Help dealing with error in daily output email

[NASbox]

Hi

Can someone please tell me if there is a way to answer the following questions
(Details follow the questions for ease of reading):

1. Have I sustained permanent data loss?
2. If yes, how can I determine which file(s) are damaged?
3. Are there any actions/tests I should run as a follow up.

I have a cron job dump the smart on all four drives in ZPOOL every night, and I don't see anything abnormal.

The reference URL given is useless.

Thanks in advance.

I am running the following version of FreeNas

Code:

FreeNAS Build	FreeNAS-8.0.4-RELEASE-p2-x64 (11367)
Platform	Intel(R) Pentium(R) CPU G620 @ 2.60GHz
Memory	16281MB
OS Version	FreeBSD 8.2-RELEASE-p7

and I got the following output

Code:

Removing stale files from /var/preserve:

Cleaning out old system announcements:

Backup passwd and group files:

Verifying group file syntax:
/etc/group is fine

Disk status:
Filesystem             Size    Used   Avail Capacity  Mounted on
/dev/ufs/FreeNASs2a    927M    379M    474M    44%    /
devfs                  1.0K    1.0K      0B   100%    /dev
/dev/md0               4.6M    1.9M    2.3M    44%    /etc
/dev/md1               824K    2.0K    756K     0%    /mnt
/dev/md2               149M     11M    126M     8%    /var
/dev/ufs/FreeNASs4      20M    979K     17M     5%    /data
TANK                   3.1T    2.6M    3.1T     0%    /mnt/TANK

Last dump(s) done (Dump '>' file systems):

Checking status of zfs pools:
  pool: TANK
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
	attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
	using 'zpool clear' or replace the device with 'zpool replace'.
   see: http://www.sun.com/msg/ZFS-8000-9P
 scrub: scrub completed after 2h51m with 0 errors on Sun Sep  2 05:52:36 2012
config:

	NAME        STATE     READ WRITE CKSUM
	TANK        ONLINE       0     0     0
	  raidz2    ONLINE       0     0     0
	    ada0p2  ONLINE       0     0     1  64K repaired
	    ada1p2  ONLINE       0     0     1  64K repaired
	    ada2p2  ONLINE       0     0     0
	    ada3p2  ONLINE       0     0     0

errors: No known data errors

Checking status of ATA raid partitions:

Checking status of gmirror(8) devices:

Checking status of graid3(8) devices:

Checking status of gstripe(8) devices:

Network interface status:
Name    Mtu Network       Address              Ipkts Ierrs Idrop    Opkts Oerrs  Coll
re0    1500 <Link#1>      xx:xx:xx:xx:86:3b    65386     0     0    67260     0     0
re0    1500 192.x.x.x   ************          60959     -     -    66065     -     -
lo0   16384 <Link#2>                              19     0     0       19     0     0
lo0   16384 fe80:2::1     fe80:2::1                0     -     -        0     -     -
lo0   16384 localhost     ::1                      0     -     -        0     -     -
lo0   16384 your-net      localhost                0     -     -       19     -     -

Security check:
    (output mailed separately)

Scrubbing of zfs pools:
   skipping scrubbing of pool 'TANK':
      last scrubbing is 0 days ago, threshold is set to 35 days

Checking status of 3ware RAID controllers:
Alarms (most recent first):
  No new alarms.

-- End of daily output --

 

[peterh]

1/no
3/ zpool scrub and watch the result ,
it seems right now that both ada0 and ada1 has errors, you cannot replace both at the same time, you must decide
which one to replace first. The scrub might give a hint.

then replace fault disks, one at a time, allow to resilver before replace the second disc.

 

[paleoN]

1. It told you, "Applications are unaffected."

3. Check the smart info:

Code:

smartctl -a /dev/ada0

smartctl -a /dev/ada1

To test the drives:

Code:

smartctl -t long /dev/ada0

smartctl -t long /dev/ada1

Then check smart info again.

 

[NASbox]

Results of Tests - Does this look OK?

Thank you peterh and paleoN for your replies - does it look like I have any hardware problems?
I can't see anything obviously wrong. I'm wondering if the issue was caused by a connected
client machine crash.

