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Re:We saved millions in SSD costs by upgrading our filesystem by abrookewood on Tuesday November 09, 2021 @09:08PM (#29170304)
That's a great point. Potentially they could implement regular replacement of nodes to obtain the benefits of de-fragmented pools.
Re:We saved millions in SSD costs by upgrading our filesystem by throwdbaaway on Wednesday November 10, 2021 @03:35AM (#29172429)
Indeed. It looks like they went from ZFS 0.8.x (lz4) to 2.x (zstandard) in one go. That would be too yolo for my taste, but the guys were under time pressure due to the rather sudden performance degradation. Nodes replacement would probably buy some time, to allow the upgrade to be done in 2 phases.