Re: [Veritas-bu] NDMP backups

Don't believe checkpoints/resume works with NDMP.

Also, can anyone verify if multi data streams is supposed to work on NBU 7.0.1? 
I've got 8 streams running from one job and at first one of them was writing 
data and had throughput, now none of them are. They all say "writing", but none 
of throughput showing or anything else.

Yet my Data Domain shows 100+MB/s coming in over two interfaces.. I have no 
idea what's actually going on with the jobs. 

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu 
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of 
Lightner, Jeff
Sent: Wednesday, November 02, 2011 10:14 AM
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] NDMP backups

Haven't done it with NDMP but for other multi-stream backups if you set 
checkpoints then you can resume any stream that fails and it will still be seen 
as part of the original backup.   Another beauty of resume is it backs up from 
the point of last checkpoint before failure rather than restarting the entire 
stream.





-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu 
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Rusty 
Major
Sent: Wednesday, November 02, 2011 10:55 AM
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] NDMP backups

This is a nice solution if you can get the speed out of it. I prefer doing
backups this way as large NDMP streams fail and cause havoc when you have
to restart it.

You can then setup a 'catch all'  policy that backs up All Local Drives,
or all the mount points, but has exclusions for everything you've
specified in the other policies. This way when someone adds something and
doesn't inform you, it's still protected.

-Rusty

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of oersted
Sent: Tuesday, November 01, 2011 11:45 PM
To: VERITAS-BU AT MAILMAN.ENG.AUBURN DOT EDU
Subject: [Veritas-bu] NDMP backups

forget NDMP with Isilon.....there is much better method, which I have only
done with NFS.

Take your media server and hard mount UNC to each individual node.

take the number of subdirectories in the root and divide by the number of
nodes

yes it might not be an even number, but you'll have slight imbalance..1

yes...you could script to check for subs in root and chop it up evenly and
update backup selections

Or, if you have tight controls where you work...anytime storage admin
creates a new subdirectory in root, you are notified to rebalance backup
selections.

then set backup selections as follows

For example: you have four nodes and 16 subs

NEW_STREAM

//unc-path-node1/ifs/directories 1-4

NEW_STREAM
//unc-path-node2/ifs/directories 5-8

NEW_STREAM
//unc-path-node3/ifs/directories 9-12

NEW_STREAM
//unc-path-node4/ifs/directories 13-16


what this winds up doing is making the Isilon use its backplane
(Infiniband) between nodes because that's what its meant for...the
collective throughput of many connections to many nodes being hit all at
once.

10GbE on media server really rips!!

I've seen 500+ MB per seond

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