Re: Connecting a 3753 (TS3200 tape library) to 2 IBMi systems

[Jack Kingsley <iseriesflorida@xxxxxxxxx>]

I could be wrong on this, not sure though.
If your using BRMS on each seperate system then I would think via the WWPN
setups on each server that you could write to it at the same time.
 wrkmlbsts would show the media library as varied on with the the tape
drives from each seperate system showing operational.


On Tue, Jul 10, 2012 at 7:32 AM, <rob@xxxxxxxxx> wrote:

> Tell you this, we currently have a 3576 with 6 fiber drives in it.  3 are
> dedicated to 1 lpar of Linux running TSM.  The other 3 are shared between
> 4 lpars of i - each with their own fiber card.  All attached to a switch.
> We don't have to vary on/off or anything else.  We just have to ensure
> that only 3 lpars of i try to access the library at once.  BRMS keeps
> track of which lpar used what tape and so on.  You have to have the
> networking feature configured for this.
>
> I was hoping for an LTO5 upgrade but it looks like we will be going to a
> LTO4 upgrade.  Much cheaper and allows us to faze in tape cartridge
> upgrades since LTO4 can both read and write LTO3 tapes.  My boss is
> chasing down the numbers but currently looking at replacing several SCSI
> attached 3573 libraries with your configuration.  Everything will be
> connected through a switch.  Our BP is getting us what we'll need.  One of
> these people has his name on 9 redbooks.
>
>
> Rob Berendt
> --
> IBM Certified System Administrator - IBM i 6.1
> Group Dekko
> Dept 1600
> Mail to:  2505 Dekko Drive
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>
>
>
>
> From:   "Graap, Kenneth" <Kenneth.Graap@xxxxxxxxxxxxx>
> To:     "Midrange Systems Technical Discussion (midrange-l@xxxxxxxxxxxx)"
> <midrange-l@xxxxxxxxxxxx>,
> Date:   07/09/2012 06:14 PM
> Subject:        Connecting a 3753 (TS3200 tape library) to 2 IBMi systems
> Sent by:        midrange-l-bounces@xxxxxxxxxxxx
>
>
>
> I have a TS3200 LTO4 Tape Library (3573). It has dual tape drives in it (a
> 4U configuration)
>
> It looks like each Tape Drive has 2 fibre ports.
>
> Currently one port for each Tape Drive is directly attached to a Power6
> IBMi system using a couple 2844 IOP's and 280D Fibre controller cards
> (Note: No fibre switch is being used)
>
> I want to attach a second IBMi, a Power7 system, to the TS3200 via a
> couple 5735 Fibre Channel Adaptor cards connected through a generic Fibre
> Switch.
>
> My intent is to plug the 2nd fiber ports for each tape drive  into the
> fibre switch along with the 2  5735 interface cards with the hope that the
> Power7 system will be able to access the tape drives that way. I was also
> hoping that I could then toggle the tape drives between the two IBMi
> systems.
>
> Do you think this is possible? I haven't been able to find any
> documentation describing this kind of configuration.
>
> Reply or Forwarded mail from: Kenneth E Graap
>
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