So today out of the blue one of my disks was diabled.  

 

I ran a reiserfsck command on the disk and got the following message:

 

Do you want to run this program?[N/Yes] (note need to type Yes if you do):Y

 

reiserfs_open: the reiserfs superblock cannot be found on /dev/sdi.

Failed to open the filesystem.

 

If the partition table has not been changed, and the partition is

valid  and  it really  contains  a reiserfs  partition,  then the

superblock  is corrupted and you need to run this utility with

--rebuild-sb.

 

I'm a little confused as to what to do next.

Should I run the "--rebuild-sb." command ?

 

Am I going to lose data here?

 

Any help from the experts would be greatly appreciated.

 

Kent

 

Here is a piece of the syslog:

 

Aug 22 11:16:51 Tower kernel: REISERFS error (device md4): zam-7001 reiserfs_find_entry: io error

Aug 22 11:16:51 Tower kernel: REISERFS error (device md4): vs-13070 reiserfs_read_locked_inode: i/o failure occurred trying to find stat data of [49730 50098 0x0 SD]

Aug 22 11:17:04 Tower last message repeated 83031 times

Aug 22 11:17:04 Tower emhttp: disk_temperature: ioctl (smart_enable): Input/output error

Aug 22 11:17:04 Tower kernel: REISERFS error (device md4): vs-13070 reiserfs_read_locked_inode: i/o failure occurred trying to find stat data of [49730 50098 0x0 SD]

Aug 22 11:17:04 Tower last message repeated 256 times

Aug 22 11:17:04 Tower emhttp: disk_temperature: ioctl (smart_enable): Input/output error

Aug 22 11:17:04 Tower kernel: REISERFS error (device md4): vs-13070 reiserfs_read_locked_inode: i/o failure occurred trying to find stat data of [49730 50098 0x0 SD]

Aug 22 11:17:25 Tower last message repeated 140004 times

Aug 22 11:17:25 Tower emhttp: disk_temperature: ioctl (smart_enable): Input/output error

Aug 22 11:17:25 Tower kernel: REISERFS error (device md4): vs-13070 reiserfs_read_locked_inode: i/o failure occurred trying to find stat data of [49730 50098 0x0 SD]

Aug 22 11:17:26 Tower last message repeated 255 times

Aug 22 11:17:26 Tower emhttp: disk_temperature: ioctl (smart_enable): Input/output error

Aug 22 11:17:26 Tower kernel: REISERFS error (device md4): vs-13070 reiserfs_read_locked_inode: i/o failure occurred trying to find stat data of [49730 50098 0x0 SD]

Aug 22 11:17:57 Tower last message repeated 192138 times

 

 

 

 

 

Here is the smart report for this drive, looks Ok I think:

 

smartctl -a -d ata /dev/sdi (disk4)

 

smartctl version 5.38 [i486-slackware-linux-gnu] Copyright © 2002-8 Bruce Allen

Home page is http://smartmontools.sourceforge.net/

 

=== START OF INFORMATION SECTION ===

Device Model:    WDC WD1001FALS-00J7B0

Serial Number:    WD-WMATV0331864

Firmware Version: 05.00K05

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:  Exact ATA specification draft version not indicated

Local Time is:    Sun Aug 22 13:07:31 2010 MDT

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:  (0x84) Offline data collection activity

was suspended by an interrupting command from host.

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: (19200) 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: ( 221) minutes.

Conveyance self-test routine

recommended polling time: (  5) minutes.

SCT capabilities:       (0x303f) 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  253  253  021    Pre-fail  Always      -      4433

  4 Start_Stop_Count        0x0032  098  098  000    Old_age  Always      -      2218

  5 Reallocated_Sector_Ct  0x0033  200  200  140    Pre-fail  Always      -      0

  7 Seek_Error_Rate        0x002e  200  200  051    Old_age  Always      -      0

  9 Power_On_Hours          0x0032  082  082  000    Old_age  Always      -      13373

10 Spin_Retry_Count        0x0032  100  100  051    Old_age  Always      -      0

11 Calibration_Retry_Count 0x0032  100  100  051    Old_age  Always      -      0

12 Power_Cycle_Count      0x0032  100  100  000    Old_age  Always      -      105

192 Power-Off_Retract_Count 0x0032  200  200  000    Old_age  Always      -      67

193 Load_Cycle_Count        0x0032  200  200  000    Old_age  Always      -      2218

194 Temperature_Celsius    0x0022  122  111  000    Old_age  Always      -      28

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  051    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%    13371        -

 

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.

Well, I tried again and was able to complete a ReiserFS check.

 

Do you want to run this program?[N/Yes] (note need to type Yes if you do):Yes

###########

reiserfsck --check started at Sun Aug 22 20:40:56 2010

###########

Replaying journal: Done.

Reiserfs journal '/dev/md4' in blocks [18..8211]: 0 transactions replayed

Checking internal tree.. finished

Comparing bitmaps..finished

Checking Semantic tree:

finished

No corruptions found

There are on the filesystem:

        Leaves 240262

        Internal nodes 1518

        Directories 10281

        Other files 109577

        Data block pointers 230984973 (630 of them are zero)

        Safe links 0

###########

reiserfsck finished at Sun Aug 22 21:59:38 2010

###########

 

The drive passed a smartctl test and is now being rebuilt.  Fingers crossed.

The drive passed a smartctl test and is now being rebuilt.  Fingers crossed.

 

Do you still have syslog?

 

if there were no SATA error along with those I/O error. i will run memtest to make sure memory is not an issue.

the original I/O error looks like happen when unRAID try to read disk temperature through ioctl while reading inode info.

GK20,

 

Thanks for taking the time.

memtest showed no issues and the drive rebuilt without problems.

 

Looks like all is good again.

 

Kent