Hi,
We have several netapp filers in our environment. Because NDMP in
general (and specifically in the case of TSM) is lacking we use a
slightly different configuration. For each filer, we have an anti-virus
server that runs the off box mcafee solution for netapp. These also
double as the backup nodes for the filers. We share each vol (vol1,
vol2, c$, etc) and backup those with the domain tag in the dsm.opt file.
Pro's
1) Doesn't require ndmp.
2) Retains progressive incremental approach.
3) Doesn't require an image backup.
4) Can scale to whatever volume is needed by adding more nodes.
5) No tape drive issues.
Con's
1) More network traffic
2) Probably slower.
3) Windows/UNIX account must have rights to read all files.
4) Need to exclude ~snapshot folders (not a big deal, unless you
forget).
5) Scheduler service must run as the windows account with the rights.
In a disaster, the filer brain is in the c$ share (the files that have
all of the qtree's and shares are in there) so you could restore the c$
share and recreate the volumes. Of course the best disaster option for
the filers is to have a second one in a remote facility and use
snapmirror to mirror them, but that may be cost prohibitive.
I have been told (mostly by netapp people) that veritas and legato have
better implementations of ndmp than TSM. YMMV.
Michael Wheelock
Integris Health
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Remco Post
Sent: Wednesday, June 30, 2004 3:57 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: NDMP backups via LAN?
Hi,
I have a potential customer who would like to backup his NetApp filer to
TSM. Now I just learned that NDMP allows for backups of the NetApp via
the LAN to a backup server with 'local attached' tapedrives.
Unfortunately, it seems this is not supported with TSM. Does anybody
know if this is in the works? In our case it is impossible to connect
the NetApp to the tapedrives, which seems to be the only supported
configuration in TSM according to:
http://www.netapp.com/tech_library/3066.html#4.6.
As you can see, TSM lacks a few options, and the only available option
is a non-option in our case. Anybody have any hints?
--
Met vriendelijke groeten,
Remco Post
SARA - Reken- en Netwerkdiensten http://www.sara.nl
High Performance Computing Tel. +31 20 592 3000 Fax. +31 20 668 3167
"I really didn't foresee the Internet. But then, neither did the
computer industry. Not that that tells us very much of course - the
computer industry didn't even foresee that the century was going to
end." -- Douglas Adams
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