Re: [CentOS] Software RAID resync

2009-05-08 Thread Rajagopal Swaminathan
John R Pierce writes: > > Rajagopal Swaminathan wrote: > > > > avg-cpu: %user %nice %system %iowait %steal %idle > >0.000.002.600.000.00 97.40 > > > and, note its now not only copying the data nearly 100X faster, its 97% > idle. I believe your earlier ios

Re: [CentOS] Software RAID resync

2009-05-08 Thread John R Pierce
Rajagopal Swaminathan wrote: > > I powered down the box and changed the SATA mode in BIOS f4rom Auto to > Serial ATA. That did the trick > > avg-cpu: %user %nice %system %iowait %steal %idle >0.000.002.600.000.00 97.40 > and, note its now not only copying the

Re: [CentOS] Software RAID resync

2009-05-07 Thread Rajagopal Swaminathan
John R Pierce writes: > > Les Mikesell wrote: > > It should only take a couple of hours anyway unless there is a lot of > > other activity on the partition. Something must be wrong with the > > controller or drive. > > > > > > The IOSTAT output earlier showing the drives 100% busy at 1.8M

Re: [CentOS] Software RAID resync

2009-05-07 Thread John R Pierce
Les Mikesell wrote: > It should only take a couple of hours anyway unless there is a lot of > other activity on the partition. Something must be wrong with the > controller or drive. > > The IOSTAT output earlier showing the drives 100% busy at 1.8MB/sec tells me they are running in ISA PIO

Re: [CentOS] Software RAID resync

2009-05-07 Thread Les Mikesell
John R Pierce wrote: > Rajagopal Swaminathan wrote: >> A critical question repeated as I can't have this going on over the weekend >> and >> have to get the system up before next 18 hours >> >> >> >>> Q2. If I bring down the system, will the array reconstruction start from >>> beginning or

Re: [CentOS] Software RAID resync

2009-05-07 Thread John R Pierce
Rajagopal Swaminathan wrote: > A critical question repeated as I can't have this going on over the weekend > and > have to get the system up before next 18 hours > > > >> Q2. If I bring down the system, will the array reconstruction start from >> beginning or from where it left off before r

Re: [CentOS] Software RAID resync

2009-05-07 Thread Rajagopal Swaminathan
A critical question repeated as I can't have this going on over the weekend and have to get the system up before next 18 hours > Q2. If I bring down the system, will the array reconstruction start from > beginning or from where it left off before reboot? Thanks Rajagopal

Re: [CentOS] Software RAID resync

2009-05-07 Thread John R Pierce
Rajagopal Swaminathan wrote: > This list never ceases to amaze me with very very quick and educating > responses > > > John R Pierce writes: > > >> Rajagopal Swaminathan wrote: >> >> depends on your disk controllers.whats `iostat -x 5` say the IO on >> hdb3 and hda3 is doing? (ignore the

Re: [CentOS] Software RAID resync

2009-05-07 Thread Rajagopal Swaminathan
Jeremy Rosengren writes: > Google:  http://www.google.com/search?hl=en&rlz=1B3GGGL_enUS326US326&q=mdadm+resync+speed&btnG=Search-- j > /proc/sys/dev/raid/speed_limit_min /proc/sys/dev/raid/speed_limit_max [r...@localhost ~]# cat /proc/sys/dev/raid/speed_limit_min 1 [r...@localhost ~]# cat

Re: [CentOS] Software RAID resync

2009-05-07 Thread Rajagopal Swaminathan
This list never ceases to amaze me with very very quick and educating responses John R Pierce writes: > > Rajagopal Swaminathan wrote: > > depends on your disk controllers.whats `iostat -x 5` say the IO on > hdb3 and hda3 is doing? (ignore the first sample, its average since avg-cpu:

Re: [CentOS] Software RAID resync

2009-05-07 Thread John R Pierce
Rajagopal Swaminathan wrote: > I have configured 2x 500G sata HDD as Software RAID1 with three partitions > md0,md1 and md2 with md2 as 400+ gigs > > Now it is almost 36 hours the status is > > cat /proc/mdstat > Personalities : [raid1] > md0 : active raid1 hdb1[1] hda1[0] > 104320 blocks [2/

Re: [CentOS] Software RAID resync

2009-05-07 Thread Jeremy Rosengren
On Thu, May 7, 2009 at 11:17 PM, Rajagopal Swaminathan < raju.rajs...@gmail.com> wrote: > I have configured 2x 500G sata HDD as Software RAID1 with three partitions > md0,md1 and md2 with md2 as 400+ gigs > > Now it is almost 36 hours the status is > > cat /proc/mdstat > Personalities : [raid1] >

[CentOS] Software RAID resync

2009-05-07 Thread Rajagopal Swaminathan
I have configured 2x 500G sata HDD as Software RAID1 with three partitions md0,md1 and md2 with md2 as 400+ gigs Now it is almost 36 hours the status is cat /proc/mdstat Personalities : [raid1] md0 : active raid1 hdb1[1] hda1[0] 104320 blocks [2/2] [UU] resync=DELAYED md1 : active