What is the recommended DP-Pool to Thin-Image ratio for Snapshots, clones, etc in VMware VCenter 6.5?
For example, if we create a DP-Pool of 10Tb, is a 2Tb Thin-Image pool large enough?
The exact answer depends on change rate (i.e read/write %), longevity and # of snapshots/clones and actually the range of block I/O sizes
Conservatively, if you expect 10% change rate over the month on that 10TB pool and frequent snapshots will live/recycle after each month, then 3TB would be a conservative number to start with especially if app ecosystems with < 32K block sizes. Just monitor HTI usage (or if VMware environment, use vROPS management pack to monitor/alert on it)
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