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by rayvd 2328 days ago
I think ZFS was just ahead. We considered btrfs many years ago to serve up VM's for ESX via NFS, but it just wasn't as performant unless you ran in async mode which jeopardized data integrity. ZFS let you introduce SSD-based ZIL and L2ARC caching which made performance totally fine in sync mode.

We're mostly NetApp AFF these days, but early on had close to a petabyte of ZFS-based storage power VM's on SuperMicro or Dell gear. Definitely was higher touch than NetApp but far less expensive.