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Hi Diego

It absolutely is (or would be) a migration; we are kicking around ideas to
see if we can come up with a scenario where we don't have to acquire a FC
attach tape drive for fairly intermittent use.
I am expecting we probably will end up just buying a drive but was curious
as to whether we could get around that with a bit of imagination.

The remote system with the LTO tape drive is not connected to our system in
any way, so it's a case of transferring via tape or other media to allow an
LPAR to be built/restored.


On Thu, May 3, 2018 at 2:53 PM, Diego Kesselman <diegokesselman@xxxxxxxxx>
wrote:

Hi Evan,

I guess you can't transfer the tape cartridge to the target system
with VTL and SAS Tape to perform the duptap. Your issue smells like a
migration

You cannot duplicate cartridges between different media because of
blocking sizes, unless you use the same software (IBM i) to transform
data
You can perform SAVSYS or GO SAVE 21 to an IMAGE CATALOG TAPE and
DUPTAP to another media. It works, but... there's no compression.
You can use SAVF on one side , transfer with SFTP + Compression and
SAVSAVFDTA on the other side, so SAVSYS+SAVSAVFDTA -> kind of SAVE 21
in peaces. Yes, you'll need disk

If this is not a migration and this will occur on a regular basis
maybe you need to rethink the solution, maybe with something like a
second SAS tape.

2018-05-02 21:20 GMT-05:00 Evan Harris <auctionitis@xxxxxxxxx>:
Hi Paul

We have considered that scenario, but disk space is a problem and there
are
question marks about doing a system save to virtual tape.

Converting the Virtual tape into usable tape would require a bit of
thought
but I might think about that some more.

On Thu, May 3, 2018 at 2:06 PM, Steinmetz, Paul <PSteinmetz@xxxxxxxxxx>
wrote:

One option might be to create a virtual tape drive/device and then dup
to
the virtual device.
Then move the result to the other system.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Evan Harris
Sent: Wednesday, May 02, 2018 10:01 PM
To: Midrange Systems Technical Discussion
Subject: Re: Tape Duplication Question

Hi Diego

1. We can IPL from the VTL OK; we have done that on numerous occasions

2. To clarify:
Box 1: IBM i with SAS attached drive; this is the FROM box
Box 2: Power S822 with VIOS, SAS LTO drive and FC VTL, hosting a
number
of i LPARs; this is the TO box

I guess the question is whether there is a tool that will copy the tape
"bye for byte" without trying to format it

On Thu, May 3, 2018 at 1:40 PM, Diego Kesselman <
diegokesselman@xxxxxxxxx>
wrote:

Evan,

1st) check whether IPLing from VTL is possible or not. Sometimes you
can't because of firmware restrictions

2nd) I think you have the SAS LTO and VTL on BOX1 with AIX and only
VTL
on
BOX2 with IBM i. Have you tried to create a tiny LPAR on BOX1 (even
with
temporary license) and access both devices at the same time?

I don't think you can duplicate different tape formats using any tool
different to IBM i OS and DUPTAP. Maybe with same tape drives you can
get
any kind of trick to physically/binary duplicate, but this is not even
near
that case. And you want to IPL from VTL...


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Regards
Evan Harris
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--

Saludos

Diego E. KESSELMAN
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