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  3. October 2014

Re: Stacked backups Was: Virtualizing Tape VIOS vs IBM 1

Kirk,

Same card is not same drive. I said no rmtX device (drive) can be assigned
to multiple vhosts at the same time. If your library has multiple drives
then go ahead. But if it's only multiple paths to the same drive and
AIX/VIOS sees it like that and therefore creates a single rmtX device
you'll hit that problem anyways.

Best Regards,

Roberto

On Wed, Oct 8, 2014 at 6:04 AM, Kirk Goins <kirkgoins@xxxxxxxxx> wrote:

I am not using the library in library mode, but rather in SEQ mode so that
is not an issue. Sue Baker from IBM does say I can place the card in VIOS
and virtualize it in such a way that 2 partitions can use using the same
card at the same time as long as they are using different SAS ports. I will
know first hand in a few weeks once I standup my Power8 that is on order.

On Sun, Oct 5, 2014 at 10:52 AM, Roberto José Etcheverry Romero <
yggdrasil.raiker@xxxxxxxxx> wrote:

Kirk, you wont be able to. A virtualized SAS drive cannot be assigned to
more than one partition at the time. Your script will have to use an SSH
command to move the rmtX to the next partition, I've just done that. So
either move the entire card the same way you always did or lose the
library
feature and virtualize with VIOS AND use a script to move it (not worth
it
in my opinion).

Best Regards,

Roberto


On Sat, Oct 4, 2014 at 11:45 PM, Kirk Goins <kirkgoins@xxxxxxxxx> wrote:

Timing takes a little practice... I know how each of my backups take
with a
little fudge factor tossed. Since all my partitions are IBM and I have
Object Connect setup ( you could do this other ways ) I do the
following.
I have a dataarea defined on each partition. When backup A finishes I
first
vary off the drive and via a CL tell the HMC to Move the SAS Adapter to
partition #B. Then I set a value in that dataarea and SAVRSTOBJ to the
next partition where a program is checking the dataarea for the OK to
start.. I then set the dataarea back to a value for You Can't Start Yet
and
end partition A.
Repeat until al the backups are completed. With the new Power8 I am
going
to switch to virtualized tapes drives on a single SAS card owned by
VIOS
so
I won't have to worry about have the HMC move the card and I can run
both
drives a the same time with a single card fro 2 partitions.

On Fri, Sep 26, 2014 at 6:11 AM, <rob@xxxxxxxxx> wrote:

Ok. Like I said, I would be too worried about the timing of each
lpar's
backup. We already have the tapes needed. And what we send back and
forth with Iron Mountain fits into the cases used. So it's not a
grind
for us.


Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1
Group Dekko
Dept 1600
Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>
Date: 09/26/2014 09:05 AM
Subject: RE: Stacked backups Was: Virtualizing Tape VIOS vs
IBM
1
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Rob,

Already asked years back.
A BRMS volume can only be owned and used by one LPAR (system).
I wanted to use the same volume for all my nightly backups, and dups.
Could not be done.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf
Of
rob@xxxxxxxxx
Sent: Friday, September 26, 2014 7:47 AM
To: Midrange Systems Technical Discussion
Subject: Stacked backups Was: Virtualizing Tape VIOS vs IBM 1

Kirk,

Have you thought about submitting a DCR, or a COMMON requirement, to
allow
BRMS to stack multiple lpars onto a single tape?
IDK if we could use that as I would be concerned about timing the
saves
on
each lpar.

Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600
Mail
to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: Kirk Goins <kirkgoins@xxxxxxxxx>
To: Midrange Systems Technical Discussion <
midrange-l@xxxxxxxxxxxx

Date: 09/25/2014 05:31 PM
Subject: Re: Virtualizing Tape VIOS vs IBM 1
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Because we Stack our backups from multiple LPARs on a single tape
each
night we can't use BRMS ans SEQ. Mode works just fine for us.
Thanks I
probably won't hear back from Techline for Several More Business
Days.



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