Re: sata controllers status=0x51 { DriveReady SeekComplete Error } error=0x84 { DriveStatusError BadCRC }

2006-04-01 Thread David Greaves
Mitchell Laks wrote: Hi, I have a production server in place at a remote site. I have a single system drive that is an ide drive and two data drives that are on a via SATA controller in a raid1 configuration. I am monitoring the /var/log/messages and I get messages every few days Mar 22

Re: Recommendations for supported 4-port SATA PCI card ?

2006-04-01 Thread Christopher Smith
Brad Campbell wrote: I've been running 3 together in one box for about 18 months, and four in another for a year now... the on board BIOS will only pickup 8 drives, but they work just fine under Linux and recognise all connected drives. What distro and kernel ? I tried this about 2 - 3

Re: Recommendations for supported 4-port SATA PCI card ?

2006-04-01 Thread Brad Campbell
Christopher Smith wrote: Brad Campbell wrote: I've been running 3 together in one box for about 18 months, and four in another for a year now... the on board BIOS will only pickup 8 drives, but they work just fine under Linux and recognise all connected drives. What distro and kernel ?

Re: raid5 high cpu usage during reads - oprofile results

2006-04-01 Thread Alex Izvorski
On Sat, 2006-03-25 at 21:38 -0800, dean gaudet wrote: On Sat, 25 Mar 2006, Alex Izvorski wrote: http://linuxraid.pastebin.com/621363 - oprofile annotated assembly it looks to me like a lot of time is spent in __find_stripe() ... i wonder if the hash is working properly. in raid5.c

Re: raid5 high cpu usage during reads - oprofile results

2006-04-01 Thread dean gaudet
On Sat, 1 Apr 2006, Alex Izvorski wrote: Dean - I think I see what you mean, you're looking at this line in the assembly? 65830 16.8830 : c1f: cmp%rcx,0x28(%rax) yup that's the one... that's probably a fair number of cache (or tlb) misses going on right there. I looked at

Re: sata controllers status=0x51 { DriveReady SeekComplete Error } error=0x84 { DriveStatusError BadCRC }

2006-04-01 Thread Mark Hahn
Mar 29 23:33:26 A1 kernel: ata6: status=0x51 { DriveReady SeekComplete Error } Mar 29 23:33:26 A1 kernel: ata6: error=0x84 { DriveStatusError BadCRC } BadCRC is unambiguous: the packet was corrupted. that could happen several ways, the most common of which is bogus cables (remember, PATA is