Zpool problems

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depasseg

depasseg

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So unless you lost 2 drives, your pool should still be accessible. Assuming you didn't lose 2 drivers, either you have some hardware raid in the mix, or a corrupted install.
 
T

Terence Faul

Dabbler
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Messages
45
Hi

No hardware raid. All drives are sata.

I have created a new install on USB the problem is that I cannot see the pool and therefore cannot import the pool.

How can I make the pool visible.
 
depasseg

depasseg

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That's like asking how do I make a disk visible.

If am adequate number of drives from a pool are available, and you run zpool import, whatever pills that are found will be shown. So either your new install is corrupt, or you are missing too many drives.
 
T

Terence Faul

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That is not grea news. I will try and build another install and give it a go.

So I am starting to be less and less optimistic. Can it help to build a earlier version of freenas.

Is there a way to copy the data off the drives without importing/mounting the pool?
 
joeschmuck

joeschmuck

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Terence Faul said:
Can it help to build a earlier version of freenas.
Click to expand...
It depends on if you upgraded the pool to the latest version each time. When I upgrade my FreeNAS versions, I do not upgrade my pools anymore so I can move backwards. If you wanted to use a 9.3 version 6 months old or so, that should be fine.

Also I gave you some advice on testing your ada1 drive again as it look like it could be a failing drive. With RAIDZ1 if ada4 is also causing issues, it's very likely your pool is gone but until you have tested ada1 again, I'm not willing to say that. If you need your data, also move the drives into another machine if using an older FreeNAS boot image fails.
 
T

Terence Faul

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Messages
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joeschmuck

Do we still have a problem

Code:
[root@freenas] ~# smartctl -a /dev/ada4
smartctl 6.3 2014-07-26 r3976 [FreeBSD 9.3-RELEASE-p28 amd64] (local build)
Copyright (C) 2002-14, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital Caviar Green (AF, SATA 6Gb/s)
Device Model:     WDC WD20EARX-00PASB0
Serial Number:    WD-WCAZAE112434
LU WWN Device Id: 5 0014ee 207050db1
Firmware Version: 51.0AB51
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Wed Jan 20 10:07:05 2016 PST
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:         (39300) 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:      ( 379) minutes.
Conveyance self-test routine
recommended polling time:      (   5) minutes.
SCT capabilities:            (0x3035)    SCT Status 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       -       1
  3 Spin_Up_Time            0x0027   175   168   021    Pre-fail  Always       -       6233
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       348
  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   076   076   000    Old_age   Always       -       17864
10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       346
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       304
193 Load_Cycle_Count        0x0032   184   184   000    Old_age   Always       -       48621
194 Temperature_Celsius     0x0022   112   093   000    Old_age   Always       -       38
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   200   200   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       1

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%     17820         -
# 2  Short offline       Completed without error       00%     17777         -
# 3  Short offline       Completed without error       00%     17775         -
# 4  Short offline       Completed without error       00%     17774         -
# 5  Short offline       Completed without error       00%     17773         -
# 6  Short offline       Completed without error       00%     17772         -
# 7  Short offline       Completed without error       00%     17771         -
# 8  Short offline       Completed without error       00%     17770         -
# 9  Short offline       Completed without error       00%     17769         -
#10  Short offline       Completed without error       00%     17768         -
#11  Short offline       Completed without error       00%     17767         -
#12  Short offline       Completed without error       00%     17766         -
#13  Short offline       Completed without error       00%     17765         -
#14  Short offline       Completed without error       00%     17764         -
#15  Short offline       Completed without error       00%     17763         -
#16  Short offline       Completed without error       00%     17762         -
#17  Short offline       Completed without error       00%     17761         -
#18  Short offline       Completed without error       00%     17760         -
#19  Short offline       Completed without error       00%     17759         -
#20  Short offline       Completed without error       00%     17758         -
#21  Short offline       Completed without error       00%     17757         -

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.
 
joeschmuck

joeschmuck

Old Man
Moderator
Joined
May 28, 2011
Messages
10,994
No problem with ada4 which looks fine but you need to run the long test on drive ada1 which had the read error during the extended test.
Terence Faul said:
Serial Number: WD-WCAWZ1695717
1 Extended offline Completed: read failure 20% 29947 3484181056
Click to expand...
 
