Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays v4.3.0 release notes (AA-RWF9H-TE, June 2009)

#mv /boot/initrd-<version no.>.img /boot/initrd-<version
no.>.img.old
b. Make a new initrd image by executing the following command:
• For SLES 11: #mkinitrd -k <kernal> —i <initrd>
• For other operating systems: #mkinitrd /boot/initrd-<version no.>.img
`uname -r`
c. Edit the value for default parameter in /boot/grub/menu.lst file to boot with the
new initrd image.
• For other operating systems using the HP Emulex drivers, execute the following command:
/opt/hp/hp-lpfc/make_initrd
3. Reboot the host.
Configuring iSCSI parameters
To configure the iSCSI parameters, complete the following steps:
1. Update the iSCSI configuration file
• In RHEL 5, SLES10, and SLES 11 hosts, edit the /etc/iscsi/iscsid.conf file with the
following value:
node.session.timeo.replacement_timeout=15
node.startup=automatic
• In RHEL 4 hosts, edit the /etc/iscsi.conf file with the following value:
ConnFailTimeout=15
2. Restart the iSCSI service by executing the following command:
• In RHEL 4/RHEL 5 hosts,
#/etc/init.d/iscsi restart
• In SLES 10/SLES 11 hosts,
#/etc/init.d/open-iscsi restart
Configuring mptsas parameters
To configure the mptsas parameters for RHEL 5 and SLES hosts, complete the following steps:
1. Edit the /etc/modprobe.conf file in RHEL 5 hosts and /etc/modprobe.conf.local file
in SLES hosts with the following values:
options mptsas mpt_cmd_retry_count=10 mpt_disable_hotplug_remove=1
2. Rebuild the initrd by executing the following commands:
a. Backup the existing initrd image by executing the following command:
#mv /boot/<initrd-version no.>.img /boot/<initrd-version
no.>.img.old
b. Make a new initrd image by executing the following command:
• For SLES 10 SP2/SLES 11:
#mkinitrd -k <kernal> —i <initrd>
• For RHEL operating systems:
#mkinitrd /boot/<initrd-version no.>.img 'uname —r'
Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays v4.3.0 release notes 13