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
>
>
>  
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>
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>
>
>
> --
>
> 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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>
>
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>
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>
> --
>
> Jeff Cleverley
> Unix Systems Administrator
> 4380 Ziegler Road
> Fort Collins, Colorado 80525
> 970-288-4611
> jeff.cleverley AT avagotech DOT com
>
>
>

-- 

Jeff Cleverley
Unix Systems Administrator
4380 Ziegler Road
Fort Collins, Colorado 80525
970-288-4611
jeff.cleverley AT avagotech DOT com