Last week I was going through ‘What’s New: VMware Virtual SAN 6.0‘, it seems like VSAN 6.0 is bigger, better and faster. The latest installment of VMware’s distributed storage platform provides a significant IOPS boost, up to twice the performance in hybrid mode. The new VirstoFS on-disk format is capable of high performance snapshots and clones. Time to put it to the test.
Disclaimer: this benchmark has been performed on a home lab setup, components used are not listed in the VSAN HCL. My goal is to confirm an overall IOPS and snapshot performance increase by comparing VSAN 5.5 with 6.0. I did so by running a synthetic IOmeter workload.
VMware has a really nice blogpost on more advanced VSAN performance testing utilizing IOmeter.
My lab consists of 3 Shuttle SZ87R6 nodes, connected by a Cisco SG300.
|Processor||Intel Core i5-4590S|
|NIC 1||1 GE (management)|
|NIC 2||1 GE (VSAN)|
|HDD 1||Samsung 840 Evo (120GB)|
|HDD 2||HGST Travelstar 7K1000 (1TB)|
- ESXi 5.5 Update 2 (build 2068190)
- ESXi 6.0 (build 2494585)