disk 2 failure on pro

wow that was alot of text

Relevant text is here:

puds wrote:

Wed Nov 27 07:57:00 WET 2013 Detected increasing pending sector count[837] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy. ... Sun Nov 24 14:12:36 WET 2013 Newly added disk has failed SMART test on channel: 2 (/dev/sdb) Sun Nov 24 13:55:13 WET 2013 Newly added disk has failed SMART test on channel: 1 (/dev/sda) ... Sun Nov 24 12:54:24 WET 2013 Reallocated sector count has increased in the last day. Disk 2: Previous count: 4 Current count: 402 ATA error count has increased in the last day. Disk 2: Previous count: 0 Current count: 6 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.

You have two failing disks, not one.

(1) usually pending sector counts are worse than ATA errors.
(2) If disk 2 is the disk removed from the array, it is possible that resync will fail when because of the pending sector errors on drive 1.

Make a backup of your data without delay - it is very possible that you will lose your data volume when you try to replace your disks.

ok if i have 3 drives containing 3tb what sort of size do i need for the back . what is the compression ratio

Frontview backup (like Windows Drag and Drop) just copies files, there is no compression.

3x3TB has a max of size of 6 TB.

BTW, I missed one line your log for disk 3:

puds wrote:
Sun Nov 3 04:00:45 WET 2013 Reallocated sector count has increased in the last day. Disk 3: Previous count: 6 Current count: 18

This is a bit scary - how old are these drives? What model?

ok going out to buy myself a 3tb drive in morning ..finger crossed backup works..then i guess buy new drives for nas ..this is going to hurt.

Can some one please shine some light over my problem .. I have been aware of pending doom of my drives . first disk 2 ..then on trying to help by removing some of the data on the array this cause disk one to increase its errors. Ok so I removed disk two replaced it with a single two t/b drive this at first wasn’t noticed, so I put back th faulty disks 2 and added the new 2t/b drive into bay 5..ok this has seemed to of worked but disk two now is not even seen and the new disk seems to be a spare. But the odd thing is now I can still access the nas box but now disk 1 is dead ..there was to start with over 2t/b of data on here , and still is just under 2t/bs ..i want to replace disk 1 , but I’m not sure if it is really dead because on the raidar list it is saying lall is ok . but in the log dead…
Description Status
Disk 1 Seagate ST31000340NS 931 GB , 29 C / 84 F Dead
Disk 3 Seagate ST31000340NS 931 GB , 28 C / 82 F , Write-cache ON OK
Disk 5 WDC WD20EZRX-00D8PB0 1863 GB , 22 C / 71 F , Write-cache ON Spare
Fan SYS 865 RPM OK
Fan CPU 1939 RPM OK
Temp SYS 43 C / 109 F [Normal 0-65 C / 32-149 F] OK
Temp CPU 40 C / 104 F [Normal 0-60 C / 32-140 F] OK
UPS 1 Not present NA


