Subscribed capacity metric in Unity Pools

Question

Unity displays a metric for subscribed capacity and a subscribed pool %. That would be a very useful metric, however snapshots are also counted in the capacity. With a simple setup of a replicated pool this leads immediate to oversubscription in the pool. My system: Pool capacity: 110TBCreated Unity filesystems: 65TB, of which 45TB is currently in useOnly filesystems created, no block luns or VMware vvols in place.Free space in the pool: 63TBAll filesystems are replicated (which automatically creates 2 snapshots per filesystem)Expected subscribed capacity: 65TB, 60%Reported subscribed capacity in the pool: 200TB, 185% .As you see the 200TB subscribed capacity is really misleading and will never be correct, especially when you replicate each 15 minutes ;-). And by the way also CloudIQ reports exactly the same... And also the total efficiency metric is useless for the same reason. See also attached screenshots from Unisphere and CloudIQ. Unisphere screenshot CloudIQ screenshot  Is there any way to exclude potential snapshot-subscription from the metrics? Or make them more realistic by specifying a percentage for what they will be counted (for example 2% per snapshot instead of 100% per snapshot)? Thanks for your ideas and thoughts on this!

DELL-Sam L · Answer

Hello jpveen, Here is a link to a KB that maybe of assistance. https://dell.to/2XG1GTE

Unity

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