Current_Pending_Sector / Offline_Uncorrectable

[sbec67]

Hi,
i'm pretty new with freeNAS :D
i have 2 brand new drives which i put into my newly build FreeNAS Server.
they are in a Mirror (I guess ;) )

[sbec@freenas] /# zpool status
pool: Media
state: ONLINE
scan: scrub repaired 0 in 1h38m with 0 errors on Thu Nov 21 21:20:52 2013
config:

NAME STATE READ WRITE CKSUM
Media ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
gptid/bda31b3a-47e1-11e3-ada7-002264333e78 ONLINE 0 0 0
gptid/be3001eb-47e1-11e3-ada7-002264333e78 ONLINE 0 0 0

errors: No known data errors

I have the Problem, that i see many Messages about Current_Pending_Sector / Offline_Uncorrectable

scmartctl did shows me:

197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 8
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 8

then i did

sysctl kern.geom.debugflags=0x10
dd bs=512 seek=1674782328 if=/dev/zero of=/dev/ada1 count=1
dd bs=512 seek=1674778512 if=/dev/zero of=/dev/ada0 count=1
sysctl kern.geom.debugflags=0x0

the count got reduced by one.... but now, i cant find out oher RBA's to Clean / reallocate

all i see with smartctl -l selftest /dev/ada0

# 1 Short offline Completed without error 00% 372 -
# 2 Extended offline Completed: read failure 80% 354 1674778512
# 3 Short offline Completed without error 00% 343 -
# 4 Extended offline Completed: read failure 80% 275 1674778512

can someone tell me how i find the LBA of 2nd Error ?

 

[DrKK]

Let me ask a stupid question.

Why are you not throwing these drives in the garbage can, and replacing them?

 

[sbec67]

:( .. because i only baught them 4 Day's ago... brand new.....

 

[sbec67]

there are no other Error, than those 7 Sectors.. i guess they happend, when i had a Power loss....

 

[cyberjock]

Power loss shouldn't cause those errors. Those errors are defects in the hard drive. I'd do an RMA right now if they were mine.

 

[DrKK]

Yeah, sir, I want to agree with what Cyberjock said.

The errors you have indicate a PHYSICAL problem with the surface media. The correct number of these should be *ZERO*. You should be able to get the drive replaced for free, if it is new, if you say there are offline uncorrectable errors in the SMART report.

 

[sbec67]

Well,
one got corrected... the count went down by 1....
smartctl -a say's:
LBA_of_first_error .....
How can i find 2nd / 3rd /4th.. ?

But i think of a RBA.. 1st have to find out how to do this ;):(

 

[sbec67]

what also seems pretty strange to me, is that both brand new Drives have exactly same amount of invalid Sectors....

 

[cyberjock]

I would still be replacing them, even if you can "fix" them. A disk that's brand new shouldn't have failing sectors already.

 

[sbec67]

I did a "replace" ... wiped the offline Disk and "smartctl -t long" it
now the Current_Pending_Sector / Offline_Uncorrectable R back to 0

I will try to LBA the Disk's.. as its not so easy here in Switzerland... we don't have a local Seagate branch.. i have to clarify with the Shop i bought them.

Thanks 4 you’re Help / Advice Regards

 

[sbec67]

since i wiped those Disks... i didn't have any Problem @ all....
Seems to fixed my Problem