T

Terence Faul

Dabbler
Joined
Aug 12, 2015
Messages
45
Code:
[root@freenas] ~# smartctl -a /dev/ada1

smartctl 6.4 2015-06-04 r4109 [FreeBSD 10.2-STABLE amd64] (local build)

Copyright (C) 2002-15, Bruce Allen, Christian Franke, www.smartmontools.org


=== START OF INFORMATION SECTION ===

Model Family:     Western Digital Caviar Green (AF)

Device Model:     WDC WD20EARS-00J99B0

Serial Number:    WD-WCAWZ1695717

LU WWN Device Id: 5 0014ee 6ac887eae

Firmware Version: 80.00A80

User Capacity:    2,000,398,934,016 bytes [2.00 TB]

Sector Sizes:     512 bytes logical, 4096 bytes physical

Device is:        In smartctl database [for details use: -P show]

ATA Version is:   ATA8-ACS (minor revision not indicated)

SATA Version is:  SATA 2.6, 3.0 Gb/s

Local Time is:    Wed Jan 20 20:43:25 2016 PST

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:      ( 114)    The previous self-test completed having

                    the read element of the test failed.

Total time to complete Offline

data collection:         (34080) 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:    ( 329) minutes.

Conveyance self-test routine

recommended polling time:    (   5) minutes.

SCT capabilities:          (0x3035)    SCT Status 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   160   134   021    Pre-fail  Always       -       8966

  4 Start_Stop_Count        0x0032   098   098   000    Old_age   Always       -       2100

  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   059   059   000    Old_age   Always       -       30001

10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0

11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0

12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       906

192 Power-Off_Retract_Count 0x0032   199   199   000    Old_age   Always       -       823

193 Load_Cycle_Count        0x0032   037   037   000    Old_age   Always       -       489981

194 Temperature_Celsius     0x0022   113   091   000    Old_age   Always       -       39

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   200   200   000    Old_age   Offline      -       0

199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0

200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       1


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: read failure       20%     29998         3484181056

# 2  Extended offline    Completed: read failure       20%     29984         3484181056

# 3  Extended offline    Completed: read failure       20%     29947         3484181056

# 4  Short offline       Completed without error       00%     29905         -

# 5  Short offline       Completed without error       00%     29904         -

# 6  Short offline       Completed without error       00%     29903         -

# 7  Short offline       Completed without error       00%     29902         -

# 8  Short offline       Completed without error       00%     29901         -

# 9  Short offline       Completed without error       00%     29900         -

#10  Short offline       Completed without error       00%     29899         -

#11  Short offline       Completed without error       00%     29898         -

#12  Short offline       Completed without error       00%     29897         -

#13  Short offline       Completed without error       00%     29896         -

#14  Short offline       Completed without error       00%     29895         -

#15  Short offline       Completed without error       00%     29894         -

#16  Short offline       Completed without error       00%     29893         -

#17  Short offline       Completed without error       00%     29892         -

#18  Short offline       Completed without error       00%     29891         -

#19  Short offline       Completed without error       00%     29890         -

#20  Short offline       Completed without error       00%     29889         -

#21  Short offline       Completed without error       00%     29888         -


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.



[root@freenas] ~#
 
joeschmuck

joeschmuck

Old Man
Moderator
Joined
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Messages
10,994
That drive is bad.
 
T

Terence Faul

Dabbler
Joined
Aug 12, 2015
Messages
45
Out of interest what told you the drive was bad?

Does this mean there is no hope of saving my pool?

