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[Solved] Existing Disk appearing as New Disk


insira

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Hi,

 

I have a very basic unraid setup.

Unraid Version: 4.7

Parity -1TB (SEGATE - ST1000DM003)

Disks

  DISK1 - 1TB (TOSHIBA - DT01ACA100)

 

Today morning suddenly the DISK1 appeared as not installed. But i was able to access the content of the disk via user shares. Just to make sure, i powered down the server and checked the connectors to DISK1 and made sure i plugged them to the same port. (I'm 100% sure i didn't change any of the connections).

 

Then i booted the system and now it's showing DISK1 as a new disk and asking to rebuild the data. I'm not sure if there is a problem with the drive. I have attached the syslog. Below is a smart report of DISK1.

 

root@MainTower:/# smartctl -a -d ata /dev/sda
smartctl 5.39.1 2010-01-28 r3054 [i486-slackware-linux-gnu] (local build)
Copyright (C) 2002-10 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Device Model:     TOSHIBA DT01ACA100
Serial Number:    
Firmware Version: MS2OA750
User Capacity:    1,000,204,886,016 bytes
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 Feb 13 01:23:01 2014 IST
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:  (0x80) Offline data collection activity
                                        was never started.
                                        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:                 (7556) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        ( 126) minutes.
SCT capabilities:              (0x003d) 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     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   141   141   054    Pre-fail  Offline      -       72
  3 Spin_Up_Time            0x0007   121   121   024    Pre-fail  Always       -       188 (Average 190)
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       461
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   118   118   020    Pre-fail  Offline      -       33
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       1076
10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       267
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       462
193 Load_Cycle_Count        0x0012   100   100   000    Old_age   Always       -       462
194 Temperature_Celsius     0x0002   171   171   000    Old_age   Always       -       35 (Lifetime Min/Max 25/49)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       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%      1075         -

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.

 

I tried rebooting the system, reassigning the drives. doesn't seem to be working.

 

Please let me know. what steps i can take to get the array back online.

 

Thanks in Advance.

 

Insira

 

syslog.txt

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Sorry, forgot to mention, that i had an additional drive setup as a SWAP+APP Drive. This drive has died, it wasn't a part of the Unraid array.

It only has a swap parition and a VM to download torrents.

 

Not sure if it has caused some write errors on DISK1. (Think the drive had dies while the unraid was UP). :'(

 

Anyways let me know how i am to proceed???

 

Thanks in advance

 

Insira

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Some new development in the situation,

 

I have been fiddling around with the SNAP, in hopes of trying to mount DISK1 as a separate share and see if the data is available.

So I un-assign DISK1 from my array, and mount the disk as a share using SNAP. got it to work. When I checked the data seems to intact. I'm in the process of coping the data into a secondary storage disk that i have; and upto now there seems to be no issues with the files.

 

Also un-assigning DISK1, restored all my user shares. Which I am clueless as to how it restored the shares with the disk out of the array:o

 

I'm think of going through with this as follow

  • Copy the content of DISK1 to secondary storage disk
  • start the rebuild process of the newdisk
  • do a checksum verification of the restored data and secondary storage data

 

I have a concern regarding step 2, should I preclear the disk and attempt the rebuild process or just press start in the unraid web UI and let it do the full rebuild process??

 

Thank you in Adance

 

Insira

 

 

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