I've tested NDMP on 6 differetnt arrays and it has never moved millions of small files well. We maxed out backup performance on our NetApp FAS 2xxx with 2 streams at approx 20MB/sec total. We're hoping to test SMTape, which purportedly does a bit level dump of the entire array. I haven't had a chance to test this yet, but according to NetApp it will get us our weekly full and drive LTO3. We'll then need to put some sort of forever incremental or snapshot backup in-between the SMTape dumps.
-Jonathan -----Original Message----- From: veritas-bu-boun...@mailman.eng.auburn.edu [mailto:veritas-bu-boun...@mailman.eng.auburn.edu] On Behalf Of Nate Sanders Sent: Friday, September 10, 2010 12:22 PM To: veritas-bu@mailman.eng.auburn.edu Subject: [Veritas-bu] NBU 6.5.6 client on FreeBSD 7.2 host Now that we made it to 6.5.6 we're able to start testing NFS performance from our NetApp VS NDMP. For the longest time we've done the backup of some 1 billion small image files off the NetApp via NDMP. This job usually took 1-3 weeks to complete a full sweep via NDMP. Since we have support for FBSD we thought we would try doing NFS via that client as Linux NFS is not as powerful as the BSD/Solaris variety. Well on our initial test of a small volume from the NetApp, we're seeing 2-4MB/s performance. Confirmed via bptm log. This is going straight to LTO4 tape, which usually backs up around 150MB/s. Logs show that the previous NDMP jobs from the NetApp we're doing around 40MB/s direct to two dedicated NDMP LTO4 drives. Supposedly multiplexing for NDMP will come to NBU 7.x shortly and we will test again with that in the future. Right now I am not multiplexing this NFS job but while looking in bptm I don't see the usual "waited for buffer" errors that would tell me that I _should_ increase it. Is it still likely multiplexing would increase the overall performance here? Is this a known issue with FBSD clients? Is there something else I should be looking at? -- Nate Sanders Digital Motorworks System Administrator (512) 692 - 1038 This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu