/dev/sd device addresses change

[Pan]

Every time we reboot our Linux ES 4 machine the device addresses for our hard drives change. This causes problems with mounting and some of our software that accesses these mounted drives. Anyone know how to resolve this issue or how to lock the drives down to one address?

[Jordan]

Do the hard drive addresses change or is it the partition addresses? I've seen this happen when it is connected to a SAN or a RAID. Are they connected to either and is that HD the mounted partition that changes addresses?

[Pan]

Yes, it is connected to a SAN. I believe that the multithreading is what causes this problem? Any idea how to resolve it?

Yes, it is only the partitions of the HD. The devices stay the same (/dev/sda)

[Jordan]

The solution to this is to label your partitions and remount in /etc/fstab with those partition names instead of the device name.

To label a partition:

e2label <partition> <label>

[Pan]

Thanks, works!

[EugenS]

That's pretty weird, you have to write commands for it to work?