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Date:      Mon, 18 Oct 2010 20:55:18 +0400
From:      Sergey Kandaurov <pluknet@gmail.com>
To:        Charles Owens <cowens@greatbaysoftware.com>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>, Scott Long <scottl@freebsd.org>, freebsd-hardware@freebsd.org
Subject:   Re: mfiutil reports "PSTATE 0x0020" new drive state
Message-ID:  <AANLkTikzk6Pjr-mUx=m254JO3MdJXQw1zdTU12if0CGu@mail.gmail.com>
In-Reply-To: <AANLkTimYU_XmZ_DRjA_zJ7dcmgaj47UM6Tf3ea50cZLK@mail.gmail.com>
References:  <4CB8A614.6000707@greatbaysoftware.com> <4CB8BED6.8040204@greatbaysoftware.com> <AANLkTimYU_XmZ_DRjA_zJ7dcmgaj47UM6Tf3ea50cZLK@mail.gmail.com>

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On 16 October 2010 02:18, Sergey Kandaurov <pluknet@gmail.com> wrote:
> On 16 October 2010 00:51, Charles Owens <cowens@greatbaysoftware.com> wro=
te:
>> =A0Hmm... the problem appears to have resolved itself. =A0After a few ho=
urs the
>> new drive seems to have gone back into the array, and the original hot s=
pare
>> drive put back into hot-spare state.
>>
>> So I'm interpreting state 0x0020 to therefore mean something like "hang =
on
>> while I use this new drive to automatically put everything back as it wa=
s
>> before the failure". =A0Is this correct?
>>
>> Thanks,
>> Charles
>>
>> [root@Bsvr ~]# mfiutil show drives
>> mfi0 Physical Drives:
>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM236JR> =A0SATA enclosure =
1, slot 0
>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM237KF> =A0SATA enclosure =
1, slot 1
>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM236N8> =A0SATA enclosure =
1, slot 2
>> ( =A0149G) HOT SPARE<ST9160511NS SN04 serial=3D9SM237EK> =A0SATA enclosu=
re 1, slot
>> 3
>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM238AG> =A0SATA enclosure =
1, slot 4
>>
>>

>>>
[...]
>>> [root@svr ~]# mfiutil show drives
>>> mfi0 Physical Drives:
>>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM236JR> =A0SATA enclosure=
 1, slot
>>> 0
>>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM237KF> =A0SATA enclosure=
 1, slot
>>> 1
>>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM236N8> =A0SATA enclosure=
 1, slot
>>> 2
>>> ( =A0149G) ONLINE<ST9160511NS SN04 serial=3D9SM237EK> =A0SATA enclosure=
 1, slot
>>> 3
>>> ( =A0149G) PSTATE 0x0020<ST9160511NS SN04 serial=3D9SM238AG> =A0SATA en=
closure
>>> 1, slot 4
>>>
>>> mfi0:<LSI MegaSAS 1078> =A0port 0x1000-0x10ff mem
>>> ...
>>>
>
> Hi, Charles Owens.
>
> 0x20 is much likely to be the copyback physical state,
> which is missing in enum mfi_pd_state.
> And what you've experienced is copyback feature in action :)
> Your array has been rebuilt with HSP as its ordinal PD, then you
> switched failed drive
> with good one, and HSP came into copyback mode to move all its data back
> to good disk. That prevents reordering of disk numbers in array and
> double rebuilding.
>

So, it no one objects, I'd like to commit this change.

--=20
wbr,
pluknet

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