On Thu, Jul 10, 2008 at 11:31:06PM -0700, HIMANSHU wrote:
> Very basic question...
> Suppose I added say "MyLun0" in target say "MyTarget1" as a LUN Number
> 0.
> Then
> Is it the "Convention" that LUN 0 should not be "modified"?

No. You can do whatever you want.

> i.e.Afterwards I should not modify "MyTarget1" to contain "OtherLun0"
> instead of "MyLun0".
> The "rule" should that LUN 0 is not allowed to be "deleted"(though it
> is the only lun in that target OR there are other LUN's with LUN 0
> added in it )  is OK.
> Because at any time target should have at least 1 LUN associated with
> it.otherwise there is no point initiator using it.(Though initiator
> can login to target having no LUN in it without any error)
> Because I got the impression that once specific LUN0 is attached to a
> target.It is the same throughout.We cannot delete LUN0.We have to
> delete whole target for that.

That isn't true. You can disconnect (delete) the LUN from your machine
and rescan for it. I posted somewhere an example of how to do that. Look
for 'echo 1 > /sys/block/sd/device/delete'.

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