[PATCH md 002 of 2] Clear the 'recovery' flags when starting an md array.

It possibly for this to still have flags in it and a previous instance has been stopped, and that confused the new array using the same mddev. Signed-off-by: Neil Brown [EMAIL PROTECTED] ### Diffstat output ./drivers/md/md.c |1 + 1 files changed, 1 insertion(+) diff

Re: RAID 5 write performance advice

seems i need to change the mail thread to why my RAID0 write speed so slow! :P i also use a Marvell 8 port PCI-X card. 8 SATA DISK RAID0, each single disk can give me around 55MB/s, but the RAID0 can only give me 203MB/s. I tried different io scheduler, all lead to same write speed at my side.

Re: RAID 5 write performance advice

Hello, Here are the results using 5 disks for RAID 5 – basically the same results but with lower values. Again, much slower than it could be. *** dd TEST *** time dd if=/dev/zero of=/dev/md0 bs=1M 2819620864 bytes transferred in 23,410720 seconds (120441442 bytes/sec) iostat 5 output:

Re: RAID 5 write performance advice

i think this is out of my mind now. i think 4+1 DISK with 64KB chunk size is 256KB which fit the 1M size well. So there should not have any read happen... ming On Fri, 2005-08-26 at 17:29 +0200, Mirko Benz wrote: Hello, Here are the results using 5 disks for RAID 5 – basically the same

Re: number of global spares?

On Friday August 26, [EMAIL PROTECTED] wrote: I've been working on a RAID setup with dual RAID controllers and three expansion boxes - 48 disks in all, including data, parity and global spares. If there are 48 drives, why do your drive-numbers go up to 59? Confusing but not important.

RE: number of global spares?

-Original Message- From: [EMAIL PROTECTED] [mailto:linux-raid- [EMAIL PROTECTED] On Behalf Of Dan Stromberg Sent: Friday, August 26, 2005 3:01 PM To: Linux RAID Cc: [EMAIL PROTECTED] Subject: number of global spares? I've been working on a RAID setup with dual RAID

Re: number of global spares?

Guy [EMAIL PROTECTED] writes: [...] I've been working on a RAID setup with dual RAID controllers and three expansion boxes - 48 disks in all, including data, parity and global spares. [...] They don't feel that the storage has to be blazing fast, and 100% uptime isn't paramount, however

Re: number of global spares?

On Sat, 2005-08-27 at 15:00 +1000, Daniel Pittman wrote: Guy [EMAIL PROTECTED] writes: [...] I've been working on a RAID setup with dual RAID controllers and three expansion boxes - 48 disks in all, including data, parity and global spares. [...] They don't feel that the storage

RE: number of global spares?

On Fri, 2005-08-26 at 19:21 -0400, Guy wrote: -Original Message- From: [EMAIL PROTECTED] [mailto:linux-raid- [EMAIL PROTECTED] On Behalf Of Dan Stromberg Sent: Friday, August 26, 2005 3:01 PM To: Linux RAID Cc: [EMAIL PROTECTED] Subject: number of global spares?