RE: Abysmal write performance on HW RAID5

2007-12-02 Thread Daniel Korstad
-Original Message- From: ChristopherD [mailto:[EMAIL PROTECTED] Sent: Sunday, December 02, 2007 4:03 AM To: linux-raid@vger.kernel.org Subject: Abysmal write performance on HW RAID5 In the process of upgrading my RAID5 array, I've run into a brick wall ( 4MB/sec avg write

Re: Abysmal write performance on HW RAID5

2007-11-29 Thread Bill Davidsen
ChristopherD wrote: In the process of upgrading my RAID5 array, I've run into a brick wall ( 4MB/sec avg write perf!) that I could use some help figuring out. I'll start with the quick backstory and setup. Common Setup: Dell Dimension XPS T800, salvaged from Mom. (i440BX chipset, Pentium3 @

Re: Abysmal write performance on HW RAID5

2007-11-27 Thread Mikael Abrahamsson
On Tue, 27 Nov 2007, ChristopherD wrote: At this point, I'm all ears...I don't even know where to start. Is ext2 not a good format for volumes of this size? Then how to explain the block device xfer rate being so bad, too? Is it that I have one drive in the array that's a different brand?