Very Poor Raid Card Performance

[Derek Ragona]

With FreeBSD you can manage RAID in the OS or in your hardware (assuming 
hardware RAID support.)  If you setup the RAID in the hardware, FreeBSD 
just "sees" the array as a large disk you can then partition.  The 
advantage of doing the RAID in hardware is usually performance, but also 
you can dual-boot.

         -Derek


At 10:25 AM 1/16/2007, Steven Lowry wrote:
>Hello,
>
>I have been very impressed with my FreeBSD 6.2 install, I have nearly
>everything working but there are a few things which I need help with.
>
>The main problem is my HD performance, it is approx 6x slower than in
>windows XP, hopefully there is a solution. I have an LSI Megaraid 8x with
>four drives in a raid 5 configuration, in windows I was getting upto 60MB/s
>transfer rates but in FBSD I am getting upto 9MB/s. I followed the
>instructions in the handbook for tuning disks and I have set dma on.
>Being new to unix, I have no idea what to try or get system information
>too continue troubleshooting.
>If anyone could point me in the right direction or to appropriate
>documentation
>it would be much appreciated.
>
>Steve...
>--
>Folding at home http://folding.stanford.edu/
>
>_______________________________________________
>freebsd-questions at freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>To unsubscribe, send any mail to "freebsd-questions-unsubscribe at freebsd.org"
>
>--
>This message has been scanned for viruses and
>dangerous content by MailScanner, and is
>believed to be clean.
>MailScanner thanks transtec Computers for their support.

-- 
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
MailScanner thanks transtec Computers for their support.