Cache SSD dead?

[alphaorc]

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

[JorgeB]

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

[alphaorc]

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!

[JorgeB]

19 hours ago, alphaorc said:

Do I just unmount the cache ssd?

Yes, that should do it.