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Starting a new unRAID server off with a single 2TB drive, bad idea?

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So if you're paranoid, just do it I guess.

So if being called paranoid is the alternative to being called stupid, I'd rather be called paranoid I guess.

For most of us with home servers, there are not the time-pressures that exist in the commercial world.  We can take an additional day to pre-clear a disk. 

 

It is not paranoid, or stupid, but cautious  ;).  As I said, burning in a drive is never necessary...  reducing the off-line-time of your home media server is not necessary... But if you have the luxury of being able to pre-clear/test/exercise the disk before adding it to the array, recommended. 

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The general consensus seems to be that I should run a preclear, so since nothing is time sensitive I will.  Here is where I am at now

 

unraid.jpg

 

I have not yet formatted the disks and have downloaded the preclear_disk.sh from your main post Joe L.  Hopefully I can figure this out by reading your preclear post, but I just wanted to make sure I was on the right track before I moved on.  Thanks to everyone who has been of such great assistance here.

I tend to preclear less to see if the disk is DOA or has other problems (though this is a useful side effect) but more to just allow the array to be online available during the preclearing.

 

If left to unraid the array (I believe) has to be stopped during this process which isn't very convenient.

 

Once precleared it's a matter of seconds to stop the array, assign the precleared disk and start the array again. Minimal array downtime.

The general consensus seems to be that I should run a preclear, so since nothing is time sensitive I will.  Here is where I am at now

 

unraid.jpg

 

I have not yet formatted the disks and have downloaded the preclear_disk.sh from your main post Joe L.  Hopefully I can figure this out by reading your preclear post, but I just wanted to make sure I was on the right track before I moved on.  Thanks to everyone who has been of such great assistance here.

You will need to un-assign the disks from your array before running the pre-clear script on them.  It is coded that way to prevent you from accidentally clearing a drive that is already part of your array, and holding your precious data.

 

Joe L.

I like how you've blurred out your hard drive serial numbers.  ;D  There is certainly nothing wrong with that, but just to let you know, it is unnecessary.  There is nothing malicious that any of us can do with those numbers.  We cannot steal your data, or your unRAID license (if you had one).

I like how you've blurred out your hard drive serial numbers.  ;D 

If you give it some thought, you'll discover that "3560freak" decyphers as "Blur Freak".

Speaking of blur... I see you blurred your avatar!?  :o 

And I was just about to steal something from that disk darnit!

 

If you give it some thought, you'll discover that "3560freak" decyphers as "Blur Freak".

Not following you here....

 

Speaking of blur... I see you blurred your avatar!?  :o 

And I was just about to steal something from that disk darnit!

That's not blur, that's a halo!  My disks are divine.  ;)

 

By the way, the disk in my avatar is a 2 yottabyte disk from the future, and it contains the entire internet.  It is therefore 87% porn.

the disk in my avatar is a 2 yottabyte disk from the future, and it contains the entire internet.  It is therefore 87% porn.

LOL that's a good one Rajahal !!  ;D  You should put that below the avatar!

 

Meh, function over form.  I like the motherboard rating system, I know I used it a lot when initially looking for a motherboard for my system.  I'll leave the comment buried in this thread for future internet archaeologists to unearth.  They are already underway:

 

Internet Archaeologists Find Ruins of Friendster

(that link is blocked by my work firewall, so I hope it works for you...)

 

By the way, you should add your motherboard to your profile using the Motherboard Rating System.

  • Author

I like how you've blurred out your hard drive serial numbers.  ;D  There is certainly nothing wrong with that, but just to let you know, it is unnecessary.  There is nothing malicious that any of us can do with those numbers.  We cannot steal your data, or your unRAID license (if you had one).

 

sorry, force of habit I guess.  I used to be a part of a cell phone forum and giving out ESN/IMEI numbers could lead to potential abuse (cloning, etc) so it was always blurred out.

Meh, function over form.  I like the motherboard rating system, I know I used it a lot when initially looking for a motherboard for my system.  I'll leave the comment buried in this thread for future internet archaeologists to unearth.  They are already underway:

 

Internet Archaeologists Find Ruins of Friendster

(that link is blocked by my work firewall, so I hope it works for you...)

