How to get persistent drive names for iscsi drives in el5

itsakc · 11-09-2009, 06:26 AM

Hi
I have a server running rhel5-update3 (2.6.18-128.el5). I have mapped a few iscsi drives of different sizes to this server. Now they are detected as /dev/sdb through /dev/sdr , but every time I restart the iscsi service they dirves get mapped to different drive names than before. I am using
iscsi-initiator-utils-6.2.0.871-0.10.el5
I want the drives to be mapped persistently to certain drive names.

-Thanks

JamesChamberlain · 11-09-2009, 09:07 AM

use e2label command and give them labels, then edit the fstab to replace the partition number to LABEL=Set-Label-Here

# man e2label

That way fstab wont look for drive letters (sdb, sdc, sdd..) it'l look for the partitions label instead, fixing your problem.

itsakc · 05-17-2010, 12:20 PM

Can I use the labeling method even if I am using LVM ?

vimal · 06-01-2010, 07:43 AM

You need not use the labels if you are using LVM since the disks will come up in the actual order. This is because of the LVM label put in the 2nd 512 bytes of the partition/disk while creating the physical volume.

JD50 · 06-02-2010, 12:38 PM

You might want to look into using udev rules.