managing Data Domain : need for SNMP MIBs for "logical drive"

hi

have been using DATA-DOMAIN-MIB to build snmp based query. I am good with the typical use for power module, temperature sensor and physical drive ( status, performance and reliability) for the respective OIDs.

I am wondering if there is any MIBs supporting the "logical drives"? I am suspecting I may be able to use vtl related SNMP tables (.1.3.6.1.4.1.19746.1.11.3.1), or the filesystem related tables (.1.3.6.1.4.1.19746.1.3).  My understanding of "logical drive"  for EMC products is just like another other logical entity .e.g.  a physical drive can be logically divided up into many logical drives.

Or should I look for another MIBs other than DATA_DOMAIN-MIB? There seems to have another MIB called "EMC-MIB" that provides emcSymmetrix (.1.3.6.1.4.1.1139.1)

Attached are the two mibs that I have.

Thanks

Ben