 

That was pretty funny!

  • Author

should I be worried?  I just precleared all disks and no really errors showed, but after formatting the disks the console shows 182 errors on disk 2.

 

unraiderror.jpg

 

 

Get a new smart report on that disk.  It might be the disk, it might be the cabling to it.

Post a syslog.  It might have clues as to the nature of the errors.

 

Joe L.

  • Author

=== START OF INFORMATION SECTION ===

Device Model:    WDC WD15EARS-00Z5B1

Serial Number:    WD-WMAVU2535875

Firmware Version: 80.00A80

User Capacity:    1,500,301,910,016 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:    Mon Apr 12 18:40:10 2010 GMT+8

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:  (0x85) Offline data collection activity

was aborted by an interrupting command from host.

Auto Offline Data Collection: Enabled.

Self-test execution status:      ( 118) The previous self-test completed having

the read element of the test failed.

Total time to complete Offline

data collection: (34200) 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: ( 255) minutes.

Conveyance self-test routine

recommended polling time: (  5) minutes.

SCT capabilities:       (0x3031) 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  179  179  021    Pre-fail  Always      -      6025

  4 Start_Stop_Count        0x0032  100  100  000    Old_age  Always      -      17

  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  100  100  000    Old_age  Always      -      123

10 Spin_Retry_Count        0x0032  100  253  000    Old_age  Always      -      0

11 Calibration_Retry_Count 0x0032  100  253  000    Old_age  Always      -      0

12 Power_Cycle_Count      0x0032  100  100  000    Old_age  Always      -      13

192 Power-Off_Retract_Count 0x0032  200  200  000    Old_age  Always      -      11

193 Load_Cycle_Count        0x0032  200  200  000    Old_age  Always      -      64

194 Temperature_Celsius    0x0022  119  115  000    Old_age  Always      -      31

196 Reallocated_Event_Count 0x0032  200  200  000    Old_age  Always      -      0

197 Current_Pending_Sector  0x0032  200  200  000    Old_age  Always      -      27

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      -      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: read failure      60%      123        3087

 

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.

 

You've got 27 sectors pending re-allocation. (when they are next written)

  • Author

so since these are blank drives, I guess there is nothing to worry about.  Thank you Joe L for all of your tremendous assistance

so since these are blank drives, I guess there is nothing to worry about.  Thank you Joe L for all of your tremendous assistance

Since it already has pending sectors I would return it for a replacement if this is a new drive. There should not be any at all on a new drive.

Since it already has pending sectors I would return it for a replacement if this is a new drive. There should not be any at all on a new drive.

 

I would RMA it too. It's new. There should be 0.

 

My 9 month old WD's with nearly 6400 power on hours have -0- reallocated events and current pending sector.

 

  • Author

does anyone know how strict Fry's Electronics is on returning drives for this reason?  Since they are not technically supposed to be RAID class drives will they hassle me?

Dont mention raid at all. How unRAID uses the drives is more like typical desktop use. Mention that you ran a SMART test which indicated it had failing sectors.

 

You might also want to run a long smart test too and see how bad the issue is.

does anyone know how strict Fry's Electronics is on returning drives for this reason?  Since they are not technically supposed to be RAID class drives will they hassle me?

Why in the world would you tell them you were returning it because of unraid issues? It has nothing to do with unraid. The pending sectors are reported from the firmware built into the drive its self. Is this the first time you have ever returned something to the store. When returning something it is best to only state the actual cause for the return as simple and as clear as possible. Saying anything about issues that have nothing to do with it will just confuse them and they may just end up giving you store credit only. Though, you probably just want an exchange, which should be no problem if you simply tell them this drive is defective and you would like a new one. :D
  • Author

I guess it only gets worse.  Here is what I've got today.  I guess the drive is going back

 

unraidprob.jpg

 

The fact that the drive is showing as "red" indicates that a write to it failed.  Unless a cable is loose, you should RMA that thing and stop pulling your hair out over it.

Yeah, get an RMA for it, and get yourself a replacement disk. From the read of this thread you've had a bit of bad luck with this disk.

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