[problem] aac0 does not respond

[Vladimir Ermakov]

Vladimir Ermakov wrote:
> Hello, All
>
> Describe my problem:
> have volume RAID-10 (SAS-HDD x 6) on Adaptec RAID 5805
> 2 HHD of 6  have errors in smart data (damaged)
> i am try read file /var/db/mysql/ibdata1 from this volume
> system does not respond ( lost access to ssh ) after read 6GB data 
> from this file
> and print debug messages on ttyv0
>
> As to prevent the emergence of this problem?
> As monitor the status of RAID-controller?
>
similar problem
http://lists.freebsd.org/pipermail/freebsd-scsi/2008-June/003524.html

/Vladimir Ermakov