LSI SAS 9300-8i weird ZFS checksum errors
George Kontostanos
gkontos.mail at gmail.com
Fri Dec 26 10:21:15 UTC 2014
On Thu, Dec 25, 2014 at 11:37 PM, Steven Hartland <killing at multiplay.co.uk>
wrote:
>
> On 25/12/2014 21:03, George Kontostanos wrote:
>
>
>
> On Thu, Dec 25, 2014 at 9:31 PM, Steven Hartland <killing at multiplay.co.uk>
> wrote:
>
>>
>> On 25/12/2014 14:39, George Kontostanos wrote:
>>
>>> Hello, list and Merry Christmas to all
>>>
>>> I am facing some weird checksum errors during scrub. The configuration is
>>> the following:
>>>
>>> Board: Supermicro Motherboard X10DRi-T4+ (
>>> http://www.supermicro.com/products/motherboard/xeon/c600/x10dri-t4_.cfm)
>>> Controller: LSI SAS 9300-8i (
>>> http://www.lsi.com/products/host-bus-adapters/pages/lsi-sas-9300-8i.aspx
>>> )
>>> HDD: 21X6TB Western Digital WD60EFRX
>>> HDD: 2XIntel SATA 600GB Solid-State Drive SSDSC2BB600G401 DC
>>> S3500
>>> (SWAP, ZIL, CACHE)
>>> Chassis: Supermicro 847BE1C-R1K28LPB 4U Storage Chassis
>>> RAM: 64 GB
>>>
>>> I installed initially FreeBSD 10.1-RELEASE created one pool consistent
>>> by 3
>>> X7disk VDEVs in RAIDZ3. I used NFS to start copying some data. After
>>> copying around 3TB I initiated a scrub.
>>> The result was the following: http://pastebin.com/rswgCY2A and
>>> http://pastebin.com/DQ2urGXk
>>>
>>> I tried to flash the controller but the LSI utility did not recognize the
>>> controller. I installed FreeBSD 9.3-RELEASE and used LSI's mpslsi3
>>> driver.
>>> I was able to flash the latest bios and firmware that way.
>>>
>>> LSI Corporation SAS3 Flash Utility
>>> Version 07.00.00.00 (2014.08.14)
>>> Copyright (c) 2008-2014 LSI Corporation. All rights reserved
>>>
>>> Adapter Selected is a LSI SAS: SAS3008(C0)
>>>
>>> Controller Number : 0
>>> Controller : SAS3008(C0)
>>> PCI Address : 00:82:00:00
>>> SAS Address : 500605b-0-06ce-27e0
>>> NVDATA Version (Default) : 06.03.00.05
>>> NVDATA Version (Persistent) : 06.03.00.05
>>> Firmware Product ID : 0x2221 (IT)
>>> Firmware Version : 06.00.00.00
>>> NVDATA Vendor : LSI
>>> NVDATA Product ID : SAS9300-8i
>>> BIOS Version : 08.13.00.00
>>> UEFI BSD Version : 02.00.00.00
>>> FCODE Version : N/A
>>> Board Name : SAS9300-8i
>>> Board Assembly : H3-25573-00E
>>> Board Tracer Number : SV32928040
>>>
>>> I recreated the pool again and started writing data via NFS again. After
>>> 3
>>> TB of data I started a scrub and I am still getting checksum errors
>>> though
>>> there are no messages regarding the drives anymore in /var/log/messages
>>>
>>> pool: Pool
>>> state: ONLINE
>>> status: One or more devices has experienced an unrecoverable error. An
>>> attempt was made to correct the error. Applications are unaffected.
>>> action: Determine if the device needs to be replaced, and clear the
>>> errors
>>> using 'zpool clear' or replace the device with 'zpool replace'.
