SRDF/S Lisence Usage Discrepancy!?

Question

We have a simple two array setup and have bi-directional SRDF/S replication in place. Recently I checked my SRDF licence usage and noticed that there is a fairly large difference in terms of used capacity between our two sites. At first I was completely confounded at how this could happen. Every R1 should have an idential R2, so how could the usage be different?

I've started to wonder if there are Device groups that exist only one side, and from the arrays perspective this is still using licese?

If anyone can shed light on where I should start to sort out this SRDF license mystery, I'm all ears. Thank you for the help.

R1 Site

R2 Site

McCranium · Answer

I also opened an SR for this issue, and we have sorted out what the issue is. If you encounter this issue have a look at the bound pool usage for RDF devices across the 2 arrays, the amount
allocated for these devices will probably differ due to zero block reclaim on R2
side. SRDF automatically does inflight zero block detection at the RA, so
you’ll see a difference accounting for the space.

Therefore you can see higher SRDF license utilization on the R1 side until a ZBR can be run against the volumes.

VMAX

SRDF/S Lisence Usage Discrepancy!?

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