I can now verify that this is working perfectly - and much faster than it was last week. An entire recovery (not test plan) of 3 VMs and 4 LUNs is only taking around 3 minutes, and then < 1 minute to "reprotect".
for the sake of having all th einformation in one place:
Here are the versionn I'm using:
IBM v7000 Version 6.4.1.2 (build 75.0.1211301000)
vCenter 5.1
SRM 5.1.0-941848 on Windows 2008 R2 64 bit (2vCPU 8GB RAM)
SRM advanced settings
I have set the Advanced Settings option:
storage.Commandtimeout to 1800 (def 300)
storageProvider.hostRescanRepeatCnt to 2 (def 1)
storageProvider.hostRescanTimeoutSec 600 (def 300)
SRA v2.1.0.121224
non-preconfigured environment
Pre-Configured Env. not set
Test MDisk Group ID set
SpaceEfficient Mode = true
I hope this is of value to someone