Folks, I am new to UNRAID and just bought two WD 3TB WD30EFRX from Newegg, trying to start preclear on one and on two via Screen. sdb is running while sda sits on 0% and nothing happens. I am able to see both with GParted Live USB. I have to say I have tried twice and preclear just does not start on sda. What should I try? Should I try to pre-format the drives? Really lost at this point.  am within RMA period with NewEgg but not sure if this is drive or not. Attaching my log.

RedWD_sda_9309.txt

Basically you need to get a SMART report on the drive

It apparently is failing with lots of un-readable sectors.

Jan 19 15:29:37 Tower kernel: ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0\
Jan 19 15:29:37 Tower kernel: ata1.00: irq_stat 0x40000008\
Jan 19 15:29:37 Tower kernel: ata1.00: failed command: READ FPDMA QUEUED\
Jan 19 15:29:37 Tower kernel: ata1.00: cmd 60/00:08:00:3f:0b/01:00:00:00:00/40 tag 1 ncq 131072 in\
Jan 19 15:29:37 Tower kernel:          res 41/40:00:38:3f:0b/00:00:00:00:00/40 Emask 0x409 (media error) \
Jan 19 15:29:37 Tower kernel: ata1.00: status: \{ DRDY ERR \}\
Jan 19 15:29:37 Tower kernel: ata1.00: error: \{ UNC \}\
Jan 19 15:29:37 Tower kernel: ata1.00: configured for UDMA/133\
Jan 19 15:29:37 Tower kernel: ata1: EH complete\
Jan 19 15:29:42 Tower kernel: ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0\
Jan 19 15:29:42 Tower kernel: ata1.00: irq_stat 0x40000008\
Jan 19 15:29:42 Tower kernel: ata1.00: failed command: READ FPDMA QUEUED\
Jan 19 15:29:42 Tower kernel: ata1.00: cmd 60/00:00:00:3f:0b/01:00:00:00:00/40 tag 0 ncq 131072 in\
Jan 19 15:29:42 Tower kernel:          res 41/40:00:38:3f:0b/00:00:00:00:00/40 Emask 0x409 (media error) \
Jan 19 15:29:42 Tower kernel: ata1.00: status: \{ DRDY ERR \}\
Jan 19 15:29:42 Tower kernel: ata1.00: error: \{ UNC \}\
Jan 19 15:29:42 Tower kernel: ata1.00: configured for UDMA/133\
Jan 19 15:29:42 Tower kernel: ata1: EH complete\
Jan 19 15:29:47 Tower kernel: ata1.00: exception Emask 0x0 SAct 0x3 SErr 0x0 action 0x0\
Jan 19 15:29:47 Tower kernel: ata1.00: irq_stat 0x40000008\
Jan 19 15:29:47 Tower kernel: ata1.00: failed command: READ FPDMA QUEUED\
Jan 19 15:29:47 Tower kernel: ata1.00: cmd 60/00:08:00:3f:0b/01:00:00:00:00/40 tag 1 ncq 131072 in\
Jan 19 15:29:47 Tower kernel:          res 41/40:00:38:3f:0b/00:00:00:00:00/40 Emask 0x409 (media error) \

 

To get a SMART report type:

smartctl -a /dev/sda | tee /boot/smart_sda.txt

 

Then take a look at the "raw" value on the lines for sectors pending re-allocation and reallocated sectors. 

Odds are there are many, and the drive is a candidate for an RMA.

Zip the smart_sda.txt fail (located at the top directory on your flash drive) and attach it to your next post.

 

 

Thank you, I am not sure if it is properly working but I did create this report to see. It is attached.

smart_sda.txt

There are 114 sectors pending re-allocation already.   

197 Current_Pending_Sector  0x0032  200  200  000    Old_age  Always      -      114

My opinion, RMA it.

Thank you!