Solid State Drives (SSD)

[bebbo]

My M4-CT512M4SSD2 (firmware 000f) has read errors.

The SSD is running in a

• Lenovo ThinkPad W520 Laptop/Notebook
• 16GB RAM
  
• Scan Id: AE974CED31D926C3
  
• http://www.crucial.com/systemscanner/viewscanbyid.aspx?id=AE974CED31D926C3

It worked quite well for about 1 year - now the SSD makes trouble. Some of the files are inaccessable.

• I am unable to create a file backup:
• - there are read errors which make the backup fail
• - options to ignore errors are resulting into stalling progress with HD LED on. Speed estimates are down to ~12kb/s
• It's also not possible to create a partition backup or a disk backup due to read errors

When I chatted with the crucial support, I got told: "read errors are normal, let the SSD idle 6 hours and everything is ok"

Well it did not help.

Here is some info from a SMART report:

----------------------------------------------------------------------------
    OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
  Date : 2012/08/23 18:56:38

-- Controller Map ----------------------------------------------------------
 + Ricoh PCIe SDXC/MMC Host Controller [ATA]
   - Ricoh SD Disk Device
 + Intel(R) Mobile Express Chipset SATA AHCI Controller [ATA]
   - M4-CT512M4SSD2
   - HL-DT-ST DVDRAM GT33N

-- Disk List ---------------------------------------------------------------
 (1) M4-CT512M4SSD2 : 512,1 GB [0/0/0, pd1] - mi

----------------------------------------------------------------------------
 (1) M4-CT512M4SSD2
----------------------------------------------------------------------------
           Model : M4-CT512M4SSD2
        Firmware : 000F
       Disk Size : 512,1 GB (8,4/137,4/512,1)
     Buffer Size : Unknown
     Queue Depth : 32
    # of Sectors : 1000215216
   Rotation Rate : ---- (SSD)
       Interface : Serial ATA
   Major Version : ACS-2
   Minor Version : ATA8-ACS version 6
   Transfer Mode : SATA/600
  Power On Hours : 5677 hours
  Power On Count : 944 count
Wear Level Count : 16
     Temparature : Unknown
   Health Status : Good (100 %)
        Features : S.M.A.R.T., APM, 48bit LBA, NCQ, TRIM
       APM Level : 00FEh [ON]
       AAM Level : ----

-- S.M.A.R.T. --------------------------------------------------------------
ID Cur Wor Thr RawValues(6) Attribute Name
01 100 100 _50 000000000002 Raw Read Error Rate
05 100 100 _10 000000000000 Reallocated Sectors Count
09 100 100 __1 00000000162D Power-On Hours
0C 100 100 __1 0000000003B0 Power Cycle Count
AA 100 100 _10 000000000000 Grown Failing Block Count
AB 100 100 __1 000000000000 Program Fail Count
AC 100 100 __1 000000000000 Erase Fail Count
AD 100 100 _10 000000000010 Wear Leveling Count
AE 100 100 __1 000000000010 Unexpected Power Loss Count
B5 100 100 __1 06CC04DA01F1 Non-4k Aligned Access
B7 100 100 __1 000000000000 SATA Interface Downshift
B8 100 100 _50 000000000000 Error Correction Count
BB 100 100 __1 00000000A8DC Reported Uncorrectable Errors
BC 100 100 __1 000000000001 Command Timeout
BD 100 100 __1 0000000000FB Factory Bad Block Count
C2 100 100 __0 000000000000 Enclosure Temperature
C3 100 100 __1 0000000031FE Cumulative Corrected ECC
C4 100 100 __1 000000000000 Reallocation Event Count
C5 100 100 __1 000000000000 Current Pending Sector Count
C6 100 100 __1 000000000000 Smart Off-line Scan Uncorrectable Error Count
C7 100 100 __1 000000000000 Ultra DMA CRC Error Rate
CA 100 100 __1 000000000000 Percentage Of The Rated Lifetime Used
CE 100 100 __1 000000000000 Write Error Rate

Can this be fixed?

Thanks in advance

[catalinus]

Unfortunately I am in no position to help here, but I have some questions (given the fact that I would like to place an M4 512GB in my own T420s):

- is that your only/main disk in your W520?

- how long ago you added to the system (5600 hours is still a little fuzzy)? any problems when you switched to it? any problems coming out of sleep?

- how have you set hibernation? (if it is still enabled I understand that you must also disable hibrid sleep).

My personal feeling is that your M4 is slowly dying and that you should get it replaced under warranty. I also wonder if a long SMART test would change things at all, and if an even more extreme step is needed there is always the option of forcing a full-rewrite (for instance boot from a Live Linux and do "badblocks -n" on the full SSD), and then a long SMART test again.

[bebbo]

Some answers: * This drive is the only and main disk in my laptop. * Installed July 2011 without any problems. * Hibernation is disabled - I only use suspend to RAM * Running for about 1 year without any problems. * Then backup failed due to read errors. Meanwhile I copied the disk file by file to and it took longer than one week, due to many read errors and hangs. So not all files are copied and not all are sane, but I have backups from the time before the problem started to cover this. I am pretty sure now the disk is dying. So I'll contact the support for RMA. thanks Bebbo