Re: raid6 check/repair

Neil Brown wrote: On Thursday November 22, [EMAIL PROTECTED] wrote: Dear Neil, thank you very much for your detailed answer. Neil Brown wrote: While it is possible to use the RAID6 P+Q information to deduce which data block is wrong if it is known that either 0 or 1 datablocks is

Re: Abysmal write performance on HW RAID5

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: raid6 check/repair

Neil Brown wrote: On Thursday November 22, [EMAIL PROTECTED] wrote: Dear Neil, thank you very much for your detailed answer. Neil Brown wrote: While it is possible to use the RAID6 P+Q information to deduce which data block is wrong if it is known that either 0 or 1 datablocks is wrong, it

assemble vs create an array.......

Hello, I had created a raid 5 array on 3 232GB SATA drives. I had created one partition (for /home) formatted with either xfs or reiserfs (I do not recall). Last week I reinstalled my box from scratch with Ubuntu 7.10, with mdadm v. 2.6.2-1ubuntu2. Then I made a rookie mistake: I --create

Re: assemble vs create an array.......

On Thursday November 29, [EMAIL PROTECTED] wrote: Hello, I had created a raid 5 array on 3 232GB SATA drives. I had created one partition (for /home) formatted with either xfs or reiserfs (I do not recall). Last week I reinstalled my box from scratch with Ubuntu 7.10, with mdadm v.