Replacing dead drives in ZRAID2

[Simon]

Am I the only one using this SCSI card and ZFS? does anyone use any type of
Adaptec U320 SCSI card? I hardly doubt the behaviour I'm experiencing is strictly
related to ahd driver.

When I first read about ZFS I've built up high hopes, but now they are slowly
fading away.

-Simon

On Tue, 01 May 2012 21:31:20 -0400, Simon wrote:


>ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter>
>on board of Super X5DPR-8G2+ motherboard.

>Also would like to add that when I plug a drive into this running machine, it
>prints the following, but does not come up under /dev unless I issue reset
>using camcontrol.

>ahd0: Someone reset channel A
>(da0:ahd0:0:0:0): WRITE(10). CDB: 2a 0 1 10 23 f0 0 0 80 0 
>(da0:ahd0:0:0:0): CAM status: SCSI Status Error
>(da0:ahd0:0:0:0): SCSI status: Check Condition
>(da0:ahd0:0:0:0): SCSI sense: UNIT ATTENTION asc:29,1 (Power on occurred)
>(da0:ahd0:0:0:0): Field Replaceable Unit: 1

>-Simon

>On Tue, 1 May 2012 20:57:52 -0400, Rich wrote:

>>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
>>>
>>>
>>>
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