Re: [Veritas-bu] Using multiple drives with NDMP.
2009-06-28 23:48:52
Hello Jeff,
I just have SIZE_DATA_BUFFERS on the netbackup media servers and the buffer size on our EMC Celerras set to 256k. I don't have SIZE_DATA_BUFFERS_NDMP set at all, and I can see quite good performance on my LTO3 tape drives, as I pointed out 75mg/s on the UNIX and 65mg/s on Windows.
Boris
On Jun 25, 2009 11:16am, Jeff Cleverley <jeff.cleverley AT avagotech DOT com> wrote: > > > > > Boris, > > > > Just to clarify. When you set the data buffers settings for the filer, > were you changing the SIZE_DATA_BUFFERS_NDMP or was it something else? > I was unclear whether the ndmp buffer size was actually passing that > size for the dump command to use for a block size. > > > > Thanks, > > > > Jeff > > > > Boris Kraizman wrote: > Jeff, good point. You need to tune the data buffer size as > well. I changed the data buffer settings on the filer and the backup > media servers to 256k, runs really fast in my case. I noted the Solaris > media server runs backups faster then the Windows media servers. > > > > Boris > > > > On Fri, Jun 12, 2009 at 12:26 PM, Jeff > Cleverley jeff.cleverley AT avagotech DOT com> > wrote: > > > The clients max job was set > to 1. I changed it to 10 for now. The > policy with 3 file systems in the includes grabbed 3 drives and started > writing. Performance now needs to start getting tuned to see what we > can get but at least I can use all the drives. > > > > Thanks, > > > > Jeff > > > > > > Jon Bousselot wrote: > What do > you have set for "maximum jobs per client" under the global attributes > of the properties tab of the master server? > > > > by the CLI... > > > > Check it > > /usr/openv/netbackup/bin/admincmd/bpconfig -L > > > > Set it > > /usr/openv/netbackup/bin/admincmd/bpconfig -mj 4 > > > > NDMP will multi-stream, but not multiplex. > > > > -Jon > > Greetings, > > > > I've got just about all the bugs worked out of the new test environment > except 1. I can get my NDMP policies to back up more than one file > system at a time. > > > > I've got a 6.5.3 environment running on linux. I've got a library > (tld0) with 4 Gen 3 Ultrium drives. I've defined a media manager > storage unit because I'm doing remote NDMP. I've set up 3 test > policies, 1 standard and 2 NDMP. All policies work fine one at a time, > or either NDMP policy will run at the same time as the standard > policy. The storage unit is set to allow the use of 4 drives and also > allow multiplexing (for the standard policy). The policies vary on the > number of jobs per policy. One is set to 9 and the other is not set. > One NDMP policy has 3 file systems to back up and the other has 1. > > > > When I run the policy with 3 file systems, it only runs one at a time > to one tape. The other 2 just queue. I've tried putting in the new > stream directive between them in the includes file but it didn't help. > I can get them all to work one at a time but can't get them to backup > more than one NDMP file system at a time. Is there some bp.conf > directive I need to create? > > Any help pointing down the correct path would be appreciated. > > > > Thanks, > > > > Jeff > > -- > > > > Jeff Cleverley > > Unix Systems Administrator > > 4380 Ziegler Road > > Fort Collins, Colorado 80525 > > 970-288-4611 > > jeff.cleverley AT avagotech DOT com > > > > ------------------------------------------------------------------------ > > > > > _______________________________________________ > > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu > > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > > > > > > > -- > > Jeff Cleverley > Unix Systems Administrator > 4380 Ziegler Road > Fort Collins, Colorado 80525 > 970-288-4611 > jeff.cleverley AT avagotech DOT com > > > > > > > > > > _______________________________________________ > > Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu > > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > > > > > > > > > !DSPAM:4a40f2c182048758971050! > > > > -- > > Jeff Cleverley > Unix Systems Administrator > 4380 Ziegler Road > Fort Collins, Colorado 80525 > 970-288-4611 > jeff.cleverley AT avagotech DOT com > > >_______________________________________________
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