NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.
Forum Discussion
Ultra 6 - Dead drive, Replaced but won't Rebuild #24999085
I have a ReadyNAS Ultra 6 in Raid 6 which was 98% full. RAIDiator 4.2.25
Powered down system and left off as could not deal with it all due to unrelated pc issues at the same time :(
Finally brought new drive. Being umm "blonde" I turned the unit off to replace the drive. Spend Feb turning everything on and off to see if noticed drive. Nada.
Waited 2 weeks nothing.
Tried again, waited again, nothing.
Researched found out should do as hotswap.
Saw new disk 4 was checked AND PASSED. Yay this time will work.
Nope nada.
Read every forum post on topic, read everything could find on web, tried options all over.
Found "could be" was too full. Moved 1tb off machine.
And still nothing. I check in Volume, Volume as people with this rebuild not happening suggest and nope nothing happens. 3 months now and so over it. Anyone any ideas of what can try?
Wed Jan 7 12:56:48 NZDT 2015 Disk failure detected.
Wed Jan 7 12:57:01 NZDT 2015 ..... If this disk is a part of a RAID 6 volume, your volume is still protected if this is your first failure. A 2nd disk failure will make your volume unprotected. If this disk is a part of a RAID 10 volume,your volume is still protected if more than half of the disks alive. But another failure of disks been marked may render that volume dead. It is recommended that you replace the failed disk as soon as possible to maintain optimal protection of your volume.
Powered down system and left off as could not deal with it all due to unrelated pc issues at the same time :(
Finally brought new drive. Being umm "blonde" I turned the unit off to replace the drive. Spend Feb turning everything on and off to see if noticed drive. Nada.
Sun Mar 8 19:51:59 NZDT 2015 Data volume will be rebuilt with disk 4.
Sun Mar 8 19:50:20 NZDT 2015 System is up.
Waited 2 weeks nothing.
Tried again, waited again, nothing.
Researched found out should do as hotswap.
Sat Apr 4 19:38:11 NZDT 2015 New disk detected. If multiple disks have been added, they will be processed one at a time. Please do not remove any added disk(s) during this time. [Disk 4]
Sat Apr 4 19:37:14 NZDT 2015 A disk was removed from the ReadyNAS. For full protection of your data volume, please add a replacement disk as soon as possible.
Sat Apr 4 19:37:14 NZDT 2015 Disk removal detected. [Disk 4]
Saw new disk 4 was checked AND PASSED. Yay this time will work.
Nope nada.
Read every forum post on topic, read everything could find on web, tried options all over.
Found "could be" was too full. Moved 1tb off machine.
Wed Apr 8 20:45:57 NZST 2015 Data volume will be rebuilt with disk 4.
Wed Apr 8 20:43:46 NZST 2015 New disk detected. If multiple disks have been added, they will be processed one at a time. Please do not remove any added disk(s) during this time. [Disk 4]
Wed Apr 8 20:43:07 NZST 2015 A disk was removed from the ReadyNAS. For full protection of your data volume, please add a replacement disk as soon as possible.
Wed Apr 8 20:43:07 NZST 2015 Disk removal detected. [Disk 4]
And still nothing. I check in Volume, Volume as people with this rebuild not happening suggest and nope nothing happens. 3 months now and so over it. Anyone any ideas of what can try?
12 Replies
Replies have been turned off for this discussion
- Email with details of what my friend Cg did
Bit of a spam below, but these are the steps i took to fix it. MIght help someone on the forums.
Parts with ### are my comments to explain what I did, the rest are console copy/pastes
Enjoy ;-)
cg
### GPT Partition table missing for new disk /dev/sdd;
Disk /dev/sdd: 4294967295 sectors, 2047G
Logical sector size: 512
Disk identifier (GUID): 470beb69-b974-4199-a9e0-0027bdd134a7
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 5860533134
Number  Start (sector)   End (sector)  Size    Code  Name
QuinnyNAS:~#
### Clone the partition table from another OK drive, ie. /dev/sdf;
### sgdisk -R /dev/TARGET /dev/SOURCE;
### sgdisk -G /dev/sdd   to re GUID it
QuinnyNAS:~# sgdisk -R /dev/sdd /dev/sdf
The operation has completed successfully.
QuinnyNAS:~# sgdisk -p /dev/sdd
Disk /dev/sdd: 5860533168 sectors, 2.7 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): 3CCDEB15-2940-4482-9BD1-B84603AA8910
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 5860533134
Partitions will be aligned on 64-sector boundaries
Total free space is 4092 sectors (2.0 MiB)
QuinnyNAS:~# sgdisk -G /dev/sdd
The operation has completed successfully.
