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I'm picturing needing to spin it off to a separate tape once it's on the
other box as the unattractive portion (save files in a library on the other
box's nightly tape will be sufficient and simple). This is about a 15
minute save, so the time impact will be minimal like you're saying.
When saving to save files does compaction/compression come into play like
it does when saving to tape?
"Kendall Kinnear"
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SBTI.com> To
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05/03/2006 04:44 Subject
PM RE: how many are at v5r4 in
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<midrange-l@midra
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My guess is virtual tape would work just fine in the scenario you have.
That assumes you have the disk available. If you have the time you could
still use compaction in the same ASP. It will be slower than optimum but
I don't believe it would be any slower than save files. (That is
entirely a guess. I have no data to back up that statement other than a
gut feel.) It would be simpler than save files since you are only
messing with one object IMHO.
Kendall Kinnear
System i5 Architect
Stonebridge
Direct Telephone Number: 972.419.7709
Or Toll Free: 800.776.9755 x7709
Cell Phone Number: 214-676-3146
Fax Number: 972.455.7260
Kendall.Kinnear@xxxxxxxx
http://www.SBTI.com/
If you are interested in iSeries and application development, follow
Angus' blog at http://www.angustheitchap.com/
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
ChadB@xxxxxxxxxxxxxxxxxxxx
Sent: Wednesday, May 03, 2006 3:31 PM
To: Midrange Systems Technical Discussion
Subject: RE: how many are at v5r4 in production?
Yeah, that's what i'm picturing Virtual Tape to involve from reading the
Redbook. We have a pretty simple need where we're moving one of our
boxes
out to a location in our plant (3/4 mile away) where we don't want to
visit
every day to change backup tapes. We were curious to see if it would
help
us much with doing the backup (3 small libraries and the IFS to cover
Domino and WAS) out there (automated thru a program) to virtual tape and
then sending the virtual tape to a box here to be either spun to tape or
covered by the local box's nightly backup.
It looks like for our purposes it may be much simpler to save the remote
data to several save files, ftp them to a library on a local box, and
then
include that library in the local box's nightly.
It may come in handy for some other uses in the future i'm sure...
"Kendall Kinnear"
<Kendall.Kinnear@
SBTI.com>
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05/03/2006 04:13
Subject
PM RE: how many are at v5r4 in
production?
Please respond to
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<midrange-l@midra
nge.com>
Chad,
I talked to a different beta customer last week and he loved the virtual
tape support. From talking to him he set it up using the recommended
method Debbie Saugan discussed at COMMON. That would be a separate ASP
with enough drives to handle the I/O workload. The other major thing you
need to watch out for is: there is effectively no
compression/compaction. By that I mean that the recommendation is that
you do not use the compaction parameter because it will slow down the
virtual tape performance since there is no hardware assist like there is
on physical tape drives. The major problem with there is that if you
want to use virtual tape to backup 1TB of data you need 1TB of free
space for the virtual tape images.
My best advice is: Plan, Plan, Plan, Test, Plan some more, test some
more!!
Kendall Kinnear
System i5 Architect
Stonebridge
Direct Telephone Number: 972.419.7709
Or Toll Free: 800.776.9755 x7709
Cell Phone Number: 214-676-3146
Fax Number: 972.455.7260
Kendall.Kinnear@xxxxxxxx
http://www.SBTI.com/
If you are interested in iSeries and application development, follow
Angus' blog at http://www.angustheitchap.com/
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
ChadB@xxxxxxxxxxxxxxxxxxxx
Sent: Wednesday, May 03, 2006 2:43 PM
To: Midrange Systems Technical Discussion
Subject: Re: how many are at v5r4 in production?
Al,
Can you elaborate on what you mention about virtual tape
performance?
I just read most of the virtual tape Redbook yesterday and was surprised
to
learn about how it was structured (I had only heard some general
announcements about it).
Al Barsa
<barsa@barsaconsu
lting.com>
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05/03/2006 03:17
Subject
PM Re: how many are at v5r4 in
production?
Please respond to
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<midrange-l@midra
nge.com>
I am still at pre-G/A code, because IBM is having a problem shipping my
G/A
software. I have a promise for delivery on Friday.
V5R4 is a great release (even at pre-GA). That makes for 3 outstanding
ones in a row (with V5R4 probably being the best). You know what that
means about the next one:-))))) In truth, I think that they have firmed
up
their quality processes.
Had a lot of trouble getting my brain around virtual tape, and now that
I
have, it's not performing well. I have an open problem, but what you
should be worried about is the old stuff which for the most part is
ginger
peachy keen.
Al
Al Barsa, Jr.
Barsa Consulting Group, LLC
400>390
"i" comes before "p", "x" and "z"
e gads
Our system's had more names than Elizabeth Taylor!
914-251-1234
914-251-9406 fax
http://www.barsaconsulting.com
http://www.taatool.com
http://www.as400connection.com
"Jim Franz"
<franz400@xxxxxxx
r.com>
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how many are at v5r4 in
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05/03/2006 09:45
AM
Please respond to
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<midrange-l@midra
nge.com>
I asked a similar question whether v5r4 ready for production. No
responses.
So I'll ask again in this way. How many are at v5r4 now (and how smooth
is
it)
or have plans to upgrade soon? Have 2 customers who want to do it at end
of
May.
jim franz
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