Mon Dec 30 13:55:47 WET 2013 Blinking disk lcd 1.
Mon Dec 30 13:03:10 WET 2013 Detected increasing uncorrectable errors[458] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Mon Dec 30 13:03:10 WET 2013 Detected increasing uncorrectable errors[458] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Mon Dec 30 12:45:12 WET 2013 RAID sync started on volume C.
Mon Dec 30 12:43:25 WET 2013 Data volume will be rebuilt with disk 5.
Mon Dec 30 12:41:17 WET 2013 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 5]
Sun Dec 29 21:36:53 WET 2013 System is up.
Sun Dec 29 21:36:46 WET 2013 Volume C is approaching capacity: 96% used 76G available
Sun Dec 29 21:36:36 WET 2013 Volume scan found and corrected errors.
Sun Dec 29 20:31:35 WET 2013 Powering off device
Sun Dec 29 20:31:34 WET 2013 Please close this browser session and use RAIDar to reconnect to the device after it is powered back on. System powering off...
Sun Dec 29 20:29:19 WET 2013 ATA error count has increased in the last day. Disk 1: Previous count: 122 Current count: 396 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
Sun Dec 29 20:29:09 WET 2013 System is up.
Sun Dec 29 20:29:08 WET 2013 The paths for the shares listed below could not be found. Typically, this occurs when the ReadyNAS is unable to access the data volume. media backup
Sun Dec 29 20:28:54 WET 2013 Volume scan failed to run properly.
Sun Dec 29 20:16:31 WET 2013 Powering off device
Sun Dec 29 20:16:31 WET 2013 Please close this browser session and use RAIDar to reconnect to the device after it is powered back on. System powering off...
Sun Dec 29 19:35:28 WET 2013 Detected increasing ATA errors on disk 1[ST31000340NS, 9QJ4C745] 397 times in the past 30 days. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 19:35:13 WET 2013 System is up.
Sun Dec 29 19:35:13 WET 2013 The paths for the shares listed below could not be found. Typically, this occurs when the ReadyNAS is unable to access the data volume. media backup
Sun Dec 29 19:34:26 WET 2013 Volume scan found errors that it could not easily correct. Please ensure that you have current backups of all valuable data before performing a full volume scan by rebooting the NAS through Frontview with the volume scan option enabled.
Sun Dec 29 19:04:53 WET 2013 Rebooting device...
Sun Dec 29 19:04:53 WET 2013 Please close this browser session and use RAIDar to reconnect to the device. System rebooting...
Sun Dec 29 18:56:34 WET 2013 Detected increasing uncorrectable errors[650] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 18:56:34 WET 2013 Detected increasing pending sector count[650] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 18:36:30 WET 2013 Detected increasing uncorrectable errors[834] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 18:36:30 WET 2013 Detected increasing pending sector count[834] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 18:36:27 WET 2013 RAID sync started on volume C.
Sun Dec 29 18:34:32 WET 2013 Data volume will be rebuilt with disk 2.
Sun Dec 29 18:34:19 WET 2013 Detected increasing uncorrectable errors[837] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 18:34:19 WET 2013 Detected increasing pending sector count[837] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 18:32:55 WET 2013 Reallocated sector count has increased in the last day. Disk 1: Previous count: 59 Current count: 61 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
Sun Dec 29 18:32:52 WET 2013 System is up.
Sun Dec 29 14:56:27 WET 2013 Detected increasing uncorrectable errors[838] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:56:27 WET 2013 Detected increasing pending sector count[838] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:52:05 WET 2013 Detected increasing uncorrectable errors[837] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:52:05 WET 2013 Detected increasing pending sector count[837] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:49:54 WET 2013 Detected increasing uncorrectable errors[835] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:49:54 WET 2013 Detected increasing pending sector count[835] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:32:47 WET 2013 Detected increasing uncorrectable errors[834] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:32:47 WET 2013 Detected increasing pending sector count[834] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Sun Dec 29 14:31:22 WET 2013 System is up.
Sun Dec 29 14:31:21 WET 2013 Reallocated sector count has increased in the last day. Disk 1: Previous count: 38 Current count: 59 ATA error count has increased in the last day. Disk 1: Previous count: 116 Current count: 122 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
Sun Dec 29 14:30:59 WET 2013 Volume scan found and corrected errors.
Thu Nov 28 00:32:29 WET 2013 Powering off device
Thu Nov 28 00:32:19 WET 2013 Please close this browser session and use RAIDar to reconnect to the device after it is powered back on. System powering off...
