ZeroFS doesn't exploit ZFS strengths with no native ZFS support, just an afterthought with NBD + SlateDB LSM
Good for small burst workloads where everything kept it in memory for LSM batch writes. Once compaction hits all bets off with performance and not sure about crash consistency since it is playing with fire.
ZFS special vdev + ZIL on ssd is much safer. No need for LSM. MayaNAS ZFS metadata at SSD speed and large blocks get throughput from high latency S3 at network speed.
Eikon|1 month ago
LSMs are “for small burst workloads kept in memory”? That’s just incorrect. “Once compaction hits all bets are off” suggests a misunderstanding of what compaction is for.
“Playing with fire,” “not sure about crash consistency,” “all bets are off”
Based on what exactly? ZeroFS has well defined durability semantics, guarantees which are much stronger than local block devices. If there’s a specific correctness issue, name it.
“ZFS special vdev + ZIL is much safer”
Safer how?