QuinnyNAS:~# sgdisk -p /dev/sdd
Disk /dev/sdd: 5860533168 sectors, 2.7 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): E3936097-C73B-400B-A176-4C00C24D0927
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 5860533134
Partitions will be aligned on 64-sector boundaries
Total free space is 4092 sectors (2.0 MiB)
Number  Start (sector)   End (sector)  Size    Code  Name
  1        64     8388671  4.0 GiB   FD00
  2     8388672     9437247  512.0 MiB  FD00
  3     9437248    5860529072  2.7 TiB   FD00
### Confirm clone is matching other drive;
QuinnyNAS:~# sgdisk -p /dev/sdf
Disk /dev/sdf: 5860533168 sectors, 2.7 TiB
Logical sector size: 512 bytes
Disk identifier (GUID): 3CCDEB15-2940-4482-9BD1-B84603AA8910
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 5860533134
Partitions will be aligned on 64-sector boundaries
Total free space is 4092 sectors (2.0 MiB)
Number  Start (sector)   End (sector)  Size    Code  Name
  1        64     8388671  4.0 GiB   FD00
  2     8388672     9437247  512.0 MiB  FD00
  3     9437248    5860529072  2.7 TiB   FD00
### Looks good - verify block devices are present now (sdd1,sdd2 previously missing);
QuinnyNAS:~# ls -l /dev/sdd*
brw-rw---- 1 root disk 8, 48 2015-04-17 20:21 /dev/sdd
brw-rw---- 1 root disk 8, 49 2015-04-17 20:21 /dev/sdd1
brw-rw---- 1 root disk 8, 58 2015-04-15 20:05 /dev/sdd10
brw-rw---- 1 root disk 8, 59 2015-04-15 20:05 /dev/sdd11
brw-rw---- 1 root disk 8, 60 2015-04-15 20:05 /dev/sdd12
brw-rw---- 1 root disk 8, 61 2015-04-15 20:05 /dev/sdd13
brw-rw---- 1 root disk 8, 62 2015-04-15 20:05 /dev/sdd14
brw-rw---- 1 root disk 8, 63 2015-04-15 20:05 /dev/sdd15
brw-rw---- 1 root disk 8, 50 2015-04-17 20:21 /dev/sdd2
brw-rw---- 1 root disk 8, 51 2015-04-15 20:05 /dev/sdd3
brw-rw---- 1 root disk 8, 52 2015-04-15 20:05 /dev/sdd4
brw-rw---- 1 root disk 8, 53 2015-04-15 20:05 /dev/sdd5
brw-rw---- 1 root disk 8, 54 2015-04-15 20:05 /dev/sdd6
brw-rw---- 1 root disk 8, 55 2015-04-15 20:05 /dev/sdd7
brw-rw---- 1 root disk 8, 56 2015-04-15 20:05 /dev/sdd8
brw-rw---- 1 root disk 8, 57 2015-04-15 20:05 /dev/sdd9
### Check mdadm metadevices - /dev/md1 and /dev/md2 were missing a drive;
QuinnyNAS:~# mdadm -D /dev/md1
/dev/md1:
    Version : 1.2
 Creation Time : Wed May 23 08:19:46 2012
   Raid Level : raid6
   Array Size : 2096896 (2048.09 MiB 2147.22 MB)
 Used Dev Size : 524224 (512.02 MiB 536.81 MB)
  Raid Devices : 6
 Total Devices : 5
  Persistence : Superblock is persistent
  Update Time : Fri Apr 17 20:06:54 2015
     State : clean, degraded
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
 Spare Devices : 0
     Layout : left-symmetric
   Chunk Size : 64K
      Name : 001F33EAD668:1
      UUID : 9ead4bd0:3fb129ca:61b328c4:17239b42
     Events : 6607
  Number  Major  Minor  RaidDevice State
    0    8     2     0    active sync  /dev/sda2
    1    8    18     1    active sync  /dev/sdb2
    2    8    34     2    active sync  /dev/sdc2
    3    0     0     3    removed
    4    8    66     4    active sync  /dev/sde2
    5    8    82     5    active sync  /dev/sdf2
### Add in new /dev/sdd2 into /dev/md1;
QuinnyNAS:~# mdadm --manage /dev/md1 --add /dev/sdd2
mdadm: added /dev/sdd2
### Check resync process;
QuinnyNAS:~# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid6 sda3[0] sdf3[5] sde3[4] sdc3[2] sdb3[1]
   11702178816 blocks super 1.2 level 6, 64k chunk, algorithm 2 [6/5] [UUU_UU]
md1 : active raid6 sdd2[6] sda2[0] sdf2[5] sde2[4] sdc2[2] sdb2[1]
   2096896 blocks super 1.2 level 6, 64k chunk, algorithm 2 [6/5] [UUU_UU]
   [====>................]  recovery = 21.0% (110592/524224) finish=0.1min speed=36864K/sec
md0 : active raid1 sda1[0] sdf1[5] sde1[4] sdc1[2] sdb1[1]
   4193268 blocks super 1.2 [5/5] [UUUUU]
unused devices: <none>
### Once mdstat is 100% above, check sync and State = Clean;
QuinnyNAS:~# mdadm -D /dev/md1
