1. SNIA SML WG 1 Storage Library MIB Jeff Bain, HP Andrea Westerinen, SNIA

2. SNIA SML WG 2 Topics  Storage Media Libraries  How is the MIB designed? What is CIM and how is it mapped into SNMP?  Contents of the MIB  Advantages of this approach

3. SNIA SML WG 3 What are Storage Libraries?  Also called Autochangers, Libraries, Autoloaders, Jukeboxes  An encloser containing: Slots or magazines for holding media, and drives (DLT tape, Magneto-optical, DAT, etc.) for playing media Pickers/changers to grab and transport media, and “ports” to import/export media Power supplies, fans, displays, keypads, etc. LAN connectivity and agents to handle SNMP requests  Generally connected to one or more SCSI buses, or fibre channel Storage Area Networks (SANs)

4. SNIA SML WG 4 Library Management Today  Currently, library vendors define their own proprietary MIBs  Difficult for backup and management applications (and end-users) to get a unified view of their libraries

5. SNIA SML WG 5 How Is the MIB Designed?  Objects, properties, and associations to describe libraries are defined in CIM v2.2 Based on input from leading library vendors  These CIM library objects, properties, etc. are “mapped” into a MIB

6. SNIA SML WG 6 What Is CIM?  Common Information Model from the Distributed Management Task Force (DMTF)  Object-oriented model defining managed entities in the enterprise Inheritance and abstraction Classes, properties, methods, and associations Divided into logical and physical sections  Includes objects for Storage Media Libraries, drives, pickers/changers, label readers, etc.

7. SNIA SML WG 7 CIM to MIB Mapping

8. SNIA SML WG 8 Graphical Example

9. SNIA SML WG 9 Explanation of Example  Multiple instances described using a table Same approach (using a table) employed when describing array properties Same approach (using a table) employed when describing that the object participates in multiple “copies” of an association  Property named ScalarProperty is included in both FooObject and BarObject - Through abbreviations in the MIB field names, avoid name duplication

10. SNIA SML WG 10 “Objects” in CIM and the MIB

11. SNIA SML WG 11 “Other” CIM Info, In Progress  SCSI Information  Power Supply and Fan data  Fibre Channel information

12. SNIA SML WG 12 CIM and SNMP Cooperation

13. SNIA SML WG 13 Advantages of Approach  CIM is an industry-standard information model, adopted by SNIA and Sun's JIRO/FMA Eliminates confusion and abstracts protocols, interfaces and vendor-specific implementations Can present a complete picture of an “enterprise” Allows vendor differentiation by extending/subclassing the standard  Most library vendors have an SNMP agent  HTTP/XML support is also defined