Is anyone else playing with the MegaRAID series of controllers ?  I just
started testing one out today (My Mylex comes later this week).  I noticed
the BIOS is V 1.38 dated June 10 1996.  Should I upgrade it ?  What have
others tested / used?  

I have been playing for now with RAID 0 to get a sense of various
performance settings, which can dramatically effect bonnie and iozone
results. e.g. Write Back vs write through and stripe size.  The eventual
purpose will be for a SQUID server in a couple of months once the drivers
are back ported.

e.g. same drives, but with Write back and a 128K stripe size vs. the default
              -------Sequential Output-------- ---Sequential Input--
--Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
           40 16341 99.1 20746 38.3 20307 52.7 14187 100.0 94033 98.2
9744.2 99.8

v.s.

Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
              -------Sequential Output-------- ---Sequential Input--
--Random--
              -Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine    MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU  /sec
%CPU
           40 10952 66.9 11622 22.6  9564 30.1 14230 100.0 63604 100.0
6944.5 99.8

------------------------------------------------------------------------
Mike Tancsa,                                      tel 01.519.651.3400
Network Administrator,                            [EMAIL PROTECTED]
Sentex Communications                             www.sentex.net
Cambridge, Ontario Canada


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