× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



You're talking about 4 HBAs not sharing an HBA between tape and disk. I would still keep the traffic separated but the original post was about on a single HBA. Then it branched into if the tape should be separated by physical card for tape mobility between partitions.

Now I do count 6 different connections and mixing connection types on a single HBA would not be advisable.

Also since your using fibre to get to the DASD, and the Tape is NPIV compliant (which implies an 8Gb fibre switch) why are the disk not NPIV capable? Non-IBM SAN that can't do NPIV?

--
Jim Oberholtzer
Chief Technical Architect
Agile Technology Architects


-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Mitchell, Dana
Sent: Monday, September 08, 2014 8:40 AM
To: Midrange Systems Technical Discussion
Subject: RE: Fiber Card - Mixing Disk and Tape OK?

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
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L)
mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please
take a moment to review the archives at
http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take
a moment to review the archives at
http://archive.midrange.com/midrange-l.




--
Kirk
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.



Attention: This electronic document and associated attachments (if any) may contain confidential information of the sender (SHAZAM Network) and is intended solely for use by the addressee(s). Review by unintended individuals is prohibited. If you are not the intended recipient: (i) do not read, transmit, copy, disclose, store, or utilize this communication in any manner; (ii) please reply to the sender immediately, state that you received it in error and permanently delete this message and any attachment(s) from your computer and destroy the material in its entirety if in hard copy format. If you are the intended recipient, please use discretion in any email reply to ensure that you do not send confidential information as we cannot secure it through this medium. By responding to us through internet e-mail, you agree to hold SHAZAM, Inc. and all affiliated companies harmless for any unintentional dissemination of information contained in your message. Thank you.
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.



As an Amazon Associate we earn from qualifying purchases.

This thread ...

Follow-Ups:
Replies:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.