[Veritas-bu] data buffers tuning etc on netbackup 5 and LTO drives
2004-12-21 17:13:33
Subject: |
[Veritas-bu] data buffers tuning etc on netbackup 5 and LTO drives |
From: |
dave.markham AT fjserv DOT net (Dave Markham) |
Date: |
Tue, 21 Dec 2004 22:13:33 +0000 |
Paul Keating wrote:
>Per drive? Or per job?
>
>You said you were multiplexing at 10.
>
>10 x 3.8 MB/s is about native speed for the drives.
>
>If you're getting a TOTAL of 3.8MB/s per DRIVE, then I
>agree.....TERRIBLE speed.
>
>I'm currently using
>SIZE_DATA_BUFFERS 64k
>NUMBER_DATA_BUFFERS 12
>NET_BUFFER_SZ 64k
>
>
>Paul
>
>
>
>>-----Original Message-----
>>From: Dave Markham [mailto:dave.markham AT fjserv DOT net]
>>Sent: December 21, 2004 12:09 PM
>>To: Paul Keating
>>Cc: veritas-bu AT mailman.eng.auburn DOT edu
>>Subject: Re: [Veritas-bu] data buffers tuning etc on
>>netbackup 5 and LTO drives
>>
>>
>>
>>I was meaning about 3.8 MB/s which was very slow in my opinion :(
>>
>>
>>
>
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>Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
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>
>
>
The Eg i gave was a bit poor becuase the job running at 3.8mbs wasnt
running during a multiplexed backup.
I've added the performance options now on media servers and master
server and have seen writes in the bptm log of 60-60MBs which is mad fast.
Normally its doing around 30-40 which is great.
Thanks
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