Disk UNAVAIL and volume DEGRADED

[André Magrini]

Hello everybody!
I'm having a problem with my FreeNAS server (specifications below) and need some help. Most of the time everything seems OK and no alerts are shown, but when the disks are heavily used, only one of the 6 HDs (ada1) is going UNAVAIL and the volume enters DEGRADED state. Here goes the alert message, "dmesg", "zpool status" and "smarttcl -a" output:

DMESG:

ada1: <ST1000DM003-1SB10C CC43> ATA8-ACS SATA 3.x device
ada1: Serial Number Z9A2SZZY
ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
ada1: Command Queueing enabled
ada1: 953869MB (1953525168 512 byte sectors)
ada1: quirks=0x1<4K>
ada1: Previously was known as ad6
ada1 at ahcich1 bus 0 scbus1 target 0 lun 0
ada1: <ST1000DM003-1SB10C CC43> s/n Z9A2SZZY detached
(ada1:ahcich1:0:0:0): Periph destroyed
ada1 at ahcich1 bus 0 scbus1 target 0 lun 0

ZPOOL STATUS:

pool: PRDfreeNAS
state: DEGRADED
status: One or more devices could not be opened. Sufficient replicas exist for
the pool to continue functioning in a degraded state.
action: Attach the missing device and online it using 'zpool online'.
see: http://illumos.org/msg/ZFS-8000-2Q
scan: scrub repaired 0 in 16h45m with 0 errors on Mon Nov 28 09:07:02 2016
config:

NAME STATE READ WRITE CKSUM
PRDfreeNAS DEGRADED 0 0 0
raidz2-0 DEGRADED 0 0 0
gptid/e9479205-7070-11e6-8a80-a0369f833fe2 ONLINE 0 0 0
12545515186560614389 UNAVAIL 13 1.29K 0 was /dev/ada1p2
gptid/eb633d75-7070-11e6-8a80-a0369f833fe2 ONLINE 0 0 0
gptid/ec7a9bd9-7070-11e6-8a80-a0369f833fe2 ONLINE 0 0 0
gptid/eda6f787-7070-11e6-8a80-a0369f833fe2 ONLINE 0 0 0
gptid/eed1cbde-7070-11e6-8a80-a0369f833fe2 ONLINE 0 0 0

errors: No known data errors

pool: freenas-boot
state: ONLINE
scan: scrub repaired 0 in 0h0m with 0 errors on Wed Nov 23 03:45:55 2016
config:

NAME STATE READ WRITE CKSUM
freenas-boot ONLINE 0 0 0
gptid/191c0f75-7434-11e6-8d1a-000c29f2d6e4 ONLINE 0 0 0

errors: No known data errors

SMARTCTL -A:

[root@freenas] ~# smartctl -a /dev/ada1
smartctl 6.5 2016-05-07 r4318 [FreeBSD 10.3-STABLE amd64] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family: Seagate Barracuda 7200.14 (AF)
Device Model: ST1000DM003-1SB10C
Serial Number: Z9A2SZZY
LU WWN Device Id: 5 000c50 0913946b4
Firmware Version: CC43
User Capacity: 1,000,204,886,016 bytes [1.00 TB]
Sector Sizes: 512 bytes logical, 4096 bytes physical
Rotation Rate: 7200 rpm
Form Factor: 3.5 inches
Device is: In smartctl database [for details use: -P show]
ATA Version is: ATA8-ACS T13/1699-D revision 4
SATA Version is: SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is: Mon Nov 28 09:37:10 2016 BRST
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: ( 0) seconds.
Offline data collection
capabilities: (0x73) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
No 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: ( 1) minutes.
Extended self-test routine
recommended polling time: ( 105) minutes.
Conveyance self-test routine
recommended polling time: ( 2) minutes.
SCT capabilities: (0x1085) SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x000f 100 063 006 Pre-fail Always - 35767
3 Spin_Up_Time 0x0003 099 097 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 095 095 020 Old_age Always - 5475
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 065 060 045 Pre-fail Always - 3199777
9 Power_On_Hours 0x0032 098 098 000 Old_age Always - 1990
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 095 095 020 Old_age Always - 5475
183 Runtime_Bad_Block 0x0032 100 100 000 Old_age Always - 0
184 End-to-End_Error 0x0032 100 100 099 Old_age Always - 0
187 Reported_Uncorrect 0x0032 100 100 000 Old_age Always - 0
188 Command_Timeout 0x0032 100 100 000 Old_age Always - 0 0 0
189 High_Fly_Writes 0x003a 100 100 000 Old_age Always - 0
190 Airflow_Temperature_Cel 0x0022 076 067 040 Old_age Always - 24 (Min/Max 24/25)
193 Load_Cycle_Count 0x0032 098 098 000 Old_age Always - 5525
194 Temperature_Celsius 0x0022 024 017 000 Old_age Always - 24 (0 17 0 0 0)
195 Hardware_ECC_Recovered 0x001a 100 003 000 Old_age Always - 35767
197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 0
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 0
199 UDMA_CRC_Error_Count 0x003e 200 200 000 Old_age Always - 0
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 1953h+06m+17.358s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 694026865
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 79067041

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 Extended offline Completed without error 00% 1116 -

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.

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


Can anyone help me find what's going on, please?
Thank you all very much!

 

[André Magrini]

Server specifications:

Motherboard: Intel S1200SPL
Processor: Xeon BX80662E31240V5
RAM: 2 x KVR21E15D88
Hard disks: 6 x ST1000DM003

 

[André Magrini]

Complete SMARTCTL -A attached.

 

[Bidule0hm]

First problem: this drive only has seen one test in its life and it was almost 1000 hours ago. You should look at how your SMART are configured because there's something wrong somewhere.

Second problem: this drive reports a lot (like "I never seen that many before") of UDMA ECC errors which are usually because of a bad contact (try to reseat both end of the SATA cable), a bad SATA cable (try another cable), bad power (bad contact, bad PSU, ...) or a bad drive. Given the drive is one of the famous ST1000DM003 it's maybe the drive (even if usually it's the less likely option) but try to change the SATA cable first.

Third problem: the ST1000DM003 drives are very very unreliable, and I'm not saying that because I'm a WD fanboy or whatever (actually I've both brands in my NAS) it's just a bad model with a near to 100 % failure rate.

 

[Robert Trevellyan]

(ada1:ahcich1:0:0:0): Periph destroyed

This is a sure sign of either loss of power to the drive, or an unresponsive (failing) drive. Might be as simple as a bad SATA power cable.

ST1000DM003 drives are very very unreliable

You might be thinking of the 3TB model (ST3000DM001).

 

[Bidule0hm]

Ah, got the 1 and the 3 reversed, my bad. And I've a cold, not that good for neurons I guess...