RE: Load-Src in a Raid5 set

[Jeff Bull <Jeff.Bull@xxxxxxxxxxxxxxx>]

... thanks for you replies.  Sorry for the delay in my response - the last
days on the course were quite hectic.

It looks like the answer was much as we (IBM lecturer and course students)
had guessed, i.e. will run but not IPL.

Many thanks again.

Jeffrey E. Bull
OS400 Software Support Consultant
 
IBM Certified AS/400 System Administrator 

tel.      +44 [0] 149 454 9533               swb.   +44 [0] 149 454 9400
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ITM Group Ltd, Latimer Square, White Lion Road, Amersham, Buckinghamshire,
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-----Original Message-----
From: Larry Bolhuis [mailto:lbolhuis@xxxxxxxxxx]
Sent: 04 March 2003 16:26
To: Midrange Systems Technical Discussion
Subject: Re: Load-Src in a Raid5 set


In my EXPERIENCE it will RUN with a failed load source it will NOT IPL
despite 
RAID protection. The SRC code displayed when IPL is attempted indicates a 
missing/failed load source. This does not make sense to me because I was of 
the impression that the disks units were masked to the OS by the RAID logic.

Requests to the failed unit should have been returned correctly by the RAID 
card. Nonetheless no matter what I tried (and I tried plenty with the failed

unit as well as a replacement unit installed) there was no way to replace
the 
bugger and rebuild it. Even IPLing from SLIC did not give me access to that 
raid set for rebuild.

  In my case the system had to be reloaded because some doofus turned the 
machine off rather than deal with the problem at the time it occurred. (Same

doofus who got to load all the CDs and PTFs.....)

  - Larry

Jeff Bull wrote:
> Hi all,
>       I'm on a course at present; the subject came up in general
> discussion, "will an AS400 / iSeries keep running if the load-src disk
fails
> while it is under RAID-5 protection?".
> 
> The general concensus was that it would continue to run, but would not
IPL.
> Has anyone been here and have the definitive answer?
> 
> I suspect the answer may be a 'that depends", but I like to know.
> 
> Jeffrey E. Bull


-- 
Larry Bolhuis           | IBM Certified Solutions Expert
Vice President          |     iSeries Technology V5 R1
Arbor Solutions, Inc.   |     e-business for AS/400 V4 R2
(616) 451-2500          | IBM Certified Specialist  AS/400
(616) 451-2571 -fax     |     RPG IV Developer
lbolhuis@xxxxxxxxxx     |     System Administrator for OS/400 V4 R4
www.arbsol.com          |     Professional Network Administrator
                         |       Network/Multiple Systems
                         |     Client Access


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