ADSM-L

Re: [ADSM-L] Tape library possible replacement - push/pull

2013-02-04 14:23:21
Subject: Re: [ADSM-L] Tape library possible replacement - push/pull
From: "Ehresman,David E." <deehre01 AT LOUISVILLE DOT EDU>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Mon, 4 Feb 2013 19:15:26 +0000
Why?  Because its different than a 3494.  It uses IP to provide a web pages for 
managing the library.  It uses fibre channel to communicate with the host about 
tape mounts/dismounts as well as actual data movement.

David
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
Zoltan Forray
Sent: Monday, February 04, 2013 1:43 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Tape library possible replacement - push/pull

As this project moves forward, I am doing more and more research since I am
unfamiliar with this beast (3494 has been my baby since it was installed in
1995).

The book talks about "*to communicate with a server, the IBM System Storage
TS3500 Tape Library uses a Fibre Channel interface (also called a port).*"

Why?  What is this "fibre channel interface" used for?   The 3494 use IP to
communicate/manage the library and the drives inside the library used fibre
plus an RS422 connection to the library manager.

On Sat, Jan 26, 2013 at 7:50 PM, Prather, Wanda <Wanda.Prather AT icfi DOT 
com>wrote:

> Ah.  2-legged robots will work OK too.
>
> If there isn't a cartridge assignment map, when the operators (who are
> paying attention!) put the cartridges in the I/O door, they use the library
> panel (or the web interface) to tell it  which logical lib to assign that
> batch of cartridges to, then you run a TSM checkin as usual.
>
> The exact sequence varies depending on whether you have "virtual" I/O
> slots enabled with ALMS, but it's documented in the Operator's guide.
> So you should get the same resulting function as with your 3494.
>
> W
>
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Zoltan Forray
> Sent: Saturday, January 26, 2013 5:52 PM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: [ADSM-L] Tape library possible replacement - push/pull
>
> Operators paying attention when loading them ;-)
>
> Using category codes there are 2-library manager servers. Since only one
> LM is used for offsite, 99.9% of tapes bring checked in are handled by it
> with bulk check-in.
>
> -------------
> Zoltan Forray
> TSM Software & Hardware Administrator
> Virginia Commonwealth University
> UCC/Office of Technology Services
> zforray AT vcu DOT edu - 804-828-4807
> Don't be a phishing victim - VCU and other reputable organizations will
> never use email to request that you reply with your password, social
> security number or confidential personal information. For more details
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>  On Jan 26, 2013 5:18 PM, "Prather, Wanda" <Wanda.Prather AT icfi DOT com> 
> wrote:
>
> > >>>Carts get assigned to the logical libraries based on a volser range
> > filter in the library interface.
> >
> > No, that's not an absolute restriction, it's just a convenience.  It
> > allows the case where operators throw scratch tapes into the physical
> > I/O door and the library itself can shift them to the virtual I/O door
> > of the TSM library you want them checked in to, assuming the library
> > is partitioned into multiple logical libraries.
> >
> > How do you get the 3494 library "divided" now so that scratch tapes
> > get the category code of the appropriate library?
> > Or have you implemented 1 library with TSM library sharing, or what?
> >
> > 'Splain, and we'll help you figgur it out....
> >
> >
> > On Fri, Jan 25, 2013 at 10:01 PM, Prather, Wanda
> > <Wanda.Prather AT icfi DOT com
> > >wrote:
> >
> > > Yep, pretty much that simple.
> > >
> > > Check the tapes out of one library, check them into another.
> > > No more complicated than if you are going to a DR site that has a
> > > 3584 rather than a 3494.
> > > TSM doesn't care.
> > >
> > > There are some differences in the library management:
> > >
> > > If you are talking to the 3494 library interface via TCP/IP now,
> > > that changes.  (Some people use the TCP/IP interface, some use a
> > > serial
> > > cable.) TSM talks to the 3584 library via the atape drive over the
> > > fibre, it has its own device number/path.
> > >
> > > Thomas already mentioned that the 3584 can be partitioned into
> > > logical libraries.
> > > If you have multiple TSM servers or other apps using the 3494, you
> > > keep them separated now by 3494 category codes, those go away.
> > > You have the logical libraries now instead.  Carts get assigned to
> > > the logical libraries based on a volser range filter in the library
> > interface.
> > >
> > > W
> > >
> > >
> > > -----Original Message-----
> > > From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On
> > > Behalf Of Zoltan Forray
> > > Sent: Friday, January 25, 2013 2:08 PM
> > > To: ADSM-L AT VM.MARIST DOT EDU
> > > Subject: [ADSM-L] Tape library possible replacement - push/pull
> > >
> > > We are starting to examine the idea of replacing our aging 3494
> > > (installed
> > > 1995) due to difficulty in getting parts and having more frequent
> > > outages due to robot issues.
> > >
> > > Since we have 17-TS1130 drives, the natural transition would be to a
> > > TS3500/3584.
> > >
> > > If we go down this route, one issue might be the
> > > floorspace/placement, which might require a weekend
> eject-push-pull-reload.
> > >
> > > Never having dealt with any tape library other than the 3494, I am
> > > trying to collect as much info as I can on doing a swap-out.
> > >
> > > Is it as simple as defining the new library, moving the drives/paths
> > > to it,  changing the devclass to point to the new library, checkin
> > > everything (scratch/private)??  Am I missing anything?
> > >
> > > --
> > > *Zoltan Forray*
> > > TSM Software & Hardware Administrator Virginia Commonwealth
> > > University UCC/Office of Technology Services zforray AT vcu DOT edu -
> > > 804-828-4807 Don't be a phishing victim - VCU and other reputable
> > > organizations will never use email to request that you reply with
> > > your password, social security number or confidential personal
> > > information. For more details visit
> > > http://infosecurity.vcu.edu/phishing.html
> > >
> >
> >
> >
> > --
> > *Zoltan Forray*
> > TSM Software & Hardware Administrator
> > Virginia Commonwealth University
> > UCC/Office of Technology Services
> > zforray AT vcu DOT edu - 804-828-4807
> > Don't be a phishing victim - VCU and other reputable organizations
> > will never use email to request that you reply with your password,
> > social security number or confidential personal information. For more
> > details visit http://infosecurity.vcu.edu/phishing.html
> >
>



--
*Zoltan Forray*
TSM Software & Hardware Administrator
Virginia Commonwealth University
UCC/Office of Technology Services
zforray AT vcu DOT edu - 804-828-4807
Don't be a phishing victim - VCU and other reputable organizations will
never use email to request that you reply with your password, social
security number or confidential personal information. For more details
visit http://infosecurity.vcu.edu/phishing.html