Re: [PATCH] (test11-ac4) unbelievably silly (fatal) typo in raid5.c

On Mon, Nov 27, 2000 at 02:41:53PM +1100, Neil Brown wrote: raid5 rebuild has been fatally flawed ever since it got into 2.4, Please apply the following patch. Thanks, NeilBrown --- ./drivers/md/raid5.c 2000/11/27 02:46:45 1.1 +++ ./drivers/md/raid5.c 2000/11/27 02:47:37

Re: Lenght of IDE cables?

ritz wrote: I've been having custom 24" cables made for use in my rackmount boxes that use the 3WARE IDE RAID controllers. 18" is always a bit on the short side. Now if I can only find someone who will make them AND round them out for me, I'd be in really great shape. How are you

Re: Lenght of IDE cables?

24" cables CTG (Cables To Go) 24in int Ultra DMA/ATA ribbon 3 connector IDE 33/66 UDMA $11 http://www.us.buy.com/retail/product.asp?sku=10030510loc=101 -- Gary J. Murakami, Ph.D. email: [EMAIL PROTECTED] web: http://www.research.att.com/~gjm/ fax: 1-973-360-8455 - To unsubscribe from this list:

Re: Lenght of IDE cables?

From [EMAIL PROTECTED] Mon Nov 27 10:36:36 2000 ritz wrote: I've been having custom 24" cables made for use in my rackmount boxes that use the 3WARE IDE RAID controllers. 18" is always a bit on the short side. Now if I can only find someone who will make them AND round them out

Re: we are finding that parity writes are half of all writes when writing 50mb files

On Mon, Nov 27, 2000 at 02:24:03PM -0700, Hans Reiser wrote: using reiserfs over raid5 with 5 disks. This is unnecessarily suboptimal, it should be that parity writes are 20% of the disk bandwidth. Comments? It would be great to have a number describing ``unnecessarily suboptimal'' more

Re: we are finding that parity writes are half of all writes when writing 50mb files

Jakob Østergaard ([EMAIL PROTECTED]) wrote on 27 November 2000 18:18: On Mon, Nov 27, 2000 at 02:24:03PM -0700, Hans Reiser wrote: using reiserfs over raid5 with 5 disks. This is unnecessarily suboptimal, it should be that parity writes are 20% of the disk bandwidth. Comments? It would

Re: we are finding that parity writes are half of all writes when writing 50mb files

On Mon, Nov 27, 2000 at 04:58:12PM -0200, Carlos Carvalho wrote: Jakob Østergaard ([EMAIL PROTECTED]) wrote on 27 November 2000 18:18: On Mon, Nov 27, 2000 at 02:24:03PM -0700, Hans Reiser wrote: using reiserfs over raid5 with 5 disks. This is unnecessarily suboptimal, it should be that

Re: we are finding that parity writes are half of all writes when writing 50mb files

Hans Reiser [EMAIL PROTECTED] writes: using reiserfs over raid5 with 5 disks. This is unnecessarily suboptimal, it should be that parity writes are 20% of the disk bandwidth. Comments? Is there a known reason why reiserfs over raid5 is way worse than ext2. Does ext2 optimize for

Re: [BUG] reconstruction doesn't start

On Mon, 27 Nov 2000, Mike Black wrote: I think the lack of the message "dirty sb detected, updating." is what's killing you. Try zeroing out the disk before you add it (cat /dev/zero /hdc1). If you don't mount the disks and make a change than there's nothing to resync...the superblocks

Any experience with LSI SYM 53c1010 scsi controller??

Hi, I am considering using an ASUS CUR-DLS mother board in a new NFS/RAID server, and wonder if anyone was any experience to report either with it, or with the Ultra-160 dual buss scsi controller that it has - the LSI SYM 53c1010. From what I can find in the kernel source, and from lsi

Re: [BUG] reconstruction doesn't start

On Monday November 27, [EMAIL PROTECTED] wrote: When md2 is finished then md1 is resynced. Shouldn't they do resync at the same time? I never saw "md: serializing resync,..." what I supected to get because md0 and md1 share the same physical disks. My findigs: The md driver in