September 4, 20178 yr I have had a Samsung 840PRO 256Gb since 2013 and while it still passes a SMART check, the Wear Levelling Count has left zero at last. I know these SSDs have an overprovision but how concerned should I be about the health of this SSD? In summary, we have 3240 hours, 14667 power cycles, 34 reallocated sectors, 150 Power Recoveries and 8879245966 LBAs written. Samsung_SSD_840_PRO_Series_S12RNEAD213826E-20170904-1458.txt
September 4, 20178 yr Wear leveling count is still at 99%, the 34 is part of the count, not reallocated sectors, SSD is almost like new.
September 4, 20178 yr Author That is good to know. I just checked the other 840PRO I bought at the same time and which has been used for Win10 gaming and it has the Wear levelling Count at 96% so that is the one which is showing more use. Five times the amount of data written too. I think I will retire the Windows one and keep the drive I showed above as an addition to the cache pool on the backup server so it can digest bigger backups at a time before filling its cache.
September 13, 20178 yr Retire it? You still have 96%. Assuming an approximate wear of 4% per 3000 hours, you still have 72000 hours, which is 8.2 years. Worst case scenario. I think perhaps you're a little premature in retiring it.
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