RE: VTLs and backup time

[Gad Miron <gadmiron@xxxxxxxxx>]

Thanks Rob

We don't have BRMS as we manage to backup the entire machine to a one LTO7
cassette

Gad



> date: Thu, 18 Aug 2022 16:55:54 +0000
> from: Rob Berendt <rob@xxxxxxxxx>
> subject: RE: VTLs and backup time
>
> I have a single VTL connected to a Power 8 and a Power 9 in one location.
> Each Power system has at least 5 lpars of IBM i.  They are connected with
> fiber channel through a switch.  I can run multiple backups at the same
> time and often do.
>
> I haven't had a physical tape drive since LTO4 so I can't speak as to your
> LTO7 performance.
>
> BRMS supports this fine.  If you're going to do this and you're running
> BRMS look at DUPMEDBRM instead of just DUPMED.
>
> Rob Berendt
> --
> IBM Certified System Administrator - IBM i 6.1
> Group Dekko
> Dept 1600
> Mail to:  7310 Innovation Blvd, Suite 104
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>
> -----Original Message-----
> From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Gad
> Miron
> Sent: Thursday, August 18, 2022 12:40 PM
> To: midrange-l@xxxxxxxxxxxxxxxxxx
> Subject: VTLs and backup time
>
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>
> Hello sages
>
> As our nightly Prod machine backup time has grown to 7 hours
> ( SAVLIB *ALLUSER to one stand-alone LTO7 3580 tape )
> We look into VTL to speed things up.
> But, we must backup to tape also (air gap and such)
> So, I think of this scenario:
> a. get a VTL and connect it to both the Prod machine and the Dev machine
> b. run the same nightly Prod machine backup to a VTL
> c. during the day after , use DUPTAP on the Dev machine
>    to duplicate the Prod backup to tape .(the Dev machine has a 3580 Tape
> also)
>
> Now:
> Is a back up to a VTL much faster then tape?
> Can a VTL be directly connected to 2 machines so that a DUPTAP can be done?
>
>
> TIA
> Gad
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