On Mon, Nov 26, 2018, at 8:27 AM, [email protected] wrote:
> Dear ZFS developers,
>
> We are a scientific research center in Berlin, and we are using ZFS
> as file system for our servers.
>
> We need an urgent help in this issue:
>
> We have one DELL machine (CentOS 6) was running as File server:
>
> 1- It has 2 rear drives with RAID mirror, where the OS was installed.
> 2- It has 16 front drives (SEAGATE) 6TB. 3- It is attached to
> external DISK enclosure with 30 external drives * 6TB 4- It has a
> zpool (data18) contains 16 (front disks) + 30 (external disks).
>
> We reinstall a new OS (CentOS 7.4) on the rear drives but we found
> that the GPT partition table was lost for 30 external drives, then
> the zpool failed to import the dataset again
>
> $ zpool import pool: data18 id: 18087394550162618068 state:
> UNAVAIL status: One or more devices are missing from the system.
> action: The pool cannot be imported. Attach the missing devices
> and try again. see: http://zfsonlinux.org/msg/ZFS-8000-6X config:
>
> data18 UNAVAIL missing device raidz3-0 ONLINE
> mpathae1 ONLINE mpathaf1 ONLINE mpatham1 ONLINE
> mpathan1 ONLINE mpathao1 ONLINE mpathap1 ONLINE
> mpathaq1 ONLINE mpathar1 ONLINE mpathas1 ONLINE
> mpathat1 ONLINE mpathag1 ONLINE mpathah1 ONLINE
> mpathai1 ONLINE mpathaj1 ONLINE mpathak1 ONLINE spares
> sdp
>
> Additional devices are known to be part of this pool, though
> their exact configuration cannot be determined.
>
> Could you please advise us?!
>
> We appreciate any advice or help from you.
>
> Thanks in advance, Best regards,> --------------------------------
> Motaz Diab
> HPC System Administrator
> Max-Delbrück-Center
> Robert Rössle Str. 10
> 13125 Berlin
> House 23 / Room 202
> Tel:+49-(0)30-9406 2586
> *openzfs[1]* / openzfs-developer / see discussions[2] +
> participants[3] + delivery options[4] Permalink[5]
This isn't really a tech support list, and I don't know where you would
find someone who has a lot of experience with ZoL/CentOS, however I can
see that it's likely the GPT tables are lost because the multipath
devices didn't come online.
# multipath -v2
might provide useful output.
For that matter
# lsblk
It's possible the controller for the external shelf isn't detected with
the new version of CentOS.
Good luck with it.
--
Thanks,
Josh Paetzel
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