Re: Can not mount rbd device anymore

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On Tue, Jun 22, 2021 at 10:12 AM Ml Ml <mliebherr99@xxxxxxxxxxxxxx> wrote:

> ceph -s is healthy. I started to do a xfs_repair on that block device
> now which seems to do something...:
>
>         - agno = 1038
>         - agno = 1039
>         - agno = 1040
>         - agno = 1041
>         - agno = 1042
>         - agno = 1043
>         - agno = 1044
>         - agno = 1045
>         - agno = 1046
>         - agno = 1047
>         - agno = 1048
>         - agno = 1049
>         - agno = 1050
>
> (i am new to xfs) but hat proofes that the block device is alive and
> accessible?
> Maybe I have a Filesystem problem?
>

I would look in syslog, dmesg, and use a -v flag with mount to see if
anything else comes up.  Maybe parted /dev/rbd0 to see if you can access
the partition table.  xfs_repair -L can address any issues with XFS, but it
should not break on its own


>
> On Tue, Jun 22, 2021 at 3:33 PM Alex Gorbachev <ag@xxxxxxxxxxxxxxxxxxx>
> wrote:
> >
> > On Tue, Jun 22, 2021 at 8:36 AM Ml Ml <mliebherr99@xxxxxxxxxxxxxx>
> wrote:
> >>
> >> Hello List,
> >>
> >> oversudden i can not mount a specific rbd device anymore:
> >>
> >> root@proxmox-backup:~# rbd map backup-proxmox/cluster5 -k
> >> /etc/ceph/ceph.client.admin.keyring
> >> /dev/rbd0
> >>
> >> root@proxmox-backup:~# mount /dev/rbd0 /mnt/backup-cluster5/
> >>  (just never times out)
> >>
> >> Any idea how to debug that mount? Tcpdump does show some active traffic.
> >>
> >> Cheers,
> >> Michael
> >> _______________________________________________
> >> ceph-users mailing list -- ceph-users@xxxxxxx
> >> To unsubscribe send an email to ceph-users-leave@xxxxxxx
> >
> >
> >
> > Have you checked the status of the cluster (ceph -s)?  Are there any OSD
> issues, network problems (can you ping your MONs, OSD hosts)?  Check your
> syslog on the client for any timeout entries.  That should be a good start,
> and give you some diagnostic info.
> >
> > --
> > Alex Gorbachev
> > ISS/Storcium
>
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