Am 06.04.22 um 23:49 schrieb Stefan Esser: > Am 06.04.22 um 18:34 schrieb [email protected]: > >>> The 870 QVO is specified for 370 full capacity >>> writes, i.e. 370 TB for the 1 TB model. That's still a few hundred >>> GB a day - but only if the write amplification stays in a reasonable >>> range ... >>> >>> *Well yes... 2880TB in our case....not bad.. isn't it?* > > I assume that 2880 TB is your total storage capacity? That's not too bad, in > fact. ;-)
I just noticed that this is not the extreme total size of a ZFS pool (should have noticed this while answering late at night ...) And no, a specified life-time of 2880 TB written is not much, it is at the absolute lower end of currently available SSDs at 360 TB per 1 TB of capacity. This is equivalent to 360 total capacity writes, but given the high amount of write amplification that can be assumed to occur in your use case, I'd heavily over-provision a system with such SSDs ... (or rather: strictly avoid them in a non-consumer setting).
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