× 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.




I can speak to the fibre tape library attachment, it works great. I've got three older dev boxes mounted to two fibre LTO tape drives in a remote
library. I'm about to reconfigure my 3 prod boxes locally on two LTO 3 tape drives here. Right now they're directly attached to three tape drives
and we want to give up one of those slots to our TSM environment. Right now 7 x LTO3 tape drives isn't enough. The fibre attachment allows a simple
connection without the complication of movement of resources. From my recent reading, there are adapters in the works with i support that will allow
connection from all LPAR's to connect to a tape drive/library from a single adapter. That means you'd house one adapter connected to a tape library
and share out connection to that adapter/library just as you would native adapters. You just create "virtual" adapters connected to that physical
adapter.

Bill Epperson Jr.
Systems Communications Analyst
Memorial Health System
(719) 365-8831





Larry Bolhuis <midrange@xxxxxxxxxxxx>

Sent by: midrange-l-bounces@xxxxxxxxxxxx To
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
cc
11/26/2009 08:44 PM
Subject
Re: Newbie LPAR question
Please respond to
Midrange Systems Technical Discussion
<midrange-l@xxxxxxxxxxxx>






Dr Hansen,

Moving the IOP/IOA or newer style Smart IOP combinations is quite easy
but requires the tape device be varied off on the source partition and
then varied back on when it becomes available on the target partition.
This takes a few minutes. The process can be automated by running shell
scripts using SSH that execute the proper move commands on the HMC.
These moves can also be schedule on the HMC but of course that can run
into problems if the source partition isn't ready to give up the tape
drive for example.

Another option is to use fiber attached tape with a fiber card on each
partition and a fiber switch. The beauty of this set up is that no
switching is required.

I haven't worked with it yet but the virtual SCSI facility but I THINK
that it's intended to work like the fiber setup and wouldn't require
switching.

DrFranken



William A. Hansen wrote:
I've been researching LPAR, PowerVM, etc. and seem to have missed a basic concept.

Suppose you have a system with one tape device. What stops you from (or what is the disadvantage of) moving the IOA and tape drive from one
partition to another as needed?
If this is possible, what is the big deal about the newly announced virtual SCSI tape facility for blades (not to be confused with IBM i virtual
tape)? It seems that both approaches require using the IVM or HMC to move a resource from one partition to another.

Thanks,

Bill

William A. Hansen
whansen@xxxxxxxxxxxxx
Manta Technologies Inc.
Toll-free: (800) 406-2682 x 101
Direct: (303) 862-4562

--
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 ...

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.