Re: Virtual tape libraries
2005-05-20 09:44:29
Hi,
Most VTL's that I have encountered emulate a real tape drive (ie. Brand
and model) and thus their cartridge size is based on this (ie. 200 GB
for LTO1, etc). I would find out why this vtl has this limitation.
As to the db growth, others may have a better idea, but I have always
found that adding volumes wasn't nearly as big a deal as adding more
backed up data (ie. If I bring in 20 more servers with 10,000's each,
that overshadows anything else as far as the db is concerned).
Michael Wheelock
Integris Health
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Jon Evans
Sent: Friday, May 20, 2005 5:02 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Virtual tape libraries
I have been experimenting with a virtual tape library connected to TSM
(Windows 2k3 5.1.6.3 server)
All seems to work perfectly and TSM is none the wiser. However, The
maximum cartridge size in this virtual library is 2GB. I am currently
using LTO1 and getting upto 100 times this amount of data on one tape.
My database is 56GB and I currently have approx 600 volumes
My question is.. if I were to move to a virtual library and had to
increase the number of my volumes by up to 10 times
What impact would this have on my database ?
Thanks in advance
Jon Evans
Storage Consultant
KBR
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