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cat /proc/mdstat

Personalities : [raid1] [raid0] [raid6] [raid5] [raid4] [linear] [raid10] 
md11 : active raid10 sde1[3] sdj1[4](F)
      286743936 blocks 64K chunks 2 near-copies [4/1] [___U] [1:1:3:0]
      [=>...................]  resync =  8.0% (23210368/286743936) finish=67874.1min speed=64K/sec

umount /dev/md11

umount: /dev/md11: not mounted

mdadm --stop /dev/md11

mdadm: fail to stop array /dev/md11: Device or resource busy

mdadm --manage --set-faulty /dev/md7 /dev/sdh1

mdadm: set /dev/sdh1 faulty in /dev/md7

mdadm -r /dev/md7 /dev/sdh1

mdadm: hot remove failed for /dev/sdh1: Device or resource busy

cat /proc/mdstat

Personalities : [raid1] [raid0] [raid6] [raid5] [raid4] [linear] [raid10] 
md11 : active raid10 sde1[3] sdj1[4](F)
      286743936 blocks 64K chunks 2 near-copies [4/1] [___U] [1:1:3:0]
      [=>...................]  resync =  8.0% (23210368/286743936) finish=67874.1min speed=64K/sec
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1 Answer

I'm no expert in this, but isnt the RAID rebuilding?

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i know is not rebuilding , how to slove this –  santhosha Feb 21 '11 at 5:32
    
No, it is rebuilding. "resync = 8.0%" –  pauska Feb 21 '11 at 8:09
    
is not modified this is stop , i am absorve from 3 days it shows same "resync =8.0%" –  santhosha Feb 21 '11 at 10:36
    
can u try this create raid 10 with 4 raid devices, after that mount to one directory, in directory add one file and some texts and save it. after that remove two raid devices one by one. after that edit the contents of file of already mounted. and try remove for other raid devices. ( i follow this way i got problem ) –  santhosha Feb 22 '11 at 10:15
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