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Healthy disk rendered dead

Tischnoetentoet
Aspirant

Healthy disk rendered dead

Hello,

A few weeks back, my NAS warned me that a disk was dead. I ordered 2 new disks (WD30EFRX) and replaced it. All went fine until today: a new email saying a disk was rendered dead. I thought it was one of the other disks (all 2 year old disks), but it was the new disk rendered dead.

I unplugged and checked the drive on my computer using CrystalDiskInfo (see http://sourceforge.jp/projects/crystaldiskinfo). It says the disk is healthy, so I screwed it back and put it back into the NAS. However, it is still being rendered dead.

How is this possible and is there a way to fix this?
Message 1 of 11
mdgm-ntgr
NETGEAR Employee Retired

Re: Healthy disk rendered dead

Perhaps a slot in the NAS is faulty.

Have you tried backing up your data, doing a factory default (wipes all data, settings, everything) then restoring your data from backup?
Message 2 of 11
Tischnoetentoet
Aspirant

Re: Healthy disk rendered dead

First of all, thank you for your answer.

No, haven't tried that yet, I am doing a backup since I found out the disk is faulty (but it's 6 TB, it's a lot and will take time). Can it just happen that a slot can become faulty? I tried adding in a new disk as well, but that didn't even get recognized (but it was the other disk (I ordered 2 when the first disk faulted)). I assumed that the new disk was dead on delivery, but a faulty slot sounds more real to me.

A factory reset will also reset all addons and settings, right? Then I need to be sure that I have everything into place. What is the estimated % of success rate of a factory reset?
Message 3 of 11
mdgm-ntgr
NETGEAR Employee Retired

Re: Healthy disk rendered dead

Assuming the new disk is fine, but marked as dead then there could be a problem with the slot. Can you try an extended test of the disk using WD Data LifeGuard Diagnostics?

When did you purchase this NVX? Did you purchase it brand new?

Is it a NVX or a NVX Pioneer?

Yes a factory reset will wipe the disks.

Depends on what the issue is. I guess you could send me your logs first if you like.
Message 4 of 11
Tischnoetentoet
Aspirant

Re: Healthy disk rendered dead

It's a ReadyNAS NVX Business Edition [X-RAID2] running RAIDiator 4.2.27 .

I purchased it new, but it's quite some years back (16-08-2009). I will check the logs and the tool.
Message 5 of 11
Tischnoetentoet
Aspirant

Re: Healthy disk rendered dead

Here is the latest SMART report from the readynas logs, doesn't look dead to me:


=== START OF INFORMATION SECTION ===
Device Model: WDC WD30EFRX-68EUZN0
Serial Number: [removed]
LU WWN Device Id: [removed]
Firmware Version: 82.00A82
User Capacity: 3,000,592,982,016 bytes [3.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: ACS-2 (revision not indicated)
Local Time is: Tue Oct 28 22:22:17 2014 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0x00) Offline data collection activity
was never started.
Auto Offline Data Collection: Disabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (38580) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0x0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0x01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 255) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0x703d) SCT Status supported.
SCT Error Recovery Control supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always - 0
3 Spin_Up_Time 0x0027 194 194 021 Pre-fail Always - 5300
4 Start_Stop_Count 0x0032 100 100 000 Old_age Always - 6
5 Reallocated_Sector_Ct 0x0033 200 200 140 Pre-fail Always - 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always - 0
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 825
10 Spin_Retry_Count 0x0032 100 253 000 Old_age Always - 0
11 Calibration_Retry_Count 0x0032 100 253 000 Old_age Always - 0
12 Power_Cycle_Count 0x0032 100 100 000 Old_age Always - 6
192 Power-Off_Retract_Count 0x0032 200 200 000 Old_age Always - 3
193 Load_Cycle_Count 0x0032 200 200 000 Old_age Always - 8
194 Temperature_Celsius 0x0022 114 109 000 Old_age Always - 36
196 Reallocated_Event_Count 0x0032 200 200 000 Old_age Always - 0
197 Current_Pending_Sector 0x0032 200 200 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0030 100 253 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x0032 200 200 000 Old_age Always - 0
200 Multi_Zone_Error_Rate 0x0008 100 253 000 Old_age Offline - 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error
# 1 Short offline Completed without error 00% 0 -

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0x0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.
Message 6 of 11
mdgm-ntgr
NETGEAR Employee Retired

Re: Healthy disk rendered dead

The warranty has definitely expired then. The warranty is five years for the NVX Business Edition from the date of purchase.

You could perhaps check if there is a build up of dust.
Message 7 of 11
Tischnoetentoet
Aspirant

Re: Healthy disk rendered dead

Not sure if a dust can make a healthy disk (the nas does know according to the log) appear non-healthy. But I'll check anyway.
Message 8 of 11
mdgm-ntgr
NETGEAR Employee Retired

Re: Healthy disk rendered dead

Have you tried powering off the NAS, powering it on again and then after it finishes booting adding the healthy disk?
Message 9 of 11
Tischnoetentoet
Aspirant

Re: Healthy disk rendered dead

Doing that now, as well as a quick test of the "healthy" disk using the WD Data LifeGuard Diagnostics.
Message 10 of 11
Tischnoetentoet
Aspirant

Re: Healthy disk rendered dead

Already tried rebooting today, but that didn't work. I just performed these steps:

1) Shut down the NAS
2) Ensure disk is removed (it already was)
3) Clean up any disk (there wasn't, but made sure)
4) Start without disks (make sure it boots)
5) Add same disk (that faulted earlier but is definitely good) => new disk added notification, starts rebuilding raid

I also checked the other disk (the 2nd reserve disk that wasn't even detected) using the WD Diagnostics app, it's fine as well. I think somehow the NAS had an internal bit set to faulty to true while it should have been set to false. Shutting it down and starting it without the disk seems to solve the problem.

Thanks for your support!
Message 11 of 11
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