I'm wondering if there are filesystem fragmentation issues when using
devclass=file on an NFS mounted DD volume.  Filesystem fragmentation is an
issue when using devclass=file on most filesystems that I'm aware of.  How
long have you been running this way on the DD?

At 06:22 PM 2/26/2008, Ben Bullock wrote:

In the "best practices" document from DataDomain
http://www.datadomain.com/pdf/GlassHouse-TSM-DataDomain-Whitepaper.pdf
and what other things I read, it sounded like the VTL "mimicry" is not
really needed in a TSM environment unless you are doing lan-free or NDMP
backups.

Paul Zarnowski wrote:

I'm curious why you decided to use devclass=file volumes, instead of
using the DD580 as a VTL.  It does have a VTL personality, doesn't it?

--
Paul Zarnowski                            Ph: 607-255-4757
Manager, Storage Services                 Fx: 607-255-8521
719 Rhodes Hall, Ithaca, NY 14853-3801    Em: psz1 AT cornell DOT edu