Besides the age of the drives, the system move is also contributing to your disk failure rate. I had a customer move a system from Phoenix to NJ and spent the next few months replacing drives. They eventually got tired of the failures in a remote DR site and replaced the whole system (Cheaper than maintenance).
________________________________
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> on behalf of Armand Borick <armand@xxxxxxxxxxxxxxxxxx>
Sent: Tuesday, November 27, 2018 4:59:09 PM
To: Midrange Systems Technical Discussion
Subject: IBM i Disk system statistics
Hi Everyone!
I am the inheritor of a 9406-525 that we would like to use as a backup to our production 9406-810.
I have the system set up and running, but the disk drives keep throwing parity errors.
The new system has about 3TB of disk in the main LPAR, so I have been just pulling the bad drives out of the
array without replacing them.
My question is: Is there a way to display the error statistics for the drives in the array, so I can identify upcoming failures?
I ran the Surface Analysis about 2 weeks ago and it reported as OK.
This morning another unit reported a parity error.
That is the 4th to go bad since I brought up the system about 2 months ago.
(the array started out with 75 disks)
The system is just waiting right now, while I finish off some other projects.
The plan is to clone the applications and data, and use Journaling and remote data queues to
keep the data files up to date.
I am not inclined to load up all the files just to have the system start dropping drives.
I would like to identify the worst of the remaining drives, and remove them.
My production box only has 180GB on it, so there is plenty of room.
I am trying to pitch the i as a good platform for high availabliity, but its a tough sell with drives dropping dead left and right.
I have a bunch of Milleneals in management here who think Windows servers are the best thing, and IBM i is "legacy".
Any suggestions?
Thanks!
Armand Borick
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