Wed Nov 27 15:35:20 WET 2013 Detected increasing ATA errors on disk 1[ST31000340NS, 9QJ4C745] 123 times in the past 30 days. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Wed Nov 27 07:57:00 WET 2013 Detected increasing uncorrectable errors[837] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Wed Nov 27 07:57:00 WET 2013 Detected increasing pending sector count[837] on disk 1 [ST31000340NS, 9QJ4C745]. This often indicates an impending failure. Please be prepared to replace this disk to maintain data redundancy.
Wed Nov 27 07:54:54 WET 2013 RAID sync finished on volume C. The array is still in degraded mode, however. This can be caused by a disk sync failure or failed disks in a multi-parity disk array.
Wed Nov 27 07:26:12 WET 2013 System is up.
Wed Nov 27 07:26:03 WET 2013 Volume C is approaching capacity: 96% used 76G available
Wed Nov 27 07:26:02 WET 2013 Your ReadyNAS device has been updated with a new firmware image. (RAIDiator-x86 4.2.24)
Wed Nov 27 07:22:14 WET 2013 Rebooting device...
Wed Nov 27 07:22:14 WET 2013 Please close this browser session and use RAIDar to reconnect to the device. System rebooting...
Tue Nov 26 18:35:01 WET 2013 System is up.
Tue Nov 26 18:34:47 WET 2013
Tue Nov 26 18:34:44 WET 2013 Volume scan found and corrected errors.
Tue Nov 26 17:34:01 WET 2013 ATA error count has increased in the last day. Disk 1: Previous count: 113 Current count: 116 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
Tue Nov 26 08:40:17 WET 2013 Powering off device
Tue Nov 26 08:40:17 WET 2013 Please close this browser session and use RAIDar to reconnect to the device after it is powered back on. System powering off...
Mon Nov 25 19:39:33 WET 2013 Error encountered uploading update image.
Mon Nov 25 19:38:32 WET 2013 Blinking disk lcd 3.
Mon Nov 25 19:38:25 WET 2013 Blinking disk lcd 1.
Mon Nov 25 19:38:02 WET 2013 Blinking disk lcd 1.
Mon Nov 25 19:25:07 WET 2013 ATA error count has increased in the last day. Disk 1: Previous count: 94 Current count: 113 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
Mon Nov 25 19:25:05 WET 2013 System is up.
Mon Nov 25 19:24:54 WET 2013 Volume C is approaching capacity: 96% used 76G available
Sun Nov 24 14:12:36 WET 2013 Newly added disk has failed SMART test on channel: 2 (/dev/sdb)
Sun Nov 24 13:55:13 WET 2013 Newly added disk has failed SMART test on channel: 1 (/dev/sda)
Sun Nov 24 13:55:06 WET 2013 System is up.
Sun Nov 24 13:54:11 WET 2013 Volume scan found and corrected errors.
Sun Nov 24 12:54:24 WET 2013 Reallocated sector count has increased in the last day. Disk 2: Previous count: 4 Current count: 402 ATA error count has increased in the last day. Disk 2: Previous count: 0 Current count: 6 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
Sat Nov 23 19:42:21 WET 2013 If the failed disk is used in a RAID level 1, 5, or X-RAID volume, please note that volume is now unprotected, and an additional disk failure may render that volume dead. 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. It is recommended that you replace the failed disk as soon as possible to maintain optimal protection of your volume.
Sat Nov 23 19:42:21 WET 2013 Disk failure detected.
Tue Nov 19 21:14:12 WET 2013 Volume C is approaching capacity: 97% used 73G available
Mon Nov 4 07:56:41 WET 2013 Volume C is approaching capacity: 99% used 35G available
Sun Nov 3 18:38:33 WET 2013 System is up.
Sun Nov 3 18:37:24 WET 2013 Volume scan found and corrected errors.
Sun Nov 3 11:09:20 WET 2013 Volume C is approaching capacity: 99% used 36G available
Sun Nov 3 04:00:45 WET 2013 Reallocated sector count has increased in the last day. Disk 3: Previous count: 6 Current count: 18 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to replace the disk.
Fri Nov 1 19:00:17 WET 2013 Reallocated sector count has increased in the last day. Disk 1: Previous count: 35 Current count: 38 Growing SMART errors indicate a disk that may fail soon. If the errors continue to increase, you should be prepared to

Do you have an up-to-date backup? If not, that should be the first priority.

Once that is done, I suggest that you check the drives with vendor tools on a PC (seatools for seagate, lifeguard for western digital).

sadly i never had enough space on any one drive on my pc to back up .. very odd it worked for about an hour last night .. wasnt until i rebooted the drives and this happened again.. going to try turning it back on later.. can the drives be checked on a pc i thought they would be unreadable . if they were connected up in raid on a pc would they work .

You can test the drives in a PC using the vendor tools. The file system can't be read, but the diagnostics don't care about that. The normal tests are non-destructive - there is a destructive write test in both diags, but you will be properly warned if you accidentally click on it.