Re: mismatch_cnt worries

2007-04-03 Thread Gavin McCullagh
Hi, thanks for the reply. On Tue, 03 Apr 2007, Neil Brown wrote: If you have a swap-partition or a swap-file on the device then you should consider it normal. If not, then it is much less likely but still possible. I see it on two machines' ext3 root filesystems. 2. Should I repair,

Re: 2.6.20.3 AMD64 oops in CFQ code

2007-04-03 Thread linux
[EMAIL PROTECTED] wrote: Anyway, what's annoying is that I can't figure out how to bring the drive back on line without resetting the box. It's in a hot-swap enclosure, but power cycling the drive doesn't seem to help. I thought libata hotplug was working? (SiI3132 card, using the sil24

Re: 2.6.20.3 AMD64 oops in CFQ code

2007-04-03 Thread Tejun Heo
[EMAIL PROTECTED] wrote: [EMAIL PROTECTED] wrote: Anyway, what's annoying is that I can't figure out how to bring the drive back on line without resetting the box. It's in a hot-swap enclosure, but power cycling the drive doesn't seem to help. I thought libata hotplug was working? (SiI3132

Re: raid1 does not seem faster

2007-04-03 Thread Al Boldi
Bill Davidsen wrote: Al Boldi wrote: The problem is that raid1 one doesn't do striped reads, but rather uses read-balancing per proc. Try your test with parallel reads; it should be faster. : : It would be nice if reads larger than some size were considered as candidates for multiple

parity check for read?

2007-04-03 Thread Mirko Benz
Hi, Is parity calculation and validation for read operations supported? Regards, Mirko - To unsubscribe from this list: send the line unsubscribe linux-raid in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html

s2disk and raid

2007-04-03 Thread Tim Dijkstra
Hi, I've got a bugreport [0] from a user trying to use raid and uswsusp. He's using initramfs-tools available in debian. I'll describe the problem and my analysis, maybe you can comment on what you think. A warning: I only have a casual understanding of raid, never looked at any code related to

md126-7

2007-04-03 Thread Just Marc
Hi everyone, I've been using the RAID subsystem quite a bit over the years. This week, for the first time, I created a RAID6 array over loop devices that point to files. To my surprise the device showing in /proc/mdstat for this new array is /dev/md127. This is a fresh system and RAID

Re: [Suspend-devel] s2disk and raid

2007-04-03 Thread Stefan Seyfried
On Tue, Apr 03, 2007 at 05:55:21PM +0200, Tim Dijkstra wrote: Hi, I've got a bugreport [0] from a user trying to use raid and uswsusp. He's using initramfs-tools available in debian. I'll describe the problem and my analysis, maybe you can comment on what you think. A warning: I only have a

Re: [Suspend-devel] s2disk and raid

2007-04-03 Thread Rafael J. Wysocki
On Tuesday, 3 April 2007 18:34, Stefan Seyfried wrote: On Tue, Apr 03, 2007 at 05:55:21PM +0200, Tim Dijkstra wrote: Hi, I've got a bugreport [0] from a user trying to use raid and uswsusp. He's using initramfs-tools available in debian. I'll describe the problem and my analysis, maybe

Re: parity check for read?

2007-04-03 Thread Neil Brown
On Tuesday April 3, [EMAIL PROTECTED] wrote: Hi, Is parity calculation and validation for read operations supported? I guess what you are asking is: With raid5, I would like the drive to handle a read request by reading all the blocks in the stripe and checking the parity. If the

Re: md126-7

2007-04-03 Thread Neil Brown
On Tuesday April 3, [EMAIL PROTECTED] wrote: Hi everyone, I've been using the RAID subsystem quite a bit over the years. This week, for the first time, I created a RAID6 array over loop devices that point to files. To my surprise the device showing in /proc/mdstat for this new array is

Re: s2disk and raid

2007-04-03 Thread Neil Brown
On Tuesday April 3, [EMAIL PROTECTED] wrote: Hi, I've got a bugreport [0] from a user trying to use raid and uswsusp. He's using initramfs-tools available in debian. I'll describe the problem and my analysis, maybe you can comment on what you think. A warning: I only have a casual