GEOM problems again...

[Johan Ström]

On 10 jul 2006, at 11.09, Johan Ström wrote:

>
> On 21 maj 2006, at 11.16, Johan Ström wrote:
>
>> Hi
>>
>> I've had problems before with GEOM mirror and my SATA drives, and  
>> i've posted about it here before too. The solution seemd to be a  
>> change of motherboard, this reduced the crash very much (and also  
>> the speeds archieved was greatly improved, from 10-15MB/s to  
>> 40-50MB/s..).
>> However after the change i had one or two crashes, but now it has  
>> been running for well over 50-60 days or so without any problems.
>> Then, 11 days ago I upgraded to 6.1... And now I got these  
>> "crashe"s again (the mirror is crashed that is, the system still  
>> runs fine):
>>
>> May 21 02:04:58 elfi kernel: ad6: FAILURE - device detached
>> May 21 02:04:58 elfi kernel: subdisk6: detached
>> May 21 02:04:58 elfi kernel: ad6: detached
>> May 21 02:04:58 elfi kernel: GEOM_MIRROR: Device gm0s1: provider  
>> ad6s1 disconnected.
>> May 21 02:04:58 elfi kernel: g_vfs_done():mirror/gm0s1f[READ 
>> (offset=11006308352, length=2048)]error = 6
>> May 21 02:04:58 elfi kernel: g_vfs_done():mirror/gm0s1f[READ 
>> (offset=164847927296, length=131072)]error = 6
>> May 21 02:04:58 elfi kernel: g_vfs_done():mirror/gm0s1f[READ 
>> (offset=256680296448, length=32768)]error = 6
>>
>>
>> Some info about the controller and disks:
>>
>> May  9 22:46:52 elfi kernel: ata1: <ATA channel 1> on atapci0
>> May  9 22:46:52 elfi kernel: atapci1: <nVidia nForce2 Pro SATA150  
>> controller> port  
>> 0xec00-0xec07,0xe880-0xe883,0xe800-0xe807,0xe480-0xe483,0x7f00-0x7f0f 
>> ,0x7c0
>> 0-0x7c7f irq 22 at device 11.0 on pci0
>>
>> May  9 22:46:52 elfi kernel: ad4: 286188MB <Maxtor 7L300S0  
>> BANC1G10> at ata2-master SATA150
>> May  9 22:46:52 elfi kernel: ad6: 286188MB <Maxtor 7L300S0  
>> BANC1G10> at ata3-master SATA150
>> May  9 22:46:52 elfi kernel: GEOM_MIRROR: Device gm0s1 created  
>> (id=4118114647).
>> May  9 22:46:52 elfi kernel: GEOM_MIRROR: Device gm0s1: provider  
>> ad4s1 detected.
>> May  9 22:46:52 elfi kernel: GEOM_MIRROR: Device gm0s1: provider  
>> ad6s1 detected.
>> May  9 22:46:52 elfi kernel: GEOM_MIRROR: Device gm0s1: provider  
>> ad6s1 activated.
>> May  9 22:46:52 elfi kernel: GEOM_MIRROR: Device gm0s1: provider  
>> ad4s1 activated.
>> May  9 22:46:52 elfi kernel: GEOM_MIRROR: Device gm0s1: provider  
>> mirror/gm0s1 launched.
>> May  9 22:46:52 elfi kernel: Trying to mount root from ufs:/dev/ 
>> mirror/gm0s1a
>>
>> Anyone got any new clues? Afaik the disks should be working fine  
>> (they are 6 months old and this same problem has occured multiple  
>> times...)
>>
>> Hope to solve this ;)
>>
>> Thanks
>> Johan
>>
>
> Here we go again
>
> Jul  7 16:20:09 elfi kernel: ad4: FAILURE - device detached
> Jul  7 16:20:09 elfi kernel: subdisk4: detached
> Jul  7 16:20:09 elfi kernel: ad4: detached
> Jul  7 16:20:09 elfi kernel: GEOM_MIRROR: Device gm0s1: provider  
> ad4s1 disconnected.
> Jul  7 16:20:09 elfi kernel: g_vfs_done():mirror/gm0s1f[READ 
> (offset=88896847872, length=32768)]error = 6
>
> However no read read timeouts etc as before, just this. 18 days  
> uptime this time (i've rebooted for other reasons since last mail).  
> It always seems to be ad4 that is disconnecting.. I'm going to do  
> some disk tests on it but i doubt it will give anything since i've  
> had similiar problems from day one (did tests at that time w/o  
> problems) with this gmirror setup (new disks).
>
> Johan

Followup, I ran over the disk with Maxtors own test program, full  
length test. Not a single problem.
After reboot the raid is rebuilding fine:

GEOM_MIRROR: Device gm0s1: rebuilding provider ad4s1.

As usual it seems i cannot get the controller/driver to redetect the  
disk using atacontrol etc..

Johan
>
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