Thinking of using ZFS/FBSD for a backup system
Kris Kennaway
kris at FreeBSD.org
Wed Jul 9 14:29:31 UTC 2008
aslam_mohamed at wordbank.com wrote:
> Something interesting, I just slot couple of 1TB SATA in to the same
> FreeBSD machine and re-created the zfs pool (this is just to make sure
> that without firewire the ZFS can work well in FeeBSD) . When I reboot
> the machine I see the following appears on booting... This is the same
> thing appeared before with Firewire!!
>
> ad4: 76324MB <HDS728080PLA380 40Y9028LEN PF2OA65A> at ata2-master SATA150
> ad8: 953869MB <Seagate ST31000340NS SN05> at ata4-master SATA150
> ad10: 953869MB <Seagate ST31000340NS SN05> at ata5-master SATA150
> **GEOM: ad8: corrupt or invalid GPT detected.**
> **GEOM: ad8: GPT rejected -- may not be recoverable.**
> **GEOM: ad10: corrupt or invalid GPT detected.**
> **GEOM: ad10: GPT rejected -- may not be recoverable.**
> SMP: AP CPU #1 Launched!
> Trying to mount root from ufs:/dev/ad4s1a
> WARNING: ZFS is considered to be an experimental feature in FreeBSD.
> ZFS filesystem version 6
> ZFS storage pool version 6
>
> Now I am running Rsync to backup all the file servers and it had done up
> to 1TB without complaining.. Currently, the Zpool status looks pretty OK..
>
> pool: backup
> state: ONLINE
> scrub: none requested
> config:
>
> NAME STATE READ WRITE CKSUM
> backup ONLINE 0 0 0
> ad8 ONLINE 0 0 0
> ad10 ONLINE 0 0 0
>
> errors: No known data errors
>
> I don't know in the future there will be any issue because of this Geom
> messages... is there any known problem like zfs/geom/gpt
> incompatibility?.. is it the ZFS causing this error(!) messages?..any
> thoughts?...
It does not have anything to do with ZFS. GEOM is at a lower layer than
ZFS is. The messages *may* be harmless but you should investigate
further. Presumably you did the GPT configuration yourself - you should
verify or redo it.
Kris
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