Replacing dead drives in ZRAID2

Rich rercola at acm.jhu.edu
Wed May 2 00:57:53 UTC 2012


What card is this?

- Rich

On Tue, May 1, 2012 at 6:15 PM, Simon <simon at optinet.com> wrote:
>
> Sorry, I meant to say zpool offline.
>
> After I take the drive out marked as offline, and put it back in, the system spits
> the following:
>
> ahd0: someone reset channel A
> ahd0: WARNING no command for scb 242 (cmdcmplt)
> QOUTPOS = 283
>
>>>>>>>>>>>>>>>>>>>>Dumpt Card State Begins>>>>>>>>>>>>
> ahd0: dumping card state.... followed by a lard amount of data.
>
> It then freezes and won't executed any new commands.
>
> beta_srv# uname -a
> FreeBSD beta_srv 9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan  3 07:15:25
> UTC 2012     root at obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
>
> beta_srv# dmesg | grep ses
> ses0 at ahd0 bus 0 scbus0 target 6 lun 0
> ses0: <SUPER GEM318 0> Fixed Processor SCSI-2 device
> ses0: 3.300MB/s transfers
> ses0: SAF-TE Compliant Device
>
> Thanks,
> Simon
>
> On Tue, 1 May 2012 14:26:35 -0700, Freddie Cash wrote:
>
>>On Tue, May 1, 2012 at 1:57 PM, Simon <simon at optinet.com> wrote:
>>> I decided to give ZFS ZRAID2 a shot after getting fed up with some legacy
>>> hardware RAID cards that don't properly perform, or at all, patrol-reads +
>>> consistency checking. So...
>>>
>>> I can't seem to figure out the proper way to replace a dead drive in a running
>>> system with SCSI+SES enclosure. I tried:
>>>
>>> zpool detach zroot baddrive
>>> camcontrol stop baddrive
>
>>You can't detach drives from raidz vdevs.  The correct process is:
>
>>zpool offline zroot <baddrive>
>><pull drive from system>
>><insert new drive>
>><do any partitioning, labelling, etc to suit your env>
>>zpool replace zroot <baddrive> <newdrive>
>
>>"zpool detach" is only used for mirror vdevs.
>
>>--
>>Freddie Cash
>>fjwcash at gmail.com
>
>
>
> _______________________________________________
> freebsd-fs at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-fs
> To unsubscribe, send any mail to "freebsd-fs-unsubscribe at freebsd.org"


More information about the freebsd-fs mailing list