Just to clarify:
Is mixing disk on one port, and tape on the other port of a 2 port card not a good thing to do? We are planning a configuration for a development environment with a pair of 2 port fiber cards, one per VIOS lpar, one port of each to the disk, one port of each to virtual tape libraries. Since it's VIOS, moving the cards is not an issue for us. The disk does not support NPIV but the tape does.
Dana
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jim Oberholtzer
Sent: Sunday, September 07, 2014 9:08 AM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Fiber Card - Mixing Disk and Tape OK?
I concur, don't mix them. If only because absent NPIV if you want to move that device to another partition you'll take the disk with it. Bad thing there.
--
Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Kirk Goins
Sent: Saturday, September 06, 2014 12:30 PM
To: Midrange Systems Technical Discussion
Subject: Re: Fiber Card - Mixing Disk and Tape OK?
Great, Thanks
On Sat, Sep 6, 2014 at 9:32 AM, Roberto José Etcheverry Romero < yggdrasil.raiker@xxxxxxxxx> wrote:
It has been a golden rule of SAN's (And not only on IBM i) that you
DON'T mix Disk and Tape traffic on the same HBA. I would be surprised
if this changes in Power8. What i've seen done is using one port of an
HBA for Tape and the other for Disk (i've had good results doing it
that way) but i'm not sure if that is 100% supported.
Best Regards,
Roberto
On Sat, Sep 6, 2014 at 1:24 PM, Kirk Goins <kirkgoins@xxxxxxxxx> wrote:
Since the Power8's have limited cards slots ( no card expansions ),
I was wondering best practice when it come to using fiber cards with
both disk and tape attached.
#1 Can you mix Disk and Tape on the same fiber card?
#2 If you can should you or shouldn't do it?
Thanks
--
Kirk
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