Below are the results of all the tests I have run:

I ran a scrub, and got the following results:

Code:

freenas# zpool status
  pool: TANK
 state: ONLINE
 scrub: scrub completed after 2h51m with 0 errors on Tue Sep  4 06:23:25 2012
config:

        NAME        STATE     READ WRITE CKSUM
        TANK        ONLINE       0     0     0
          raidz2    ONLINE       0     0     0
            ada0p2  ONLINE       0     0     0
            ada1p2  ONLINE       0     0     0
            ada2p2  ONLINE       0     0     0
            ada3p2  ONLINE       0     0     0

errors: No known data errors

I ran smartctl -t long /dev/ada0 and smartctl -t long /dev/ada1
and got the following results:


Test Results for /dev/ada0

Code:

freenas# smartctl -a /dev/ada0
smartctl 5.41 2011-06-09 r3365 [FreeBSD 8.2-RELEASE-p7 amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Device Model:     ST3000DM001-9YN166
Serial Number:    Z1F0DEKD
LU WWN Device Id: 5 000c50 03f6f0f48
Firmware Version: CC9C
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:  ATA-8-ACS revision 4
Local Time is:    Thu Sep  6 18:38:01 2012 EDT
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:  (0x82) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Enabled.
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:                (  575) 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:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 255) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x3081) 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   118   100   006    Pre-fail  Always       -       168238624
  3 Spin_Up_Time            0x0003   092   092   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       494
  5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   069   060   030    Pre-fail  Always       -       10020923
  9 Power_On_Hours          0x0032   083   083   000    Old_age   Always       -       15333
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       70
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   099   000    Old_age   Always       -       4295032833
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   074   052   045    Old_age   Always       -       26 (Min/Max 23/41)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       47
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       730
194 Temperature_Celsius     0x0022   026   048   000    Old_age   Always       -       26 (0 22 0 0)
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      -       81518479278531
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       16938743448480
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       16380447340997

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%     15326         -
# 2  Extended offline    Completed without error       00%        13         -
# 3  Conveyance offline  Completed without error       00%         5         -
# 4  Extended offline    Completed without error       00%         5         -

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.

Test Results for /dev/ada1

Code:

freenas# smartctl -a /dev/ada1
smartctl 5.41 2011-06-09 r3365 [FreeBSD 8.2-RELEASE-p7 amd64] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Device Model:     ST3000DM001-9YN166
Serial Number:    S1F032N3
LU WWN Device Id: 5 000c50 04a1e3765
Firmware Version: CC4C
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:  ATA-8-ACS revision 4
Local Time is:    Fri Sep  7 02:37:18 2012 EDT
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:  (0x82) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Enabled.
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:                (  584) 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:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 255) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x3085) 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   117   100   006    Pre-fail  Always       -       156010016
  3 Spin_Up_Time            0x0003   092   092   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       410
  5 Reallocated_Sector_Ct   0x0033   100   100   036    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   070   060   030    Pre-fail  Always       -       12269012
  9 Power_On_Hours          0x0032   083   083   000    Old_age   Always       -       15294
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       43
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
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   068   047   045    Old_age   Always       -       32 (Min/Max 23/41)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       22
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       797
194 Temperature_Celsius     0x0022   032   053   000    Old_age   Always       -       32 (0 23 0 0)
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      -       261692357345777
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       16934379848544
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       5472283561213

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%     15291         -
# 2  Extended offline    Completed without error       00%         8         -
# 3  Short offline       Completed without error       00%         2         -
# 4  Conveyance offline  Completed without error       00%         1         -

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.

Is there anything that I'm missing, or am I correct in assuming that I don't have
a serious hardware problem (assuming I don't see another reoccurance of this
problem)?

Thanks in advance for your input.

 

[cyberjock]

What you probably have is hard disk starting to have bad sectors or some other minor issue. You should continue to do your scrubs regularly and see if the amount of data that needs repairs on each scrub starts increasing. If it starts increasing rapidly you should replace that disk. Otherwise its nothing big to worry about.

Your data is still save as long as you don't have 3 disks that have problems in the same sectors at the same time. It's pretty unlikely to say the least. If you start having files corrupted when you do a # zpool status it will list some files and recommend you restore those from backup.

 

[paleoN]

Thank you peterh and paleoN for your replies - does it look like I have any hardware problems?
I can't see anything obviously wrong.

It looks fine to me as well.

What you probably have is hard disk starting to have bad sectors or some other minor issue. You should continue to do your scrubs regularly and see if the amount of data that needs repairs on each scrub starts increasing.

As you can see from the results, no bad sectors. Unless you meant it was a transient problem and it failed to read the sector earlier which is quite possible.

Like noobsauce80 said, keep an eye on your scrubs. You should have a regular schedule for smart tests for all your drives.

 

[NASbox]

Thanks very much for the input noobsauce80 & paleoN.

No further data issues, but is it likely that this might have something to do with it?

http://forums.freenas.org/showthrea...-Help-Determining-the-Cause&p=37296#post37296

I'd also appreciate guidance as to what automatic tests I should configure.

Thanks.

 

[cyberjock]

Thanks very much for the input noobsauce80 & paleoN.

No further data issues, but is it likely that this might have something to do with it?

http://forums.freenas.org/showthrea...-Help-Determining-the-Cause&p=37296#post37296

I'd also appreciate guidance as to what automatic tests I should configure.

Thanks.

I don't think that thread is related. I'd just do weekly scrubs of your zpool(s) and see what happens to the errors. Enable SMART if it isn't already and perhaps do a short test every 30 mins.