HW failed: lost data?

[Greg-Z]

Hi all.
Totally new here and I'm in dire staits. Also quite new to FreeNAS and ZFS.

Issue:
I set up an old tower I had to make my data avaliable on my LAN.
It was an ASUS P5-mobo with a dual core Intel and 2GB memory (setup not quite relevant as it is
stone cold dead). Bootdrive was/is a Kingston 2Gb usb-stick running version 8.3.0-x64.
I had a 750G ATA disk as zpool00, 2 raided 400G SATA-disks as zpool01 and a 400 G SATA as zpool02.
My mobo died a sudden and horrible death, reason unknown, and now I'm working at saving the data.
To my aid I have a Lenovo M58p booted on the same Kingston-stick and so far I only attached the 750G-drive as an external, through USB and can see the drive but apparently there are issues as status is unknown and error is reported for getting usage and so on.

I'm really lost here....any clues?

Thanks!!!
Greg

 

[cyberjock]

Post the output of zpool status.

 

[Greg-Z]

Output below:

Code:

zpool status -v                                             
  pool: zdisk02                                                             
state: ONLINE                                                               
status: One or more devices has experienced an error resulting in data       
        corruption.  Applications may be affected.                           
action: Restore the file in question if possible.  Otherwise restore the     
        entire pool from backup.                                             
  see: http://www.sun.com/msg/ZFS-8000-8A                                   
  scan: none requested                                                       
config:                                                                     
                                                                             
        NAME                                          STATE    READ WRITE CKSUM
        zdisk02                                      ONLINE      0    0    0
          gptid/a75761a8-3ce9-11e3-89b7-001d60ca671d  ONLINE      0    0    0
                                                                             
errors: Permanent errors have been detected in the following files:         
                                                                             
        zdisk02/plugins:<0x0>                                                  

 

[cyberjock]

Ok, so you have a single drive pool. You have no redundancy in this particular scenario. What has happened is something* has corrupted your pool.

So your best bet is to figure out if something is broken with your current hardware and if so, fix it.

Judging from what is likely wrong, your disk in that pool is probably bad. You should run a short and long test(long tests can take a few hours). If it fails either test your disk is bad.

Now for the asterisk. Your old system had WAY too little RAM. I'd also guess its not ECC RAM either. Either of those can cause logical damage to the pool leading to your problem. So if your disk passes its tests then its likely that one of those is the cause for your problems.

If you want to post the SMART output for the disk in that pool someone here can tell you if the disk looks good or bad. Considering that you didn't mention any kind of errors at the local box it sounds like it may not be a bad disk but just a system that doesn't meet the minimum requirements for FreeNAS.

Edit: Now would also be a time to seriously consider doing some backups. :)

 

[Greg-Z]

OK, sorry but either I have been unclear or you misread my post.

My setup was working for 3-4 months.
Then my hw died, probably mobo or CPU. So I would say my local box has errors.

zdisk02 is not the disk I have phys connected!
I have connected my old zdisk00 and it does not show.

How do I run a test? Short or long?

The sysetem booted now has 4G RAM (non ECC) but is only temporary to see if I can save data.

//Greg

 

[cyberjock]

Ah. Ok.

For SMART short and long tests read up on smartctl.

Post the output of zpool import.

 

[Greg-Z]

zpool import returns nothing.
The reason it detects errors on zdisk02 is that, this disk isn't even installed at this time.
Bios recognizes my 750G disk.
ran a short test and it looks sad.....

Code:

=== START OF READ SMART DATA SECTION ===                                       
SMART Self-test log structure revision number 1                               
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA
_of_first_error                                                               
# 1  Short offline      Completed: read failure      90%      8016        154
283014                                                                         
# 2  Short offline      Completed: read failure      90%      8016        154
283014                                                                         
# 3  Vendor (0x50)      Completed without error      00%        0        - 
                                                                              

This is one of the 4 disks I had in the original build.
Next step?

And btw; thanks for all the help!

 

[cyberjock]

That SMART test failure means replace that drive as its failing.

All your drives and pools are confusing me, but if your 750GB drive is also your zdisk02 and it is being detected in the BIOS but not FreeNAS then either the disk is failing or the disk controller your 750GB is connected to is not compatible with FreeNAS.

 

[Greg-Z]

Cyberjock, thanks for your patience.
I confused myself and have sorted things now.
Result: the raided zpool has at the least one working disk and I think the 750G-disk might be salvaged.
I'll get back within a few days!

THANKS!

 

[Greg-Z]

UPDATE: Disks seem to be fine. At least the ones that matter.
I have gone to an upgraded HW with 8G memory and will invest in 2 x 1TB disks and the plan is to go to FreeNAS version 9.x.

Thanks for your support!

 

[cyberjock]

Glad to hear it! Good luck :) FreeNAS 9 is a test. 9.2.0 will be out before the end of the year if we don't have any more setbacks. :)