Re: "cannot start dirty degraded array"

[Bill Davidsen <davidsen@tmr.com>]

Kyler Laird wrote:
> I'm in a bind.  I have three RAID6s on a Sun X4540.  A bunch of disks
> threw error all of a sudden.  Two arrays came back (degraded) on reboot
> but the third is having problems.  
>   

Just a thought, when multiple units have errors at the same time, I 
suspect a power issue. And if these are real SCSI drives, it's possible 
for a drive to fail in such a way that it glitches the SCSI bus and 
causes the controller to think that multiple drives doing concurrent 
seeks have failed. I saw this often enough to have a script to force the 
controller to mark drives good and then test them one at a time when I 
was running ISP servers.

-- 
Bill Davidsen <davidsen@tmr.com>
  Obscure bug of 2004: BASH BUFFER OVERFLOW - if bash is being run by a
normal user and is setuid root, with the "vi" line edit mode selected,
and the character set is "big5," an off-by-one error occurs during
wildcard (glob) expansion.