Anton,

You can do both, we have a mixture in our complex.

We prefer our customers use NDMP, since it has been
faster.  Depending on your data retention policies in your backup
storage pools, and frequency between full and incremental backups on
NDMP, our NDMP clients accumulate a *lot* more data.

We have had some trouble building TOCs from filers with old Macintosh
data, and some non-POSIX standard file or pathnames (it is curious to
me that one of our customers had previously been backing up his
filers with Legato, using NDMP, and can build TOCs just fine from the
same data).

When restoring file level data (via the Web GUI), loading TOCs can be
time-consuming.

Last, yes you need to connect your appliance directly to your tape library.

John

At 12:51 AM 11/4/2005, you wrote:

Hello all together.


We will become a NAS Device from I think NetApp and I was asked to find out
how this could be managed in concerne of Backup and restore.

So I looked for the best backup strategy but didn't find much on it.

So here are my questions:

1.) Which ways exist to backup a NAS Device with TSM? Only the NDMP-way or
could I manage this in the known and old way? I mean having one or more
TSM-Clients which back up the data to the TSM-Server without NDMP?

2.) When we would go the NDMP-way, must the NAS Device have a direct
connection to a Tape Device or could it use a Tape device which is only
connected to the TSM-Server?

With kind regards and the hope to get answers soon


Anton

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