Chuck,
There are some patches to VOLUTIL and DISCFREE.
Are you sure your customer is up to date?
I don't have a problem with defraging with Raid. It just depends on the status of the system.
I find if you can keep the percentage of free space greater than 20-25% you stand a better chance of NOT getting fragmented.
With that being said, I do have one customer, that we defrag regularly. Of course they have about 400 drives and the B-Tree extent table
has a tendency to fill up and crash the system. We even use B-Free from Allegro.
On a quarterly basis, it helps to defragment the Omnidex indexes.
-Craig
From: Chuck Trites <[log in to unmask]>
To: [log in to unmask]
Sent: Friday, December 12, 2014 11:18 AM
Subject: Using Volutil to defragment
I have a customer with VOLUTIL built into a backup job stream to defrag disks. Disks are 2 internal drives and 4 drives on an Autoraid array. On several occasions the 3000 hangs and needs to be rebooted. On one occasion it hung while executing contigvol on Ldev 1. On others it hangs while trying to setup for Volutil using discfree A","LDEV";format="contigvol "+word(R,,3). I don't see the value in doing this procedure during backup streams at all, but am looking for feedback in doing it especially on the drives in the Autoraid.
TIA,
Chuck [log in to unmask] Consulting, Inc.59 Doe Ave.Laconia, NH 03246Phone: (603) 219-1500
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