HP StorageWorks 2000 Modular Smart Array Reference Guide (481599-003, August 2008)

228 HP StorageWorks 2000 Family Modular Smart Array reference guide • August 2008
An SNMP object identifier (OID) is a number assigned to devices in a network for
identification purposes. OID numbering is hierarchical. Using the IETF notation of
digits and dots resembling very long IP addresses, various registries such as ANSI
assign high-level numbers to vendors and organizations. They, in turn, append digits
to the number to identify individual devices or software processes.
MSA2000 Family systems use SNMPv2c, which improves on SNMPv1 features and
uses its community-based security scheme.
Standard MIB-II Behavior
MIB-II is implemented to support basic discovery and status.
In the system group, all objects can be read. The contact, name, and location objects
can be set.
The system object identifier (
sysObjectID) is based on the vendor name followed
by “.2.” and the identifier for the particular product model. For example, the object
identifier for MSA2000 Family storage systems is 1.3.6.1.4.1.11.2.51, where 51 is
assigned for hpMSA. System uptime is an offset from the first time this object is
read.
In the interfaces group, an internal PPP interface is documented, but it is not
reachable from external to the device.
The address translation (
at) and external gateway protocol (egp) groups are not
supported.
Enterprise Traps
Traps can be generated in response to events occurring in the storage system. These
events can be selected by severity and by individual event type. A maximum of
three SNMP trap destinations can be configured by IP address.
Enterprise event severities are informational, minor, major, and critical. There is a
different trap type for each of these severities. The trap format is represented by the
HP enterprise traps MIB,
msa2000traps.mib. Information included is the event
ID, the event code type, and a text description generated from the internal event.
Equivalent information can also be sent using email or popup alerts to users who are
logged in to SMU.
The text of the trap MIB is included at the end of this appendix.