SMART Reallocated Sector count + Wear Levelling on SSD Cache

[jademonkee]

HI all, 

I received my first SMART Warning from on one of my SSD cache drives this morning, specifically:

unRAID Cache disk SMART health [5]: 2017-11-01 02:58
Warning [PERCY] - reallocated sector ct is 1
Samsung_SSD_840_PRO_Series_S1ANNEAD520291N (sdc)

From what I understand, this particular error is nothing to be worried about until/unless it starts rising quickly.

Either way, I ran an extended test to see if there was anything else going on, or if the count would rise. Thankfully, it did not. 

However, when digging around the forums looking for further info, I saw someone mention the Wear Levelling Count (see below), so I took a look at mine, and noticed that it's at 087. 

Does anyone know what a good threshold is for this value to start considering replacement? 60? 50? 25? 

I've attached my SMART log for your reference.

Thanks for your help!

 

EDIT: one other thing: would it be wise to run the btrfs scrub option, to see if the reallocation count grows or disappears, or to confirm that there's no corruption?

 

 

Samsung_SSD_840_PRO_Series_S1ANNEAD520291N-20171101-0939.txt

Edited November 1, 2017 by jademonkee