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Date:      Sat, 5 Aug 2017 20:20:32 +0200
From:      Ben RUBSON <ben.rubson@gmail.com>
To:        Freebsd fs <freebsd-fs@freebsd.org>
Subject:   Re: a strange and terrible saga of the cursed iSCSI ZFS SAN
Message-ID:  <7F068B61-6167-4C58-A925-7956B1D023D6@gmail.com>
In-Reply-To: <8ff8d88c-ec9a-5586-b131-c9bc1fe17d95@norma.perm.ru>
References:  <1bd10b1e-0583-6f44-297e-3147f6daddc5@norma.perm.ru> <8D11D326-6611-4798-AE3E-9411200A9556@gmail.com> <25a4d73c-698e-38bd-7957-f2895a01e351@norma.perm.ru> <8ff8d88c-ec9a-5586-b131-c9bc1fe17d95@norma.perm.ru>

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> On 05 Aug 2017, at 19:59, Eugene M. Zheganin <emz@norma.perm.ru> =
wrote:
>=20
> Hi,
>=20
> On 05.08.2017 22:50, Eugene M. Zheganin wrote:
>> Hi,
>>=20
>> On 05.08.2017 22:22, Ben RUBSON wrote:
>>>> On 05 Aug 2017, at 19:08, Eugene M. Zheganin <emz@norma.perm.ru> =
wrote:
>>>>=20
>>>> (...)
>>>>=20
>>>> 1) autumn 2016, SAN is set up, supermicro server, external JBOD, =
sandisk ssds, several redundant pools, FreeBSD 11.x (probably release, =
don't really remember - see below).
>>> Hi Eugene,
>>>=20
>>> Which SAS adapter ?
>>> SAS 2008 ?
>> Exactly. What's wrong with it ? I'm running latest (or at least not =
that old) firmware on em.
>>=20
> No, wait, my bad,  it's LSISAS3008. mpr(4) one.

Nothing wrong but things such as verifying the firmware version.
Certainly you use the same (IT ?) version on all your 6 HBA.
Not sure about the 3008, but we had a discussion on this list some =
months ago about 2008 firmwares, some were said to be bad.
You could also enable some HBA debugging, we never know :
sysctl dev.mpr.0.debug_level=3D0x1B

Ben




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