On Tue, Feb 21, 2017 at 7:06 PM, Gianluca Cecchi
<gianluca.cec...@gmail.com> wrote:
> The id of the removed storage domain was
> 900b1853-e192-4661-a0f9-7c7c396f6f49 and on the not yet reboted hosts I get
> this
> The multipath device was 3600a0b80002999020000cd3c5501458f
>
> With pvs command I get this errors related to them:
>
> [root@ovmsrv06 ~]# pvs
>   /dev/mapper/3600a0b80002999020000cd3c5501458f: read failed after 0 of 4096
> at 0: Input/output error
>   /dev/mapper/3600a0b80002999020000cd3c5501458f: read failed after 0 of 4096
> at 2199023190016: Input/output error
>   /dev/mapper/3600a0b80002999020000cd3c5501458f: read failed after 0 of 4096
> at 2199023247360: Input/output error
>   /dev/mapper/3600a0b80002999020000cd3c5501458f: read failed after 0 of 4096
> at 4096: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/metadata: read failed after 0 of
> 4096 at 0: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/metadata: read failed after 0 of
> 4096 at 536805376: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/metadata: read failed after 0 of
> 4096 at 536862720: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/metadata: read failed after 0 of
> 4096 at 4096: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/outbox: read failed after 0 of
> 4096 at 0: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/outbox: read failed after 0 of
> 4096 at 134152192: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/outbox: read failed after 0 of
> 4096 at 134209536: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/outbox: read failed after 0 of
> 4096 at 4096: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/xleases: read failed after 0 of
> 4096 at 0: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/xleases: read failed after 0 of
> 4096 at 1073676288: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/xleases: read failed after 0 of
> 4096 at 1073733632: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/xleases: read failed after 0 of
> 4096 at 4096: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/leases: read failed after 0 of
> 4096 at 0: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/leases: read failed after 0 of
> 4096 at 2147418112: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/leases: read failed after 0 of
> 4096 at 2147475456: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/leases: read failed after 0 of
> 4096 at 4096: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/ids: read failed after 0 of 4096
> at 0: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/ids: read failed after 0 of 4096
> at 134152192: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/ids: read failed after 0 of 4096
> at 134209536: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/ids: read failed after 0 of 4096
> at 4096: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/inbox: read failed after 0 of
> 4096 at 0: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/inbox: read failed after 0 of
> 4096 at 134152192: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/inbox: read failed after 0 of
> 4096 at 134209536: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/inbox: read failed after 0 of
> 4096 at 4096: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/master: read failed after 0 of
> 4096 at 0: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/master: read failed after 0 of
> 4096 at 1073676288: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/master: read failed after 0 of
> 4096 at 1073733632: Input/output error
>   /dev/900b1853-e192-4661-a0f9-7c7c396f6f49/master: read failed after 0 of
> 4096 at 4096: Input/output error
>   PV                                            VG
> Fmt  Attr PSize  PFree
>   /dev/cciss/c0d0p2                             cl
> lvm2 a--  67.33g    0
>   /dev/mapper/3600a0b8000299aa80000d08b55014119
> 922b5269-ab56-4c4d-838f-49d33427e2ab lvm2 a--   4.00t 3.49t
> [root@ovmsrv06 ~]#
>
> How to clean?

This is caused by active lvs on the remove storage domains that were not
deactivated during the removal. This is a very old known issue.

You have remove the remove device mapper entries - you can see the devices
using:

    dmsetup status

Then you can remove the mapping using:

    dmsetup remove device-name

Once you removed the stale lvs, you will be able to remove the multipath
device and the underlying paths, and lvm will not complain about read errors.

Nir

>
> Gianluca
>
>
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