Re: 7.3 upgrade & disk space requirement

Currently on OS/400 - IBMi partitions all native attached drives must be
the same physical capacity.
So All 35GB or ALL 70GB or 128GB or 283GB in the Same Set. Same is true for
mirrored pairs.
So with 7.3 and 70GB physical drives unless you monkey with RAID or Mirror
the loadsource it may be an issue.

On Tue, May 30, 2017 at 3:55 PM, Christopher Bipes <
chris.bipes@xxxxxxxxxxxxxxx> wrote:

Is it still are requirement that all the disks in a RAID set are the same
size or only the amount of space on each drive will be limited to the
smallest drive?

If so, you will need to build a RAID set of drives with at least 70GB
usable each, after the RAID is configured.

You can mirror two drives or as small as 3 drive RAID-5 set. For
performance I would build a RAID set with 4 or more drives. But newer
controllers negate that old rule of thumb.

What are the current rules?

More importantly, what hardware do you have, especially RAID card?


Chris Bipes
Director of Information Services
CrossCheck, Inc.

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Kirk Goins
Sent: Tuesday, May 30, 2017 3:42 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Re: 7.3 upgrade & disk space requirement

Only the Loadsource needs to have at least 70GB of usable space.
So if you if your loadsource is a 79GB drive and it is part of a raid set
it won't have 7oGB of Usable Space. WRKDSKSTS will show you the usable
space after raid. All the other drives can be any supported disk size.


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