/dev/sda & /dev/sdb keeps swapping name
 

Hi,

I have a problem with my raid config.

I have a storage of 367 GB which it is mounted as /dev/sdb but this is different after every boot.

It starts as /dev/sdb.

Reboot

it starts as /dev/sda

Reboot

it start as /dev/sdb

etc...

THE CONFIG of FDISK -L

Disk /dev/sda: 9180 MB, 9180515328 bytes
255 heads, 63 sectors/track, 1116 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x0009000d

Device Boot Start End Blocks Id System
/dev/sda1 * 1 1062 8530483+ 83 Linux
/dev/sda2 1063 1116 433755 5 Extended
/dev/sda5 1063 1116 433723+ 82 Linux swap / Solaris

Disk /dev/sdb: 367.0 GB, 367033057280 bytes
255 heads, 63 sectors/track, 44622 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
/dev/sdb1 1 44622 358426183+ 83 Linux





What have i done so far:

changed the cables
changed the raid card
changed the raid config
cleared the config and configed it again
deleted the partition and made a partition again

any ideas?

What type of drives are these? SATA, SCSI etc.
What linux distribution/version are you running?

In /dev/disk/* you'll find links to each disk device on your system, named according to things like the drive's serial number or label. Use these in your configuration files instead of /dev/sd* and you'll always get the same devices regardless of the order in which the system detects them.

To elaborate on David the H's post google and read the mount man pages for UUID and volume labels.

Oke thanks.

There is only one thing i dont get:

my fstab:

# /dev/sda1
UUID=9940c6fc-b36a-4ef5-9e36-e959aa20eb51 / ext3 defaults,errors=remount-ro 0 1
# /dev/sda5
UUID=3703e4c5-c189-4892-a0f7-b230dd941797 none swap sw 0 0

But sometimes sda1 becomes sdb1 after reboot. If i look at my fstab and see that i use the uuid to mount the main disk shouldn't it always become sda?

Thanks for the reply!