ReadyNas NV+ "Kernel Panic"

Do you have a backup? Also, was there anything you might have done that resulted in this behavior?

If you have a scratch disk (whether approved or not), you can power down the NAS and remove the drives (recording the slot order). Then insert the scratch disk and power up. If the hardware is functional, it will do a factory install. If all that works, then shut it down and reinstall the original disks in the correct slots.

You could also try powering up the NAS w/o disk 1 (but with all the rest), and see if that works. You can repeat that experiment with the other drives removed (one at a time). Be sure you have the NAS powered down when you insert/remove drives in this particular test.

If that fails, you could try an OS reinstall from the front panel with all disks in place.

mdgm (or others) might have some other ideas.

if you can test the disks with SeaTools that could also be good.

StephenB wrote:

Do you have a backup? Also, was there anything you might have done that resulted in this behavior? If you have a scratch disk (whether approved or not), you can power down the NAS and remove the drives (recording the slot order). Then insert the scratch disk and power up. If the hardware is functional, it will do a factory install. If all that works, then shut it down and reinstall the original disks in the correct slots. You could also try powering up the NAS w/o disk 1 (but with all the rest), and see if that works. You can repeat that experiment with the other drives removed (one at a time). Be sure you have the NAS powered down when you insert/remove drives in this particular test. If that fails, you could try an OS reinstall from the front panel with all disks in place. mdgm (or others) might have some other ideas.

Hi Stephen

Thanks for reply , I have a back-up of the NAS on my secod readynas but its a bit out of date & for some reason some files would never copy across, so its there with most of my files, but not ideal.

The NV+ stuck in 'Checking Quota' for about a day I pulled the power & rebooted to find the kernel panic message.

I've performed two memory check which are O.K.

Apologies but not too sure what you mean by scratch disk, if its just a spare disk then I dont have one I'm afraid.

I'll try pulling the disks tonight & let you know how I get on.

mdgm wrote:
if you can test the disks with SeaTools that could also be good.

Thanks mdgm, I've downloaded & ran SeaTools, but it doesn't seem to detect the NAS/ drives.

clingon wrote:
Apologies but not too sure what you mean by scratch disk, if its just a spare disk then I dont have one I'm afraid.

yes, a spare.

clingon wrote:
I've downloaded & ran SeaTools, but it doesn't seem to detect the NAS/ drives.

Of course not. You need to pull the drives and connect them to the PC. USB adapters/enclosures will work - or connect it as an internal drive. Windows won't recognize the partitions, but seatools should see the drive and let you test it.

OK I removed the drives one by one, powering up after each removal & the NAS booted up when the 3rd drive was removed. :)

I can now see the NAS in RAIDar however the volume status is black (no green LED icon next to it)

The three drives all have the green LED icon next to them.

I can login to the NAS via Frontview, however volume is at "0%"

I'm guessing this may be due to the fact one drive has been removed from the array or I've suffered two HDD failures.

I dont really have any means of mounting a HDD externally to test with SeaTools.

Any ideas where I can go from here, or a way to see if the data has indeed been lost for good?

Thanks

Removing 1 drive should not destroy the array. Two disk failures would.

What are the SMART stats for drives 1, 2, 4? Can you test drive 3 with seatools?

SMART Information for Disk 1

Model: ST31000340AS
Serial:
Firmware: SD15
SMART Attribute
Spin Up Time 0
Start Stop Count 41
Reallocated Sector Count 1
Power On Hours 27103
Spin Retry Count 0
Power Cycle Count 41
End-to-End Error 0
Reported Uncorrect 0
Command Timeout 195
High Fly Writes 0
Airflow Temperature Cel 37
Temperature Celsius 37
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
ATA Error Count 0

Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 0
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0

Model: ST31000528AS
Serial:
Firmware: CC38
SMART Attribute
Spin Up Time 0
Start Stop Count 41
Reallocated Sector Count 4015
Power On Hours 21258
Spin Retry Count 0
Power Cycle Count 31
Runtime Bad Block 0
End-to-End Error 0
Reported Uncorrect 21
Command Timeout 5
High Fly Writes 2
Airflow Temperature Cel 37
Temperature Celsius 37
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Head Flying Hours 80423262636686
Total LBAs Written 3428999559
Total LBAs Read 1738524349
ATA Error Count 2

Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 4
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0

SMART Information for Disk 4

Model: ST31000333AS
Serial:
Firmware: CC3H
SMART Attribute
Spin Up Time 0
Start Stop Count 33
Reallocated Sector Count 547
Power On Hours 22779
Spin Retry Count 0
Power Cycle Count 33
End-to-End Error 0
Reported Uncorrect 0
Command Timeout 198
High Fly Writes 2481
Airflow Temperature Cel 35
Temperature Celsius 35
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Head Flying Hours 25649544714491
Total LBAs Written 1088682522
Total LBAs Read 1532706649
ATA Error Count 0

Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 2
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0

Im currently waiting on a HDD dock which I can use to test the disk 3, it should be with me in less than a week

At least two of disks 1, 2 and 4 look like they need replacing.

