fastest way

[T G Manikandan]

Hello,

I want to change the external disk scsi id number

I have two internal disk slots for SCSI id 5 and 6.
I have a external disk which is given scsi id 5.

in ID 6 i have my root disk.
Now I want to add another disk into the system so I need to change the external disk ID and insert a new disk at ID 5 which is the internal disk slot.

THis is on a C3600 machine.

[Vincent Farrugia]

Hello,

There are 3 jumpers on internal disks signifying SCSI ID. You have to put a jumper in the first, remove the second, and put one in the third for SCSI ID 5.

Usually external disks have switches on the back, which you can press to change SCSI ID. If you are connecting on the same bus, put it as ID 4, otherwise you can leave it as it is.

HTH,
Vince

[T G Manikandan]

I want to keep the data intact.

which would be faster like

doing a export from the external disk with ID5

then changing its ID to other.
Then importing it to the fresh disk now inserted at ID 5.

THanks

[T G Manikandan]

Vincent,

This 9000/785/C3600 machine has two internal disk slots which have been named as SCSI ID 5 & 6.
I don't think changing jumper settings on the disk will help.
Do you think it will work.
Anyway I will check them.


I will revert
THanks

[Wodisch_1 · Accepted solution]

Hi T.G.,

if that disk is an VG of its own, simply "umount" everything on it, "vgchange -a n" that VG, and "vgexport -s -m /tmp/map" that VG.
Then change the SCSI-Id jumpers, create the VG directory and "group" device and "vgimport -s -m /tmp/map" it back in - that's it!

HTH,
Wodisch