/dev/md1:
    Version : 1.2
 Creation Time : Wed May 23 08:19:46 2012
   Raid Level : raid6
   Array Size : 2096896 (2048.09 MiB 2147.22 MB)
 Used Dev Size : 524224 (512.02 MiB 536.81 MB)
  Raid Devices : 6
 Total Devices : 6
  Persistence : Superblock is persistent
  Update Time : Fri Apr 17 20:22:05 2015
     State : clean
 Active Devices : 6
Working Devices : 6
 Failed Devices : 0
 Spare Devices : 0
     Layout : left-symmetric
   Chunk Size : 64K
      Name : 001F33EAD668:1
      UUID : 9ead4bd0:3fb129ca:61b328c4:17239b42
     Events : 6628
  Number  Major  Minor  RaidDevice State
    0    8     2     0    active sync  /dev/sda2
    1    8    18     1    active sync  /dev/sdb2
    2    8    34     2    active sync  /dev/sdc2
    6    8    50     3    active sync  /dev/sdd2
    4    8    66     4    active sync  /dev/sde2
    5    8    82     5    active sync  /dev/sdf2
### Check /dev/md2, missing drive too;
QuinnyNAS:~# mdadm -D /dev/md2
/dev/md2:
    Version : 1.2
 Creation Time : Wed May 23 08:19:46 2012
   Raid Level : raid6
   Array Size : 11702178816 (11160.07 GiB 11983.03 GB)
 Used Dev Size : 2925544704 (2790.02 GiB 2995.76 GB)
  Raid Devices : 6
 Total Devices : 5
  Persistence : Superblock is persistent
  Update Time : Fri Apr 17 20:22:53 2015
     State : clean, degraded
 Active Devices : 5
Working Devices : 5
 Failed Devices : 0
 Spare Devices : 0
     Layout : left-symmetric
   Chunk Size : 64K
      Name : 001F33EAD668:2
      UUID : a51aa3c9:16e9bdd2:d928eae3:5d025c06
     Events : 317712
  Number  Major  Minor  RaidDevice State
    0    8     3     0    active sync  /dev/sda3
    1    8    19     1    active sync  /dev/sdb3
    2    8    35     2    active sync  /dev/sdc3
    3    0     0     3    removed
    4    8    67     4    active sync  /dev/sde3
    5    8    83     5    active sync  /dev/sdf3
### Add /dev/sdd3 to /dev/md2;
QuinnyNAS:~# mdadm --manage /dev/md2 --add /dev/sdd3
mdadm: added /dev/sdd3
### Again, check mdstat;
QuinnyNAS:~# cat /proc/mdstat
Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid6 sdd3[6] sda3[0] sdf3[5] sde3[4] sdc3[2] sdb3[1]
   11702178816 blocks super 1.2 level 6, 64k chunk, algorithm 2 [6/5] [UUU_UU]
   [>....................]  recovery =  0.0% (105728/2925544704) finish=8760.6min speed=5564K/sec
### Yay syncing!;
QuinnyNAS:~# mdadm -D /dev/md2
/dev/md2:
    Version : 1.2
 Creation Time : Wed May 23 08:19:46 2012
   Raid Level : raid6
   Array Size : 11702178816 (11160.07 GiB 11983.03 GB)
 Used Dev Size : 2925544704 (2790.02 GiB 2995.76 GB)
  Raid Devices : 6
 Total Devices : 6
  Persistence : Superblock is persistent
  Update Time : Fri Apr 17 20:31:24 2015
     State : clean, degraded, recovering
 Active Devices : 5
Working Devices : 6
 Failed Devices : 0
 Spare Devices : 1
     Layout : left-symmetric
   Chunk Size : 64K
 Rebuild Status : 0% complete
      Name : 001F33EAD668:2
      UUID : a51aa3c9:16e9bdd2:d928eae3:5d025c06
     Events : 317800
  Number  Major  Minor  RaidDevice State
    0    8     3     0    active sync  /dev/sda3
    1    8    19     1    active sync  /dev/sdb3
    2    8    35     2    active sync  /dev/sdc3
    6    8    51     3    spare rebuilding  /dev/sdd3
    4    8    67     4    active sync  /dev/sde3
    5    8    83     5    active sync  /dev/sdf3
### Wait for resync to finish. You CAN turn the NAS off/on, but ideally you're best to leave it going. - Thanks Quinny, after browsing the forum for hours, I finally found this thread. Your friend's script has proven to be very useful for me, as I had exactly the same problem as you. Is there any way to thank you more?
NETGEAR Academy
Boost your skills with the Netgear Academy - Get trained, certified and stay ahead with the latest Netgear technology!
Join Us!
