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ADSMers & IBM
participants,
Please excuse any
over-simplifications here, but I've just learned how to spell ADSM & I'm
plowing through the V3.1 Admin Guide as fast as I can.
We've just purchased 2 of the Apr98
announced IBM Magstar MP 3570's (C1A) in a 3575 library. I would like to
use the compression on the tape drive, but I've got a product that does its own
compression (OnDemand -- an API client), and it's better at it than a "gzip
-9". So, I have to set the drives to "compression=false"
"compression=false"
for this one product's archive needs. Outside of this 1 application on
this one AIX client, I also have the task of my enterprise backups (4 Unix
servers for now, including the OnDemand box itself, sure to grow). Now
that I've been forced to turn off compression at the drive, I'm going to have to
compress on the RS6K platform. I really don't like this, because I would
like to utilize my tape drives instead of my CPU's (private network in place --
no bandwidth problems). We will likely consume bytes as reflected in the
following ratio:
70% client backup: 30%
OnDemand archival
Is there a user-exit that allows me
to "chdev" the drives whenever I want to switch to 3570
compression? If not, it's a suggestion. It would be nice to have
full control over our computing assets through ADSM.
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