problem with some drives

[brizou]

Hello everybody,
this morning I received this email from my nas

Code:

Disk status:
Filesystem             Size    Used   Avail Capacity  Mounted on
/dev/ufs/FreeNASs2a    927M    379M    473M    44%    /
devfs                  1.0K    1.0K      0B   100%    /dev
/dev/md0               4.6M    1.9M    2.3M    44%    /etc
/dev/md1               824K    2.5K    756K     0%    /mnt
/dev/md2               149M    6.4M    131M     5%    /var
/dev/ufs/FreeNASs4      20M    1.3M     17M     7%    /data
nas                     12T    9.9T    2.1T    83%    /mnt/nas
telechargements        291G     77G    214G    26%    /mnt/telechargements

Last dump(s) done (Dump '>' file systems):

Checking status of zfs pools:
  pool: nas
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
	attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
	using 'zpool clear' or replace the device with 'zpool replace'.
   see: http://www.sun.com/msg/ZFS-8000-9P
 scrub: scrub in progress for 4h50m, 42.48% done, 6h32m to go
config:

	NAME        STATE     READ WRITE CKSUM
	nas         ONLINE       0     0     0
	  raidz1    ONLINE       0     0     0
	    ada0    ONLINE       0     0    37  200K repaired
	    ada1    ONLINE       0     0    35  444K repaired
	    ada2    ONLINE       0     0     0
	    ada3    ONLINE       0     0     0
	    ada4    ONLINE       0     0     0
	    ada5    ONLINE       0     0     0
	    ada6    ONLINE       0     0     0
	    ada7    ONLINE       0     0     0

errors: No known data errors

it's a raidz1 so do I have to change the disks right now ? It's not the best time for me... the 2To are really expensive nowadays.

The other problem is that my first disk seems not to support smart

Code:

Apr 20 09:48:50 freenas smartd[61237]: Device: /dev/ada1, WARNING: Using smartmontools or hdparm with this
Apr 20 09:48:50 freenas smartd[61237]: drive may result in data loss due to a firmware bug.
Apr 20 09:48:50 freenas smartd[61237]: ****** THIS DRIVE MAY OR MAY NOT BE AFFECTED! ******
Apr 20 09:48:50 freenas smartd[61237]: Buggy and fixed firmware report same version number!
Apr 20 09:48:50 freenas smartd[61237]: See the following web pages for details:
Apr 20 09:48:50 freenas smartd[61237]: http://www.samsung.com/global/business/hdd/faqView.do?b2b_bbs_msg_id=386
Apr 20 09:48:50 freenas smartd[61237]: http://sourceforge.net/apps/trac/smartmontools/wiki/SamsungF4EGBadBlocks

 

[brizou]

so i did a zpool clear then I began an other scrub, after 55min i have that

Code:

 zpool status -v
  pool: nas
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
	attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
	using 'zpool clear' or replace the device with 'zpool replace'.
   see: http://www.sun.com/msg/ZFS-8000-9P
 scrub: scrub in progress for 0h55m, 7.29% done, 11h40m to go
config:

	NAME        STATE     READ WRITE CKSUM
	nas         ONLINE       0     0     0
	  raidz1    ONLINE       0     0     0
	    ada0    ONLINE       0     0     7  132K repaired
	    ada1    ONLINE       0     0    29  508K repaired
	    ada2    ONLINE       0     0     0
	    ada3    ONLINE       0     0     0
	    ada4    ONLINE       0     0     0
	    ada5    ONLINE       0     0     0
	    ada6    ONLINE       0     0     0
	    ada7    ONLINE       0     0     0

errors: No known data errors

  pool: telechargements
 state: ONLINE
 scrub: none requested
config:

	NAME        STATE     READ WRITE CKSUM
	telechargements  ONLINE       0     0     0
	  ada9p2    ONLINE       0     0     0

errors: No known data errors

I think I'm going to change ada1 for now, I have one disk in stock. Should I change the other soon ?

 

[peterh]

change one, let the system resilver before changing the other drive. ( yes both seems broken)

 

[brizou]

I changed one (ada0), resilvering completed (14 hours for 8x2To raidz1, pretty fast I think but I had to do it via ssh, the gui option didn't work), I'm scrubing the pool now to see if I have to change ada1

I performed test via seatool on the disk, the tests passed, no smart problem under my linux computer neither -> I'm not going to be able to benefit of the warrantly.

 

[brizou]

so, the scrub just finished, keep in mind I have just changed ada0

Code:

zpool status -v
  pool: nas
 state: ONLINE
 scrub: scrub completed after 14h13m with 0 errors on Mon Apr 23 00:12:48 2012
config:

	NAME        STATE     READ WRITE CKSUM
	nas         ONLINE       0     0     0
	  raidz1    ONLINE       0     0     0
	    ada0    ONLINE       0     0     0
	    ada1    ONLINE       0     0     0
	    ada2    ONLINE       0     0     0
	    ada3    ONLINE       0     0     0
	    ada4    ONLINE       0     0     0
	    ada5    ONLINE       0     0     0
	    ada6    ONLINE       0     0     0
	    ada7    ONLINE       0     0     0

errors: No known data errors

weird...