Be careful using a third party product (TapeCopy or CA-1/CopyCat) to copy
HSM cartridges to other cartridges or media. The HSM CDS keeps track of
which datasets are on which volumes, so if you copy the contents (files)
from one cartridge (virtual or physical) to another cartridge outside of
HSM's copy function the CDS won't be updated and HSM won't call for those
files from the copied cartridges.

The best way (IMHO) to utilize these new high capacity cartridges is the
backend of a virtual-tape solution (IBM, STK, CA). All of these virtual-tape
solutions (now) have the ability to create at least 2 physical copies of a
virtual-volume on physical cartridges (some even go to 4 physical copies)
which helps with the very valid "all the eggs in one basket" concern. Here
however the problem of getting one of these physical cartridges out of a
robotic environment gets more complicated. It's easy to get a cartridge out
of 3494/ATL, much harder to get a copy of a virtual-volume out of a
3494/VTS. STK its very easy (both physical and virtual-volume), and CA's
Vtape is robot independant so it can be as easy or hard as you like. Of
course there is also the 3494/VTS Duplex environment, where you have a
3494/VTS both onsite and offsite and they mirror each other (no need to move
cartridges at all).

Russell Witt
CA-1 Level-2 Support Manager

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED]
Behalf Of McKown, John
Sent: Tuesday, January 10, 2006 3:39 PM
To: [email protected]
Subject: DFSMShsm & 3592 carts & money


Nice subject?

Anyway does anybody else out there have 3592 drives? Are you using them
for DFSMShsm ML2 data? At present, we are debating putting HSM ML2 data
on 3592 carts. The other option is to use 3490E __virtual__ carts and
use OpenTECH's TapeCopy to stack the virtual carts onto physical 3592
carts. The main "worry" about this, in both cases, is that we won't get
out money's worth due to having too little data on the individual 3592
carts. The number I heard is $200/cart, so we don't want to "waste"
them.

Any help?

--
John McKown
Senior Systems Programmer
UICI Insurance Center
Information Technology

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