IBM/Lenovo has now issued a new firmware for the V3700 again.
This updates fixes two APARS (Search for 7.6.0.3 is the release notes 
)
Release notes:
http://public.dhe.ibm.com/storage/san/sanvc/release_notes/760_releasenotes.html
Download link:
http://www-933.ibm.com/support/fixcentral/swg/doSelectFixes?options.selectedFixes=StorageDisk-2072-7.6.0.3&continue=1