SCSI CONTROLLER

[Bunty11]

I have 3 Harddisk and 1 SCSI Controller.

Earlier, all three HDD were attached to a only one SCSI controller. So they had SCSI id as follows:

HDD1 - SCSI (0:0)

HDD2 - SCSI (0:1)

HDD2 - SCSI (0:2)

Now one more SCSI controlled was added. And HDD2 was moved to newly added SCSI controller. So now there SCSI ids are as follows:

HDD1 - SCSI (0:0)

HDD2 - SCSI (0:1)

HDD2 - SCSI (1:0)

Will the Linux operating system detect these changes automactically?

Or do we need to do any thing else?

[abhilashhb]

There will be issues only if you move from one type of scsi controller to another. If you are using the same SCSI controller then it should not cause any issue.

AFAIK only the naming convention will change as its a new device.

Check this link SCSI and Linux

[Bunty11]

yeah .. the controller was of same type.

linux machine was unable to detect the hardisk whos scsi id was changed.  something needs to be done from OS level.