As I had a 1.5 WD EADS lying around as I wait for my main harddrives, I decided to first preclear it and then I ran a SMART report when I saw some interesting numbers.  I'm just starting out so I don't really trust my interpretations of the numbers.  Although to me this drive looks like its on its way out.  Can someone take a look?

 

Thanks in advance.

smart_wd.txt

preclear_finish__WD-WCAVY0697441_2012-02-27.txt

As I had a 1.5 WD EADS lying around as I wait for my main harddrives, I decided to first preclear it and then I ran a SMART report when I saw some interesting numbers.  I'm just starting out so I don't really trust my interpretations of the numbers.  Although to me this drive looks like its on its way out.  Can someone take a look?

 

Thanks in advance.

RMA Time...

 

240 sectors already re-allocated, another pending 1025 when they are next written.

 

5 Reallocated_Sector_Ct  0x0033  170  170  140    Pre-fail  Always      -      240

197 Current_Pending_Sector  0x0032  196  195  000    Old_age  Always      -      1025

Thanks Joe L. 

 

RMA request completed 

 

Funny enough, it was this drive that eventually led me here to unRaid, as this is where I kept all of my media and I started noticing some performance issues.  Figured I should have some protection.

Thanks Joe L. 

 

RMA request completed 

 

Funny enough, it was this drive that eventually led me here to unRaid, as this is where I kept all of my media and I started noticing some performance issues.  Figured I should have some protection.

Do you have the preclear report?  The one with the summary of what happened.  (You posted the "final" smart report, actually twice.)

Oh, I didn't realize they did the same thing.  Shoulda noticed they were identical.  I tried to run the Extended SMART report but it said it ended after a read error.  I think the one I attached was the short.

preclear_rpt__WD-WCAVY0697441_2012-02-27.txt

Before you started the pre-clear, there were 1048 sectors pending re-allocation.

1048 sectors were pending re-allocation before the start of the preclear.

1048 sectors were pending re-allocation after pre-read in cycle 1 of 1.

Then, it wrote zeros to the entire drive.  The sectors pending re-allocation were all re-allocated

0 sectors were pending re-allocation after zero of disk in cycle 1 of 1.

Then, it re-read all the sectors that were written with zeros.  Oops... 1030 more un-readable sectors...

1030 sectors are pending re-allocation at the end of the preclear,

    a change of -18 in the number of sectors pending re-allocation.

 

The drive is constantly finding new-unreadable sectors.    You are lucky you did not lose much data using it in your old server.

 

230 sectors had been re-allocated before the start of the preclear.

235 sectors are re-allocated at the end of the preclear,

    a change of 5 in the number of sectors re-allocated.

 

The sectors re-allocated did not change much, so apparently the drive had re-written most of the bad sectors to themselves, thinking it did not need to use spare sectors from the pool of spare sectors.  That might indicate a problem with the power supply to the drive (the drive cannot reliably write to the disks because the power supply is unable to supply proper power to the disk electronics ) or it could just be a bad drive.

 

As I said previously... an RMA is in order... (the 235 re-allocated sectors, combined with the inability to read what was just written is far too many problems to rely on the drive for anything you value)

 

Joe L.