Hello this is the continuation of the questions I've asked in preclear topic. Since it's a 6.0 Unraid that I have, it seems to be more efficient to put it there :

Hello Guys,

I bought a new hard drive on friday and installed it on my NAS (unraid 6.0.1). it's a WD 3T (WDC_WD30EZRX-00D8PB0_WD-WMC4N0JAPE9L)

So I used preclear script in order to clear it using the web plugin (from  gfjardim). After a long pre read part (starting from 4.4Mb/s, ending à ~75MB/s), my disk went to preclear but a lot more faster (~220 MB/s).

At the end of the process, the system was weird (no possibility to see the exit of the command) so I decided to reboot and redo (withour pre / post read)

And I have this error:

================================================================== 1.15
=                unRAID server Pre-Clear disk /dev/sde
=               cycle 1 of 1, partition start on sector 1
=
= Step 1 of 10 - Copying zeros to first 2048k bytes             DONE
= Step 2 of 10 - Copying zeros to remainder of disk to clear it DONE
= Step 3 of 10 - Disk is now cleared from MBR onward.           DONE
= Step 4 of 10 - Clearing MBR bytes for partition 2,3 & 4       DONE
= Step 5 of 10 - Clearing MBR code area                         DONE
= Step 6 of 10 - Setting MBR signature bytes                    DONE
= Step 7 of 10 - Setting partition 1 to precleared state        DONE
= Step 8 of 10 - Notifying kernel we changed the partitioning   DONE
= Step 9 of 10 - Creating the /dev/disk/by* entries             DONE
= Step 10 of 10 - Verifying if the MBR is cleared.              DONE
=
Elapsed Time:  3:34:17
========================================================================1.15
==
== SORRY: Disk /dev/sde MBR could NOT be precleared
==
== out4= 00000
== out5= 00000
============================================================================
0+0 records in
0+0 records out
0 bytes (0 B) copied, 0.000240382 s, 0.0 kB/s
0000000

 

I took a look into /var/log/messages and there's huge amount of this comments:

Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: 139 callbacks suppressed
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 0
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 01 5d 50 a3 00 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 5860532992
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 01 5d 50 a3 00 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 5860532992
Aug  1 13:54:19 nas kernel: buffer_io_error: 134 callbacks suppressed
Aug  1 13:54:19 nas kernel: Buffer I/O error on dev sde, logical block 732566624, async page read
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 01 5d 50 a3 a0 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 5860533152
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 01 5d 50 a3 a0 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 5860533152
Aug  1 13:54:19 nas kernel: Buffer I/O error on dev sde, logical block 732566644, async page read
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 0
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 00 00 00 00 00 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 0
Aug  1 13:54:19 nas kernel: Buffer I/O error on dev sde, logical block 0, async page read
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 00 00 00 00 08 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 8
Aug  1 13:54:19 nas kernel: Buffer I/O error on dev sde, logical block 1, async page read
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 01 5d 50 a3 a8 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 5860533160
Aug  1 13:54:19 nas kernel: Buffer I/O error on dev sde, logical block 732566645, async page read
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 13:54:19 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x88 88 00 00 00 00 01 5d 50 a3 a8 00 00 00 08 00 00
Aug  1 13:54:19 nas kernel: blk_update_request: I/O error, dev sde, sector 5860533160

 

and also some of these errors:

Aug  1 10:21:14 nas kernel: ata2.00: exception Emask 0x0 SAct 0x1fffffff SErr 0x0 action 0x6 frozen
Aug  1 10:21:14 nas kernel: ata2.00: failed command: WRITE FPDMA QUEUED
Aug  1 10:21:14 nas kernel: ata2.00: cmd 61/e8:00:b8:b8:09/07:00:00:00:00/40 tag 0 ncq 1036288 out
Aug  1 10:21:14 nas kernel:         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
Aug  1 10:21:14 nas kernel: ata2.00: status: { DRDY }
...
Aug  1 10:21:14 nas kernel: ata2.00: status: { DRDY }
Aug  1 10:21:14 nas kernel: ata2: hard resetting link
Aug  1 10:21:24 nas kernel: ata2: softreset failed (timeout)
Aug  1 10:21:24 nas kernel: ata2: hard resetting link
Aug  1 10:21:34 nas kernel: ata2: softreset failed (timeout)
Aug  1 10:21:34 nas kernel: ata2: hard resetting link
Aug  1 10:22:09 nas kernel: ata2: softreset failed (timeout)
Aug  1 10:22:09 nas kernel: ata2: limiting SATA link speed to 1.5 Gbps
Aug  1 10:22:09 nas kernel: ata2: hard resetting link
Aug  1 10:22:14 nas kernel: ata2: softreset failed (timeout)
Aug  1 10:22:14 nas kernel: ata2: reset failed, giving up
Aug  1 10:22:14 nas kernel: ata2.00: disabled
Aug  1 10:22:14 nas kernel: ata2.00: device reported invalid CHS sector 0
...
Aug  1 10:22:14 nas kernel: ata2: EH complete
Aug  1 10:22:14 nas kernel: sd 3:0:0:0: [sde] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x04 driverbyte=0x00
Aug  1 10:22:14 nas kernel: sd 3:0:0:0: [sde] tag#0 CDB: opcode=0x8a 8a 00 00 00 00 00 00 09 b0 d0 00 00 07 e8 00 00
Aug  1 10:22:14 nas kernel: blk_update_request: I/O error, dev sde, sector 635088
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79386, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79387, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79388, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79389, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79390, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79391, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79392, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79393, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79394, lost async page write
Aug  1 10:22:14 nas kernel: Buffer I/O error on dev sde, logical block 79395, lost async page write

 

 

 

Any clue of what happened? Do I have to RMA the disk?

 

I tried a new preclear but I stopped at the "start" of the pre read (running et less than 1MB/S...).

Attached smart status (which seems clear...) and the syslog (where we see the errors shown before, but no other ones...).

I tried with another HDD on the same SATA Card (but not port) and It worked smoothly.

 

To be honest, I think that I'll return the HDD to amazon. What do you think?

smart.txt

syslog-pre-clear-2015-08-02.txt

Normally, the syslog messages you show above indicate a drive that's fine, but lost connection somehow so it's non-responsive.  That's usually the fault of the system not the drive.

 

BUT then I checked the SMART report, and this drive has BOTTOMED OUT on the critical attribute Raw_Read_Error_Rate.  It has improved to normal numbers at the moment, but I don't trust it AT ALL!  Then I checked the syslog to confirm, and it shows serious errors on the drive, including an AMNF (Address Mark Not Found) and numerous others, and yes, you should RMA it ASAP!  I use drives others wouldn't, with all kinds of SMART problems, but I wouldn't use this drive, for anything!