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SSD's have a finite write life, I talk about this a lot because I've hit it, a lot.

I've also hit a few specific firmware bugs in drives, my favorite was a 49 day uptime bug related to a 32 bit counter.

Its one of those awful ops problems :)

Just buy the SSDs from different vendors. Same batch drives usually have this problem of having the same mtbf.

That’s actually a great idea, seems obvious but I never would’ve thought of it.

I buy from the same vendor but will buy in different orders, I.e. I'll buy half the disks as soon as I know what we are doing and then buy the other half installed in the machines a month or two later,

or ill buy the machines with half the drives, build out the product them buy the other half of the array and slap it in a couopke days before go live.

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