ZFS-8000-8A: assistance needed

[Ruslan Makhmatkhanov]

Maurizio Vairani wrote on 09/08/2016 17:01:
> Il 08/09/2016 15:16, Ruslan Makhmatkhanov ha scritto:
>> Maurizio Vairani wrote on 09/08/2016 15:55:
>>> Il 08/09/2016 13:46, Ruslan Makhmatkhanov ha scritto:
>>>> Maurizio, much thanks for your answers. It made some things clearer,
>>>> but some are still isn't. Please see my comments inline:
>>>>
>>>> I checked the disks with that labels and all of them seems ok:
>>>>
>>>> gpart show excerpt:
>>>> """
>>>> Geom name: mfid2
>>>> 1. Name: mfid2p1
>>>>    label: drive-07
>>>> Geom name: mfid3
>>>> 1. Name: mfid3p1
>>>>    label: drive-08
>>>> Geom name: mfid4
>>>> 1. Name: mfid4p1
>>>>    label: drive-09
>>>> """
>>>>
>>>> I checked them all with smartctl -a -d sat /dev/pass2[3,4] and got
>>>>
>>>> """
>>>> SMART Status not supported: ATA return descriptor not supported by
>>>> controller firmware
>>>> SMART overall-health self-assessment test result: PASSED
>>>> """
>>>>
>>>> And they also seems ok in mfiutil:
>>>> root:~ # mfiutil show volumes
>>>> mfi0 Volumes:
>>>>   Id     Size    Level   Stripe  State   Cache   Name
>>>>  mfid0 (  838G) RAID-0     256K OPTIMAL Disabled
>>>>  mfid1 (  838G) RAID-0     256K OPTIMAL Disabled
>>>>  mfid2 (  476G) RAID-0     256K OPTIMAL Disabled
>>>>  mfid3 (  476G) RAID-0     256K OPTIMAL Disabled
>>>>  mfid4 (  476G) RAID-0     256K OPTIMAL Disabled
>>>>  mfid5 (  167G) RAID-0      64K OPTIMAL Writes
>>>>  mfid6 (  167G) RAID-0      64K OPTIMAL Writes
>>>>  mfid7 (  476G) RAID-0      64K OPTIMAL Writes
>>>>
>>>> I only wasn't able to read the smart status of mfid0/mfid1 (they are
>>>> SCSI-6 drives according to mfiutil):
>>>>
>>>> smartctl -d scsi -a /dev/pass0[1]
>>>> Standard Inquiry (36 bytes) failed [Input/output error]
>>>> Retrying with a 64 byte Standard Inquiry
>>>> Standard Inquiry (64 bytes) failed [Input/output error]
>>>>
>>>> But I'm not sure if I'm using correct type in -d switch (tried all of
>>>> them). This drives doesn't seems participate in that zpool, but I'm
>>>> interested in checking them too.
>>>>
>>> I don't know  the  LSI MegaRAID SAS controller but  according to
>>> https://www.smartmontools.org/wiki/Supported_RAID-Controllers
>>> seems it is supported in FreeBSD. But what is the output of the command
>>> "smartctl --scan" ?
>>>
>>> Regards,
>>> Maurizio
>>
>> Sure, it is supported.
>>

[...]

>>
>> So it looks like mfid0 != pass0. And actually pass1 is an interface
>> for mfid0? Right?
>>
> Yes, seems to me too.
>
> But, unfortunately, "mrsas (4) does not allow smartctl to access
> S.M.A.R.T data from physical drive hidden under /dev/daX"
>
> bug: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212211
>
> Maurizio


This makes sense now. Thank you! We'll try check the controller port and 
cables as suggested by gpalmer@ because error rates on both drives are 
equal and this is strange. And if this doesn't make a difference, then 
replace the drives.

-- 
Regards,
Ruslan

T.O.S. Of Reality