I have a raid1 where the resync operation stalls. It is set up to mirror three drives with a fourth as a spare. This set up has been working nicely for several year, until yesterday. I will rotate a drive to off-site storage to protect the data relying on the raid to maintain 3 live disks.
From /proc/mdstat md1 : active raid1 sdc2[6](S) sda2[5] sdb2[4] sdd2[3](F) 32766904 blocks super 1.2 [3/2] [UU_] [======>..............] recovery = 30.2% (9924224/32766904) finish=5241.7min speed=72K/sec This looks normal, but it will NOT advance past that block. It shows two live disks in the array and a resync to bring the 3rd drive current. Unfortunately that 3rd drive will not finish the recovery. This happened yesterday to the original spare when I went to rotate a drive out for off-site storage. The original third drive also stalled when added back to the array. Today I tried to add a new drive, but am hitting the same problem. My best guess is that one or both of the live drives is failing. What should I do next? My plan is to use ddrescue to copy the two live disks to new drives and then try to start the raid array with the new drives. I am hoping that will allow me to resync a third drive. Does this make sense? Is there a better approach? https://raid.wiki.kernel.org/index.php/Linux_Raid This seems to be (by far) the best site for background, but they do not address a stalled recovery in any page that I have found. Thanks for any advice or suggestions. -- Lloyd Kvam Venix DLSLUG/GNHLUG library http://dlslug.org/library.html http://www.librarything.com/catalog/dlslug http://www.librarything.com/catalog/dlslug&sort=stamp http://www.librarything.com/rss/recent/dlslug _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
