ADSM-L

Re: [ADSM-L] SV: the purpose of "file" device class

2009-09-22 10:55:48
Subject: Re: [ADSM-L] SV: the purpose of "file" device class
From: Richard Rhodes <rrhodes AT FIRSTENERGYCORP DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Tue, 22 Sep 2009 10:54:52 -0400
> The only reason why I should sale a customer a VTL is if they wanna run a
LANFree backup to disk.

It seems that the value-add of a VTL over FILE devices on
plain DISK is Lanfree, compression and de-dup. Given the much greater
cost of a VTL over plain disk, we keep looking for how to achieve
these value-add features with plain disk.  TSM v6.1 seems to have
provided the de-dup part - now for lanfree and compression.

Question:  Does TSM support multi-reader function of FILE devices
with a VTL?  In other words, can you get the same "tape" vol mounted
multiple times - ONCE for WRITING and multiple for READONLY? Or, just
multiple READONLY mounts? This would be great at our DR site for
DR restores.


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