Users Guide

6–Boot from SAN Configuration
iSCSI Boot from SAN
105 AH0054602-00 M
8. Reboot and change the adapter boot settings to use L4 or iSCSI (HW) for
both ports and to boot through L4.
9. After booting into the OS, set up the multipath daemon
multipathd.conf:
# mpathconf --enable --with_multipathd y
# mpathconf –enable
10. Start the multipathd service:
# service multipathd start
11. Rebuild initramfs with multipath support.
# dracut --force --add multipath --include /etc/multipath
12. Reboot the server and boot into OS with multipath.
1.
2.
Migrating and Configuring MPIO to Offloaded Interface for SLES 11 SP4
To migrate from L2 to L4 and configure MPIO to boot the OS over an
offloaded interface for SLES 11 SP4:
1. Follow all the steps necessary to migrate a non-offload (L2) interface to an
offload (L4) interface, over a single path. See Migrating to Offload iSCSI for
SLES 11 SP4.
2. After you boot into the OS using the L4 interface, prepare multipathing as
follows:
a. Reboot the server and open the HII by going to System
Setup/Utilities.
b. In the HII, select System Configuration, and select the second
adapter port to be used for multipath.
c. On the Main Configuration Page under Port Level Configuration, set
Boot Mode to iSCSI (HW) and enable iSCSI Offload.
d. On the Main Configuration Page under iSCSI Configuration, perform
the necessary iSCSI configurations.
e. Reboot the server and boot into OS.
NOTE
\
For any additional changes in the /etc/multipath.conf file to take effect,
you must rebuild the initrd image and reboot the server.