Release Notes Device Mapper Multipath Enablement Kit for HP StorageWorks Disk Arrays v4.2.0 (AA-RWF9G-TE, March 2009)

/opt/hp/hp-lpfc/make_initrd

3. Reboot the host.

NOTE:

Ensure that you have a HBA driver installed in single path mode. For more information, see the

installation and reference guides for the respective HBA drivers.

Configuring iSCSI parameters

To configure the iSCSI parameters, complete the following steps:

1. Update the iSCSI configuration file

• In RHEL 5 and SLES10 hosts, edit the /etc/iscsi/iscsid.conf file with the following

value:

node.session.timeo.replacement_timeout=15

• In SLES 9 hosts, edit the /etc/iscsi.conf file with the following value:

ConnFailTimeout=15

2. Restart the iSCSI service using the following command:

• In RHEL 5 and SLES 9 hosts,

#/etc/init.d/iscsi restart

• In SLES 10 hosts,

#/etc/init.d/open-iscsi restart

Setting up Device Mapper Multipath daemon

You must set the Device Mapper Multipath daemon to start at boot time.

For RHEL hosts, complete the following steps to start the multipathd daemon at boot time:

1. Run the following command to check if the daemon is configured to start at boot time:

# chkconfig --list multipathd

2. Run the following commands to start the Device Mapper Multipath daemon:

# chkconfig [--level levels] multipathd on

# chkconfig multipathd

For SLES hosts, complete the following steps to start the multipathd daemon at boot time:

1. Run the following commands to check if the daemon is configured to start at boot time:

# chkconfig --list boot.device-mapper

# chkconfig --list boot.multipath

# chkconfig --list multipathd

2. Run the following commands to start the Device Mapper Multipath daemons:

# chkconfig boot.device-mapper [levels]

# chkconfig boot.multipath [levels]