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I've got 6x 4TB WD RED in a ZFS RAID10 (3x2 mirrors). I get about 500Mbytes/s read and write, on average. You start getting into 10GbE territory pretty easily w
by ioquatix 9y ago
I've got 6x 4TB WD RED in a ZFS RAID10 (3x2 mirrors). I get about 500Mbytes/s read and write, on average. You start getting into 10GbE territory pretty easily with even consumer drives and ZFS. With SSDs, you'd quickly need trunked 10GbE if you want to fully saturate your network - in addition to that consider the client requirements - e.g. each workstation with 10GbE or 1GbE. You'd have to have some pretty decent requirements to necessitate a ZFS RAID10 with [NVMe] SSDs.
- hvidgaard 9y agoThe benefit of SSD is not the raw sequential transfer. That is easy to max out with spinning platters. You want SSD for random access, it's significantly better at that.
- ioquatix 9y agoThe ARC (and L2ARC on an SSD) give you the best possible IOPs for read operations given the limits of the underlying hardware. Asynchronous write operations are cached to memory before being written to disk, often sequentially. For synchronous writes, you should use a ZIL on a mirrored SSD.