If you are speaking about Centera--meaning CAS--and not Celerra, then I =
would suggest you read up on the Centera Backup/Recovery Module. CAS =
data is a different type of backup, and while it uses the NDMP engine, =
that isn't the crux of the situation, the CAS nature of the data is the =
main issue IMHO. Simply put, CAS data is not a normal file system, and =
the backup strategy should be different to accomodate that fact.
As for a single stream of NDMP data backing up at 40MB/second...I =
wouldn't expect that. If you are talking about a standard NAS (Celerra, =
NetApp, etc), there are often ways to get that performance. But I don't =
think that is the issue here.
Dave
Date: Mon, 7 Mar 2005 10:18:01 -0600
From: Rob Haig <rhaig < at > RENEWDATA.COM>
Subject: NDMP speeds (with a centera if anyone has one)
We're looking at buying some Centera frames from EMC. Our volume needs
make replication cost prohibitive, (both in hardware and offsite hosting
space) so we're looking at an offsite library that could do (almost
constant) NDMP backups of the data we'll be loading into the Centera.
The sales guy we're working is pushing replication (hmmm....) and
doesn't think that an NDMP client can push enough data for us (we'd need
to sustain about 40MB/s to keep up with our forecast needs). =3D20
=3D20
Does anyone have experience with how much data an NDMP client can push??
And has anyone done so with a Centera?
=3D20
Thx
--=3D20
Rob
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