[dm-devel] unmapping luns doesn't work (good)
Chauhan, Vijay
Vijay.Chauhan at lsi.com
Thu Oct 21 07:28:36 UTC 2010
On Monday, October 18, 2010 8:54 PM, Rudy Gevaert wrote:
> Case 1:
> -------
> multipath -l
>
> mail17r-ds3400-1 (3600a0b80005a67b6000004764cac4912) dm-2
> IBM,1726-4xx
> FAStT
> size=550G features='1 queue_if_no_path' hwhandler='1 rdac' wp=rw
> |-+- policy='round-robin 0' prio=-1 status=active
> | `- 0:0:0:6 sde 8:64 active undef running
> `-+- policy='round-robin 0' prio=-1 status=enabled
> `- 5:0:0:6 sdj 8:144 active undef running
>
> root at cyrprd1:~# dmsetup table
> mail17r-ds3400-1: 0 1153433600 multipath 1 queue_if_no_path 1
> rdac 2 1
> round-robin 0 1 1 8:64 1000 round-robin 0 1 1 8:144 1000
>
> I now remove mapping through the storage software.
Try with disabling the queuing before removing the map.
dmsetup message mail14r-ds3400-1 0 "fail_if_no_path"
>
> root at cyrprd1:~# multipath -f mail14r-ds3400-1
> Oct 18 17:07:09 | mail14r-ds3400-1: map in use
>
Regards,
Vijay
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