Users Guide

6–Boot from SAN Configuration
iSCSI Boot from SAN
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13. Edit the /etc/default/grub file as follows:
a. Locate the string in double quotes as shown in the following example.
The command line is a specific reference to help find the string.
GRUB_CMDLINE_LINUX="iscsi_firmware"
b. The command line may contain other parameters that can remain.
Change only the
iscsi_firmware string as follows:
GRUB_CMDLINE_LINUX="rd.iscsi.firmware selinux=0"
14. Create a new grub.cfg file by issuing the following command:
# grub2-mkconfig -o /boot/efi/EFI/redhat/grub.cfg
15. Rebuild the ramdisk by issuing the dracut -f command, and then reboot.
NOTE
When installing iSCSI BFS in Linux with a multipath I/O (MPIO)
configuration and a single path active, use the following settings in the
multipath.conf file:
defaults {
find_multipaths yes
user_friendly_names yes
polling_interval 5
fast_io_fail_tmo 5
dev_loss_tmo 10
checker_timeout 15
no_path_retry queue
}
These suggested settings are tunable and provided as guidance for
iSCSI BFS to be operational.
For more information, contact the appropriate OS vendor.