If there is a chance what should be the next step?
 
danb35

danb35

Hall of Famer
Joined
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Messages
15,504
Terence Faul said:
Out of interest what told you the drive was bad?
Click to expand...
The fact that it's consistently failing SMART self-tests is, IMO, a surefire indication.
 
danb35

danb35

Hall of Famer
Joined
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Messages
15,504
Code:
# 1  Extended offline    Completed: read failure       20%     29998         3484181056
# 2  Extended offline    Completed: read failure       20%     29984         3484181056
# 3  Extended offline    Completed: read failure       20%     29947         3484181056
 
T

titan_rw

Guru
Joined
Sep 1, 2012
Messages
586
Terence Faul said:
This is the result for all disks with:

Code:
zdb -l /dev/ada4


I am not getting a good feeling about this
Click to expand...

titan_rw said:
This is expected. ZFS (normally) lives in the p2 partitions of your drives. And your gpart show does show the p2 partitions. Try "zdb -l /dev/adaXp2".
Click to expand...

Still curious as the the above output I asked for on Monday. If the labels show up, then I wonder why the drives don't show up during a zpool import. If the labels don't show up, then I wonder what corrupted them.
 
T

Terence Faul

Dabbler
Joined
Aug 12, 2015
Messages
45
[root@freenas] ~# zdb -l /dev/ada4

--------------------------------------------

LABEL 0

--------------------------------------------

failed to unpack label 0

--------------------------------------------

LABEL 1

--------------------------------------------

failed to unpack label 1

--------------------------------------------

LABEL 2

--------------------------------------------

failed to unpack label 2

--------------------------------------------

LABEL 3

--------------------------------------------
 
T

Terence Faul

Dabbler
Joined
Aug 12, 2015
Messages
45
All drives have the same output

Code:
[root@freenas] ~# zdb -l /dev/ada3
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~# zdb -l /dev/ada2
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~# zdb -l /dev/ada1
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~# zdb -l /dev/ada0
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~#
 
danb35

danb35

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T

Terence Faul

Dabbler
Joined
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Messages
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Sorry miss read, here it is for all drives

Code:
[root@freenas] ~# zdb -l /dev/ada0p2
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~# zdb -l /dev/ada1p2
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~# zdb -l /dev/ada2p2
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~# zdb -l /dev/ada3p2
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~# zdb -l /dev/ada4p2
--------------------------------------------
LABEL 0
--------------------------------------------
failed to unpack label 0
--------------------------------------------
LABEL 1
--------------------------------------------
failed to unpack label 1
--------------------------------------------
LABEL 2
--------------------------------------------
failed to unpack label 2
--------------------------------------------
LABEL 3
--------------------------------------------
failed to unpack label 3
[root@freenas] ~#
 
T

titan_rw

Guru
Joined
Sep 1, 2012
Messages
586
That's strange it's not finding the labels.

I was looking at: https://forums.freebsd.org/threads/need-help-to-recover-data-from-damaged-zfs-pool.49782/

Can you try: (substituting the appropriate drive)

Code:
dd if=/dev/da0p2 | strings | grep pool_guid


It should find some hits, fairly quickly:

Code:
root@nas ~ # dd if=/dev/da0p2 | strings | grep pool_guid
  pool_guid
  pool_guid


Also as per that webpage, does the following show similar: (substituting the appropriate drive)

Code:
root@nas ~ # dd if=/dev/da0p2 bs=1k skip=128 count=1 | hd
1+0 records in
1+0 records out
1024 bytes transferred in 0.003580 secs (286045 bytes/sec)
00000000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|


Note the little endian encoded uberblock "00 ba b1 0c"

For example, all my drives show up uberblocks as follows:

Code:
root@nas ~ # dd if=/dev/da2p2 bs=1k | hd | grep "0c b1 ba 00"
00020000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00021000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00022000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00023000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00024000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00025000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00026000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00027000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00028000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00029000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
0002a000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
0002b000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
0002c000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
0002d000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
0002e000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
0002f000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
00030000  0c b1 ba 00 00 00 00 00  88 13 00 00 00 00 00 00  |................|
 
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