Hi, I need some help figuring out what is going on. I have a 4TB Samsung SSD as a cache drive.

 

It seems to still have data on it, but I cannot access it. All shares that had this SSD as cache are also throwing input/output errors.

 

The SMART test shows a number of uncorrectable errors. Is there any way I can recover the uncorrupted data on there, or at least get the shares working again minus the corrupted data?

tower-diagnostics-20230813-0602.zip Samsung_SSD_870_EVO_4TB_S6BCNJ0R705745J-20230813-0556.txt

Device has been failing the extended SMART test for a long time:

 

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed: read failure       90%     12001         21048
# 2  Short offline       Completed: read failure       90%     11977         21048
# 3  Extended offline    Completed: read failure       90%     11977         21048
# 4  Extended offline    Completed: read failure       90%     11975         21048
# 5  Extended offline    Completed: read failure       90%     11951         21040
# 6  Extended offline    Completed: read failure       90%     11947         21040
# 7  Extended offline    Completed: read failure       90%     11947         21048
# 8  Extended offline    Completed: read failure       90%     11947         21048
# 9  Extended offline    Completed: read failure       90%     11947         21048
#10  Extended offline    Completed: read failure       90%     11947         21048
#11  Extended offline    Completed: read failure       90%      4236         99125488
#12  Extended offline    Completed: read failure       90%      4232         99125488

 

It should have been replaced long ago, you can clone it with ddrescue to try and recover as much data as possible

Thanks. Will run ddrescue and see what is still salvagable. I had noticed the SMART test failing but looking into it I couldn't tell what exactly was wrong, and since the data on there was of secondary importance (download location for movies, tdarr folder etc.) I thought I'd just leave it for now. Definitely learned my lesson.

 

Any idea how I can get the shares back that had this SSD as their cache? Do I just unmount the cache ssd? Almost all of the data of these shares are still on the array and having them accessible through their shares is vital to a bunch of my docker containers...

 

Thanks for your help!

19 hours ago, alphaorc said:

Do I just unmount the cache ssd?

Yes, that should do it.