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  3. March 2018

Re: Tape category *SHARE400 *NOSHARE and restore from type 21 Save

Sorry to confuse you. When an LTO is written to, the system information
that is writing the tape is part of the header, so while you used option 21
from the save menu the system information is still there on the tape. BRMS
and Media and Storage Extentions will honor the system name, it when you
get it into a library and you can use the WRKMLBBRM command it's best to
just open the tape up to any system.

Jim Oberholtzer
CEO/Chief Technical Architect
Agile Technology Architects

On Wed, Mar 7, 2018 at 11:40 AM, Jack Woehr <jwoehr@xxxxxxxxxxxxxxxxxxxxxxxx
wrote:

Well, what confused me, Jim, is that a tape was produced in a standalone
drive and GO SAVE seems to have no notion itself of *SHARE400 etc.

I certainly have, in using tape libraries, changed a fresh tape from
*NOSHARE to *SHARE400 routinely, as our tape libraries are themselves
shared.

I just wondered if there was some "magic" NOSHARE bit at Save type 21 time
that spoiled a tape forever from being restored to a different LPAR.

On Wed, Mar 7, 2018 at 11:07 AM, Jim Oberholtzer <
midrangel@xxxxxxxxxxxxxxxxx> wrote:

First off, for simplicity change the category to *SHARE400, Now any
system that is IBM i can use that tape.

*NOSHARE says only the system the tape is assigned to should be able to
use
it.

The fact that you are using WRKMLBBRM implies that you have Media and
Storage Extensions loaded.

That software is what enforces the category use, along with BRMS. You
will have to specify the tape name (do not use *MOUNTED) with the
library,
and I find it good practice to use it with standalone tape devices as
well. If you have a save list with the sequence numbers on it, the
restores will be significantly faster, than using *SEARCH. Consider a
DSPTAP to *PRINT if you don't. Now you can scan the output for object
names and get the sequence number from that. the DSPTAP will take some
real minutes.....

So, *SHARE400, always specify the tape name, and sequence number (if you
have it).

Jim Oberholtzer
CEO/Chief Technical Architect
Agile Technology Architects

On Wed, Mar 7, 2018 at 10:53 AM, Jack Woehr <jwoehr@absolute-performance.
com
wrote:

Does the notion of tape category have any meaning on a type 21 Save if
one
uses a standalone tape drive instead of a tape library? Or if one
created
the type 21 Save on a standalone tape drive and then attempts to
restore
on
another system using a tape library?

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