Re: Concurrent maintenance on i5 520 disks

We've had two drives fail on our 520 since September. The second failure 
was actually the replacement of the first that failed. The CE and myself, 
double-checked each time to make sure the right drive got pulled. 

Ron Adams
Information Technology Group
Crane Valves
9200 New Trails Dr. Suite 200
The Woodlands, TX 77385






Neil Palmer/DPS <neilp@xxxxxxxxxxx>
Sent by: midrange-l-bounces@xxxxxxxxxxxx
02/07/2005 06:42 PM
Please respond to Midrange Systems Technical Discussion

 
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        Subject:        Concurrent maintenance on i5 520 disks


Had a customer with a disk that failed in a RAID set on their i5 model 
520.  Service Director/Agent  sent in problem log entry, IBM hardware rep 
showed up with disk to do concurrent maintenance, went into SST, flagged 
the failing disk to get the light to blink  -  pulled the wrong disk and 
system went down.

Just wondering if anyone else has experienced this?

Now I can't assign 100% of the blame to the hardware rep.  Some (a lot?) 
of the blame for this has to go to the engineers who designed the 
packaging for the 4326 (35GB) and similar disks for the 5xx models.  It is 

an ABSOLUTELY AWFUL design as far as the placement of the LED light on the 

drive goes.  The light is so far away at one end of the disk that it is 
very easy to become confused and think the light is for the next drive.

...Neil
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