Re: LPAR issue

[Jeffry Kennedy <jkennedy@xxxxxxxxxxxxx>]

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It is true that you can't share Disk drives, but you are sharing the processor
and memory. If you have devices on there on IOA/IOP , they can be moved between
LPARS (like standalone tape drives). The only optical device for sharing would
be something like the new external DVD/CDROM box.

We haven't finished our LPAR setup because be don't have an optical device for
the test LPAR. We upgraded from a 720 to 820, neither optical device (old one
in 720 or new one in 820) is usable by the LPAR because of the IOA/IOP issue.
It will cost about $3800 to buy the external DVD/CDROM.

This issue was missed by the IBM Business partner and Rochester when they
reviewed the planned configuration.

The ethernet issue is covered by a Virtual Lan between LPAR's.

Joe Pluta wrote:

> Hey Al (and anyone else who has an opinion <grin>)!
>
> I've been advised that within an LPAR'd system the partitions don't
> necessarily work and play with one another.  For example, you cannot share
> tape drives or optical drives.  You cannot share Ethernet cards.  Different
> partitions must have their own RAID arrays.
>
> If someone is trying to use an LPAR to reduce the cost of having multiple
> iSeries boxes, it seems that duplication of hardware like this could be a
> significant cost.  I'd much rather be able to "pool" my hardware resources
> like I can on any decent Microsoft network and share them among my
> partitions.
>
> Is my information correct, and if so, is my opinion misguided?  (Well, more
> misguided than usual?)
>
> Joe
>
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