Re: Virtual tape - object size

[Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>]

Thanks.

On Tue, Apr 17, 2012 at 11:31 AM, <rob@xxxxxxxxx> wrote:

> http://archive.midrange.com/midrange-l/201202/msg00162.html
>
>
> Rob Berendt
> --
> Group Dekko
> Dept 1600
> Mail to:  2505 Dekko Drive
>          Garrett, IN 46738
> Ship to:  Dock 108
>          6928N 400E
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> http://www.dekko.com
>
>
>
>
>
> From:   Jeff Crosby <jlcrosby@xxxxxxxxxxxxxxxx>
> To:     Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
> Date:   04/17/2012 11:06 AM
> Subject:        Virtual tape - object size
> Sent by:        midrange-l-bounces@xxxxxxxxxxxx
>
>
>
> All,
>
> I've done a little experimenting recently with virtual tape.  I
> successfully did a DUPTAP from a physical tape drive to virtual and
> vice versa.
>
> The object size is 71gb on the virtual tape (VRT001) afterward.  I did
> INZTAP on it.  Still 71gb.  So I did INZTAP clearing it.  Still 71gb.
>
> So evidently, when it reaches a size, it stays that size.  Is there a
> way to reduce it?  Disk space isn't a problem, but nightly backup
> takes an extra 20 minutes and that's the only difference I know of.
>
> I did a CHGATR ATR(*ALWSAV) VALUE(*NO) on it for now.
>
> Thanks.
>
>
> (BTW:  I have 2 physical LTO2 tape drives.  A Phys to Phys DUPTAP took
> 37 mins, Phys to Virt took 38 mins, Virt to Phys took 28 mins.  All
> with no system degradation.)
>
>
>
> --
> Jeff Crosby
> VP Information Systems
> UniPro FoodService/Dilgard
> P.O. Box 13369
> Ft. Wayne, IN 46868-3369
> 260-422-7531
> www.dilgardfoods.com
>
> The opinions expressed are my own and not necessarily the opinion of
> my company.  Unless I say so.
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