Re: RAID Controller (HP P400) beat by SW-RAID?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



* Anthony Presley (anthony@xxxxxxxxxxxxxx) wrote:
> I was really hoping that with hardware RAID that something would be faster
> (loading times, queries, etc...).  What am I doing wrong?

ext3 and ext4 do NOT perform identically out of the box..  You might be
running into the write barriers problem here with ext4 forcing the RAID
controllers to push commits all the way to the hard drive before
returning (thus making the BBWC next to useless).

You might try w/ ext3 on the new system instead.

Also, the p800's are definitely better than the p400's, but I don't know
that it's the controller that's really the issue here..

	Thanks,

		Stephen

Attachment: signature.asc
Description: Digital signature


[Postgresql General]     [Postgresql PHP]     [PHP Users]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Yosemite]

  Powered by Linux