review the following sample configuration procedure. This procedure assumes that the user wants to set /dev/cciss/c1d0p2 and /dev/cciss/c2d0p2 to point to the same volume as a multipath device. To configure the system for multipath use, complete the following steps: 1. Update the system configuration. a. Set the hotplug setting. Using an editor of your choice, edit the file /etc/sysconfig/hotplug and set the following value: HOTPLUG_USE_SUBFS=no b. Configure the system to automatically load device drivers for MSA controllers at each system startup. Using an editor of your choice, edit the file /etc/sysconfig/kernel and add your driver to the INITRD_MODULES variable. For example: If your system contains a controller that is accessed by the cciss driver, you are using ReiserFS as a filesystem, and qla2xxx driver, edit the variable to be INITRD_MODULES="cciss reiserfs qla2xxx" After applying this change, be sure to recreate the INITRD by running the mkinitrd command. NOTE: In LILO environments, be sure to run it one time to update the boot record. 2. For environments using the extension 3 (ext3) filesystem, invoke the barrier=0 mount option by entering a command similar to the following: Mount -t ext3 -o barrier=0 /dev/md0 /hoge 3. Enable MPIO components. a. To start the multipath components, run the following commands: /etc/init.d/boot.multipath start /etc/init.d.multipathd start b. To integrate the multipath setup in the boot sequence so that access to all devices will go through the MPIO layer, run the following command: Insserv boot.multipath multipathd 4. Review current MPIO status. To list the status, run the following command: Multipath -l Results should look similar to the following: 3600601607cf30e00184589a37a31d911 [size=127 GB][features="0"][hwhandler="1 emc"] \_ round-robin 0 [active][first] \_ 1:0:1:2 sdav 66:240 [ready ][active] \_ 0:0:1:2 sdr 65:16 [ready ][active] \_ round-robin 0 [enabled] 28 Installation and operation in Novell SUSE Linux Enterprise Server 9.0 environments

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2.
Open a console prompt.
3.
Mount the CD-ROM.
4.
Change to the Linux directory.
5.
List the contents of the directory, and select the proper RPM for the current operating system.
6.
Install the proper RPM using the following command:
#rpm -Uhv --replace
fi
les cpq_cciss_<os version> .i686.rpm
7.
After successful installation, reboot the server.
8.
Repeat steps 1 through 7 for each server connected to the MSA500 G2 storage system.
Post-installation con
fi
guration for Novell SUSE Linux Enterprise
Server 9.0
After installing Smart Array Multipath software on a server with a Red Hat Enterprise Linux operating
system, con
fi
gure for multipath operations.
Review the following sample con
fi
guration procedure. This procedure assumes that the user wants to set
/dev/cciss/c1d0p2 and /dev/cciss/c2d0p2 to point to the same volume as a multipath device.
To con
fi
gure the system for multipath use, complete the following steps:
1.
Update the system con
fi
guration.
a.
Set the hotplug setting.
Using an editor of your choice, edit the
fi
le /etc/syscon
fi
g/hotplug and set the following
value: HOTPLUG_USE_SUBFS=no
b.
Con
fi
gure the system to automatically load device drivers for MSA controllers at each
system startup.
Using an editor of your choice, edit the
fi
le /etc/syscon
fi
g/kernel and add your driver to
the INITRD_MODULES variable.
For example: If your system contains a controller that is accessed by the cciss driver,
you are using ReiserFS as a
fi
lesystem, and qla2xxx driver, edit the variable to be
INITRD_MODULES=”cciss reiserfs qla2xxx”
After applying this change, be sure to recreate the INITRD by running the mkinitrd command.
NOTE:
In LILO environments, be sure to run it one time to update the boot record.
2.
For environments using the extension 3 (ext3)
fi
lesystem, invoke the barrier=0 mount option by
entering a command similar to the following:
Mount –t ext3 –o barrier=0 /dev/md0 /hoge
3.
Enable MPIO components.
a.
To start the multipath components, run the following commands:
/etc/init.d/boot.multipath start
/etc/init.d.multipathd start
b.
To integrate the multipath setup in the boot sequence so that access to all devices will go
through the MPIO layer, run the following command:
Insserv boot.multipath multipathd
4.
Review current MPIO status.
To list the status, run the following command:
Multipath -l
Results should look similar to the following:
3600601607cf30e00184589a37a31d911
[size=127 GB][features="0"][hwhandler="1 emc"]
\_ round-robin 0 [active][first]
\_ 1:0:1:2 sdav 66:240 [ready ][active]
\_ 0:0:1:2 sdr 65:16 [ready ][active]
\_ round-robin 0 [enabled]
28
Installation and operation in Novell SUSE Linux Enterprise Server 9.0 environments