[Lustre-discuss] aacraid kernel panic caused failover

Jeff Johnson
Wed, 06 Apr 2011 12:52:45 -0000

I have seen similar behavior on these controllers. On dissimilar configs and
different aged systems. These happened to be non-Lustre standalone nfs and iscsi
target boxes.

Went through controller and drive firmware upgrades, low-level fw dumps  and
analysis from dev engineers.

In the end it was never really explained or resolved. It appears that these
controllers, like small children, have tantrums and fall apart. A power cycle
clears the condition.

Not the best controller for an OSS.

--Jeff

---mobile signature---
Jeff Johnson - Aeon Computing
jeff.johnson at aeoncomputing.com


On Apr 6, 2011, at 1:05, Thomas Roth <t.roth at gsi.de> wrote:

> We have ~ 60 servers with these Adaptec controllers, and found this problem
just to happen from time to time.
> Upgrade of the aacraid module wouldn''t help. We had contacts to
Adaptec, but they had no clue either.
> Only good thing is it seems that this adapter panic happens in an instant,
halting the machine, but has no prior phase of degradation: the controller
> doesn''t start leaving out every second bit or just writing the
''1''s and not the ''0''s or ... - so whatever
data has made it to the disks before the
> crash seems to be quite sensible. Reboot and never buy Adaptec again.
>
> Cheers,
> Thomas
>
> On 04/06/2011 07:03 AM, David Noriega wrote:
>> Ok I updated the aacraid driver and the raid firmware, yet I still had
>> the problem happen, so I did more research and applied the following
>> tweaks:
>>
>> 1) Rebuilt mkinitrd with the following options:
>> a) edit /etc/sysconfig/mkinitrid/multipath to contain MULTIPATH=yes
>> b) mkinitrid initrd-2.6.18-194.3.1.el5_lustre.1.8.4.img
>> 2.6.18-194.3.1.el5_lustre.1.8.4 --preload=scsi_dh_rdac
>> 2) Added the local hard disk to the multipath black list
>> 3) Edited modprobe.conf to have the following aacraid options:
>> options aacraid firmware_debug=2 startup_timeout=60 #the debug
doesn''t
>> seem to print anything to dmesg
>> 4) Added pcie_aspm=off to the kernel boot options
>>
>> So things looked good for a while. I did have a problem mounting the
>> lustre partitions but this was my fault in misconfiguring some lnet
>> options I was experimenting with. I fixed that and just as a test, I
>> ran ''modprobe lustre'' since I wasn''t ready
to fail back the partitions
>> just yet(wanted to wait till when activity was the lowest). That was
>> earlier today. I was about to fail back tonight, yet when I checked
>> the server again I saw in dmesg the same aacraid problems from before.
>> Is it possible lustre is interfering with aacraid? Its weird since I
>> do have a duplicate machine and its not having any of thise problems.
>>
>> On Fri, Mar 25, 2011 at 9:55 AM, Temple  Jason <jtemple at
cscs.ch> wrote:
>>> Adaptec should have the firmware and drivers on their site for your
card.  If not adaptec, then SOracle will have it available somewhere.
>>>
>>> The firmware and system drivers usually have a utility that will
check the current version and upgrade it for you.
>>>
>>> Hope this helps (I use different cards, so I can''t tell
you exactly).
>>>
>>> -Jason
>>>
>>> -----Original Message-----
>>> From: David Noriega [mailto:tsk133 at my.utsa.edu]
>>> Sent: venerd?, 25. marzo 2011 15:47
>>> To: Temple Jason
>>> Subject: Re: [Lustre-discuss] aacraid kernel panic caused failover
>>>
>>> Hmm not sure, whats the best way to find out?
>>>
>>> On Fri, Mar 25, 2011 at 9:46 AM, Temple  Jason <jtemple at
cscs.ch> wrote:
>>>> Hi,
>>>>
>>>> Are you using the latest firmware?  This sort of thing used to
happen to me, but with different raid cards.
>>>>
>>>> -Jason
>>>>
>>>> -----Original Message-----
>>>> From: lustre-discuss-bounces at lists.lustre.org
[mailto:lustre-discuss-bounces at lists.lustre.org] On Behalf Of David Noriega
>>>> Sent: venerd?, 25. marzo 2011 15:38
>>>> To: lustre-discuss at lists.lustre.org
>>>> Subject: [Lustre-discuss] aacraid kernel panic caused failover
>>>>
>>>> Had some crazyness happen to our lustre system. We have two
OSSs, both
>>>> identical sun x4140 servers and on only one of them have
I''ve seen
>>>> this pop up in the kernel messages and then a kernel panic. The
panic
>>>> seemed to then spread and caused the network to go down and the
second
>>>> OSS to try to failover(or failback?). Anyways
''splitbrain'' occurred
>>>> and I was able to get in and set them straight. I researched
this
>>>> aacraid module messages and so far all I can find says to
increase the
>>>> timeout, but these are old messages and currently they are set
to 60.
>>>> Anyone else have any ideas?
>>>>
>>>> aacraid: Host adapter abort request (0,0,0,0)
>>>> aacraid: Host adapter reset request. SCSI hang ?
>>>> AAC: Host adapter BLINK LED 0xef
>>>> AAC0: adapter kernel panic''d ef.
>>>>
>>>> --
>>>> Personally, I liked the university. They gave us money and
facilities,
>>>> we didn''t have to produce anything! You''ve
never been out of college!
>>>> You don''t know what it''s like out there!
I''ve worked in the private
>>>> sector. They expect results. -Ray Ghostbusters
>>>> _______________________________________________
>>>> Lustre-discuss mailing list
>>>> Lustre-discuss at lists.lustre.org
>>>> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>>>>
>>>
>>>
>>>
>>> --
>>> Personally, I liked the university. They gave us money and
facilities,
>>> we didn''t have to produce anything! You''ve never
been out of college!
>>> You don''t know what it''s like out there!
I''ve worked in the private
>>> sector. They expect results. -Ray Ghostbusters
>>>
>>
>>
>>
>
> --
> --------------------------------------------------------------------
> Thomas Roth
> Department: Informationstechnologie
> Location: SB3 1.262
> Phone: +49-6159-71 1453  Fax: +49-6159-71 2986
>
> GSI Helmholtzzentrum f?r Schwerionenforschung GmbH
> Planckstra?e 1
> 64291 Darmstadt
> www.gsi.de
>
> Gesellschaft mit beschr?nkter Haftung
> Sitz der Gesellschaft: Darmstadt
> Handelsregister: Amtsgericht Darmstadt, HRB 1528
>
> Gesch?ftsf?hrung: Professor Dr. Dr. h.c. Horst St?cker,
> Dr. Hartmut Eickhoff
>
> Vorsitzende des Aufsichtsrates: Dr. Beatrix Vierkorn-Rudolph
> Stellvertreter: Ministerialdirigent Dr. Rolf Bernhardt
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss