[Veritas-bu] SIZE_DATA_BUFFERS number for HP LTO3 drives [C1]
2007-03-23 12:06:37
Subject: |
[Veritas-bu] SIZE_DATA_BUFFERS number for HP LTO3 drives [C1] |
From: |
bobbyrjw at comcast.net (bobbyrjw AT comcast DOT net) |
Date: |
Fri, 23 Mar 2007 16:06:37 +0000 |
I am using 524288 in Solaris 9, NB5.1mp4 environment. I have mixed LTO-3 and
LTO-2 drives on same hosts and in the same library.
Have gotten over 120MB/sec sustained for 25 minutes in production on the
LTO-3's (had to multiplex across hosts and NC's, with a destage from DSSU to
get that high). Normally sustain 40-45MB/sec on the LTO-2's with the same
settings.
Bobby.
-------------- Original message --------------
From: misha.pavlov at sgcib.com
> http://seer.support.veritas.com/docs/183702.htm
>
> Sugest "NOTE: For Digital Linear Tape (DLT) drives, the number that seems
> to give the best performance for SIZE_DATA_BUFFERS is 65536 "
>
> I wonder if anyone has SIZE_DATA_BUFFERS number for HP LTO3 drives ?
>
>
> --
> Misha Pavlov
> This message uses only 100% recycled electrons.
>
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