My guess would be disks weren't replaced when they needed to be and now it's too late.

It looks like data recovery for this array would be expensive with no guarantees that it would be successful.

Did you manage to grab the logs zip file?

If so could you email it to me?: http://www.readynas.com/kb/faq/misc/how_do_i_send_all_logs

The first disk in the list (1 reallocated sector) would be on my watch list, but usually I'd still keep it in service. Though if I saw any operational issues due to the 195 command timeouts I would replace it. I did have one disk that starting timing out/locked up and had command timeouts and ATA issues, but the SMART stats were otherwise flawless (no bad sectors, etc).

The second disk has ~4000 reallocated sectors and the third has ~500. Generally I advise replacement at 25-50 reallocated(+ pending) sectors. Yours are definitely not in good shape.

Thanks very much guys. Looks like I'll need to need to refer to the back up I have of the NAS. :(

I looking at grading to 3tb drives but I'm not sure thats possible?

Would I be able to get your opinion on the other NAS drives I have in the second NAS? Think disk 4 deffo needs replaced & have it on order.

SMART Information for Disk 1

Model: ST32000542AS
Serial:
Firmware: CC34
SMART Attribute
Spin Up Time 0
Start Stop Count 16
Reallocated Sector Count 0
Power On Hours 21468
Spin Retry Count 0
Power Cycle Count 16
Runtime Bad Block 0
End-to-End Error 0
Reported Uncorrect 0
Command Timeout 2
High Fly Writes 0
Airflow Temperature Cel 29
Temperature Celsius 29
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Head Flying Hours 35704063153154
Total LBAs Written 2377468691
Total LBAs Read 194724557
ATA Error Count 0

Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 3
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0

SMART Information for Disk 2

Model: ST32000542AS
Serial:
Firmware: CC34
SMART Attribute
Spin Up Time 0
Start Stop Count 16
Reallocated Sector Count 0
Power On Hours 21467
Spin Retry Count 0
Power Cycle Count 16
Runtime Bad Block 0
End-to-End Error 0
Reported Uncorrect 0
Command Timeout 2
High Fly Writes 4
Airflow Temperature Cel 32
Temperature Celsius 32
Current Pending Sector 0
Offline Uncorrectable 0
UDMA CRC Error Count 0
Head Flying Hours 177652732285954
Total LBAs Written 4211743045
Total LBAs Read 855874854
ATA Error Count 0

Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 1
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0

SMART Information for Disk 3

Model: ST32000542AS
Serial:
Firmware: CC34
SMART Attribute
Spin Up Time 0
Start Stop Count 16
Reallocated Sector Count 0
Power On Hours 21466
Spin Retry Count 0
Power Cycle Count 16
Runtime Bad Block 0
End-to-End Error 0
Reported Uncorrect 0
Command Timeout 1
High Fly Writes 175
Airflow Temperature Cel 32
Temperature Celsius 32
Current Pending Sector 8
Offline Uncorrectable 8
UDMA CRC Error Count 0
Head Flying Hours 141119740466177
Total LBAs Written 316942558
Total LBAs Read 3936962998
ATA Error Count 0

Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 0
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0

SMART Information for Disk 4

Model: ST32000542AS
Serial:
Firmware: CC94
SMART Attribute
Spin Up Time 0
Start Stop Count 20
Reallocated Sector Count 2724
Power On Hours 20773
Spin Retry Count 0
Power Cycle Count 20
Runtime Bad Block 0
End-to-End Error 0
Reported Uncorrect 0
Command Timeout 1
High Fly Writes 0
Airflow Temperature Cel 29
Temperature Celsius 29
Current Pending Sector 929
Offline Uncorrectable 929
UDMA CRC Error Count 0
Head Flying Hours 135179800695126
Total LBAs Written 2983325951
Total LBAs Read 1625895409
ATA Error Count 0

Extended Attribute
Hot-add events 0
Hot-remove events 0
Lp stat events 3
Power glitches 0
Hard disk resets 0
Retries 0
Repaired sectors 0