(Slightly O/T) Perc 3/DI RAID5 rebuild headaches

[Nick_Parrott at Dell.com]

I know it's downtime, but it's certainly the way I'd approach at this
stage;

 

download CentOS live CD from linux.dell.com with OMSA installed

boot machine from CD, open OMSA

pull controller log - Storage > PERC 3/Di > Information/Configuration >
Drop down box > Export log

 

send me, or Dell tech the controller log and maybe we'll tell you WHY it
won't rebuild. could be bad parity (use cons check to fix this, however
only on an optimal array) or replacement disk may be a few sectors short
to rebuild.. the list is endless TBH, so send it over

 

if you want to pull controller log from your current OS, only offering
is the TTY utility that we distribute in .rpm - tech will supply this to
you, but I guess you could just extract the binary and run it, then
you'll get a controller log on the current OS.. which you might be able
to advise us on??? what you running?

 

Regards,

 

Nick

 

 

From: linux-poweredge-bounces at dell.com
[mailto:linux-poweredge-bounces at dell.com] On Behalf Of Hostmaster
Sent: 19 November 2007 11:33
To: linux-poweredge-Lists
Subject: (Slightly O/T) Perc 3/DI RAID5 rebuild headaches

 

Hi,

Has anyone else had problems rebuilding RAID5 arrays on a PERC3/DI? I
have a stubborn old PE2500 with the aforementioned controller in it,
running the latest firmware I can find (2.8.1.6098), and it had a
three-disk RAID5 array when a disk failed. As usual, pulled the disk,
and swapped it out for a known good disk (same model, same capacity), it
shows up in the PERC BIOS, but it downright refuses to rebuild onto it,
even if the disk is assigned either Array or Dedicated hotspare, and if
I force a consistency check, it fails immediately.

 

The server is still under extended warranty and this problem has been
raised with Dell Tech Ireland, however they are completely stumped on
how to fix it. The only reference I could find was
http://www.experts-exchange.com/Storage/Q_21751705.html (scroll down to
the bottom), but although I have a backup of this machine, I would
rather not blitz the array unless I have absolutely no choice.

 

Has anyone got any magical voodoo incantations I can perform to get this
array rebuilt?

 

Best Regards, 

Richard Garner (A+, N+, AMBCS, MOS-O) 
Hostmaster 

Computer Service Centre 
web     http://www.computerservicecentre.com
<http://www.computerservicecentre.com/>   

 

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