RE: how many are at v5r4 in production? -- MIDRANGE-L

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
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If you are interested in iSeries and application development, follow
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-----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>
To 
             Sent by:                  Midrange Systems Technical

             midrange-l-bounce         Discussion

             s@xxxxxxxxxxxx            <midrange-l@xxxxxxxxxxxx>

 
cc 
 

             05/03/2006 03:17
Subject 
             PM                        Re: how many are at v5r4 in

                                       production?

 

             Please respond to

             Midrange Systems

                 Technical

                Discussion

             <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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Subject
                                       how many are at v5r4 in
production?
             05/03/2006 09:45
             AM


             Please respond to
             Midrange Systems
                 Technical
                Discussion
             <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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