>>> see: http://illumos.org/msg/ZFS-8000-9P
>>>
>>> scan: scrub in progress since Thu Dec 25 08:46:21 2014
>>> 2.28T scanned out of 5.54T at 816M/s, 1h9m to go
>>> 11.9M repaired, 41.26% done
>>> config:
>>>
>>> NAME STATE READ WRITE CKSUM
>>> Pool ONLINE 0 0 0
>>> raidz3-0 ONLINE 0 0 0
>>> gpt/WD-WX41D94RN5A3 ONLINE 0 0 15 (repairing)
>>> gpt/WD-WX41D948YE1U ONLINE 0 0 14 (repairing)
>>> gpt/WD-WX41D94RN879 ONLINE 0 0 16 (repairing)
>>> gpt/WD-WX21D947NC83 ONLINE 0 0 24 (repairing)
>>> gpt/WD-WX21D947NT77 ONLINE 0 0 15 (repairing)
>>> gpt/WD-WX41D948YAKV ONLINE 0 0 19 (repairing)
>>> gpt/WD-WX21D9421SCV ONLINE 0 0 20 (repairing)
>>> raidz3-1 ONLINE 0 0 0
>>> gpt/WD-WX21D9421F6F ONLINE 0 0 16 (repairing)
>>> gpt/WD-WX41D948YPN4 ONLINE 0 0 14 (repairing)
>>> gpt/WD-WX21D947NE2K ONLINE 0 0 22 (repairing)
>>> gpt/WD-WX41D948Y2PX ONLINE 0 0 19 (repairing)
>>> gpt/WD-WX41D94RNAX7 ONLINE 0 0 17 (repairing)
>>> gpt/WD-WX21D947N1RP ONLINE 0 0 12 (repairing)
>>> gpt/WD-WX21D94216X7 ONLINE 0 0 20 (repairing)
>>> raidz3-2 ONLINE 0 0 0
>>> gpt/WD-WX41D948YAHP ONLINE 0 0 25 (repairing)
>>> gpt/WD-WX21D947N06F ONLINE 0 0 18 (repairing)
>>> gpt/WD-WX21D947N3T1 ONLINE 0 0 21 (repairing)
>>> gpt/WD-WX41D94RNT7D ONLINE 0 0 5 (repairing)
>>> gpt/WD-WX41D948Y9VV ONLINE 0 0 18 (repairing)
>>> gpt/WD-WX41D94RNS62 ONLINE 0 0 24 (repairing)
>>> gpt/WD-WX21D9421ZP9 ONLINE 0 0 28 (repairing)
>>> logs
>>> mirror-3 ONLINE 0 0 0
>>> gpt/zil0 ONLINE 0 0 0
>>> gpt/zil1 ONLINE 0 0 0
>>> cache
>>> gpt/cache0 ONLINE 0 0 0
>>> gpt/cache1 ONLINE 0 0 0
>>>
>>> errors: No known data errors
>>>
>>> This is really driving me crazy since smartmon tools do not display any
>>> errors on the drives.
>>>
>>> Any suggestions are most welcomed!!!
>>>
>>> Check for bad hardware, first guess would be memory, next would be
>> hotswap backplane.
>>
>> Regards
>> Steve
>> _______________________________________________
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>
> Hi Steve,
>
> Memory looks good in memtest. I am not sure what you mean
> regarding hotswap backplane.
>
> How are the disks attached?
>
> The most common way is your controller being attached to a hotswap
> backplane, which you then plug the disks into.
>
> Unfortunately these backplanes are one of the most common sources of
> issues, especially at higher speeds and even more so if they aren't direct
> passthrough i.e. they are actually expanders which processing of their own.
>
> You report the chassis is a 847BE1C-R1K28LPB which includes such
> expanders, specifically BPN-SAS3-846EL1 and BPN-SAS3-826EL1.
>
> If this is how you are connecting the disk I would strongly advise
> eliminating this from the equation by connecting the disks direct to the
> LSI controller.
>
> You can also check to see if there are any firmware updates for the
> expanders.
>
> Regards
> Steve
>
Thanks for your reply Steve. Unfortunately I am thousands of miles away
from the DC. In another continent actually!
I have contacted SuperMicro support to see if they do have any firmware
updates.
I might also need to find someone to go to the DC and physically attach the
disks directly to the controller.
Best!
--
George Kontostanos
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