Answering my own question here:  Unlike some manufacturers that provide model specific sysObjectIDs, EMC does not provide this information for the various types of Isilon nodes.  There are 3 types of Isilon storage nodes: 1. NL-Series - comprised of NL400 model only. 2. S-Series - comprised of either S200 and S210. 3. X-Series - comprised of either X200, X400 and X410.  There is 1 type of accelerator node: 1. A-Series - comprised of A100 model only.  The Isilon S200 node is the 2U storage option from the Isilon S-Series.The Isilon X200 node is the 2U storage option from the Isilon X-Series.The Isilon X400 node is the 4U storage option from the Isilon X-Series.The Isilon NL400 node is the 4U storage option from the Isilon NL-Series. In lieu of using the sysObjectID to identify the specific node model, we can utilize the following snmp query to identify the "chassisModel". The output below shows "chassisModel" name is "x200-2U-Single-12GB-2x1GE-2x10GE SFP+-12TB".  This would be classified as an "X-Series" Isilon node.  $ snmptable -v 2c -c XXXXXXX -O0b -Cfil ----- -Ln -m ISILON-MIB 10.160.54.102 chassisTable SNMP table: ISILON-MIB::chassisTable index-----chassisNumber-----chassisConfigNumber-----chassisSerialNumber-----chassisModel-----chassisUnitIDLEDOn  1-----1-----400-0034-03-----SX200XXXXXXXX-----X200-2U-Single-12GB-2x1GE-2x10GE SFP+-12TB-----na 
Cisco provides specific (OIDs) for all their hardware platforms.  For example, Wireless LAN Controllers (WLCs) via the CISCO-PRODUCTS-MIB:  I cannot find any model specific sysObjectIDs in the ISILON-MIB.  Can anyone confirm if EMC provides model specific OIDs for the various types of Isilon nodes?  TIA,  Amir
Does EMC Provide Isilon Node Model Specific SNMP sysObjectIDs ?