HP-MCCLUSTER

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Organization: Hewlett Packard Company, General Systems Division

Last Updated: 1996-06-24

Description: HP-MCCLUSTER module

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is HP-MCCLUSTER?

HP-MCCLUSTER is an HP private enterprise MIB providing general-purpose management objects for Multi Computer Clusters — groups of HP servers or compute nodes operating together as a single managed unit — with product-specific instrumentation left to separate companion MIBs. It defines general cluster attributes such as cluster membership, node identity, and cluster-wide status rather than deep hardware sensor data. Its monitoring value lies in tracking the software/operational status of the cluster as a whole: whether member nodes are present and healthy/active within the cluster, a first-line indicator of a node failure or split-brain condition before drilling into individual node hardware MIBs. It is explicitly designed to be extended by product-specific MIBs for detailed instrumentation of particular HP cluster products, so it acts as a base dependency for those. It is deployed in HP server cluster environments (e.g., HP-UX or ProLiant-based clusters) used for high availability or compute workloads. Network engineers evaluating or troubleshooting this functionality can download the HP-MCCLUSTER file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HP-MCCLUSTER. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

HP server cluster (multi-computer cluster)

Monitoring Examples

An operator monitoring an HP multi-computer cluster would poll the cluster membership/status objects to see the current list of active nodes and each node's cluster state; a node that drops out of the reported membership list without a corresponding graceful-leave event would indicate an unplanned node failure needing investigation.

What Can Be Monitored

cluster membership
node status within cluster
general cluster attributes/state

Imported Objects

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE
TimeTicks
enterprises

From SNMPv2-TC

DateAndTime
DisplayString

How to Use in IPNetwork Monitor

Example using hpmcClusterUpTime OID:

Select an HP server cluster as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type hpmcClusterUpTime into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The time (in hundredths of a second) since this instance of the cluster was last started. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a TimeTicks-type OID, Value bounds is the most useful condition here — trigger an alert if the value is unexpectedly low (e.g. under 10 minutes), since that indicates a recent, possibly unplanned, reboot or restart. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
hp	1.3.6.1.4.1.11
nm	1.3.6.1.4.1.11.2
system	1.3.6.1.4.1.11.2.3
general	1.3.6.1.4.1.11.2.3.1
hpmcCluster	1.3.6.1.4.1.11.2.3.1.6			This MIB module describes an HP private MIB for the management of Multi Computer Clusters. The MIB is intended to support general cluster attributes. Extensions for instrumentation of specific products should be done in separate product-specific MIBs.
hpmcClusterObjects	1.3.6.1.4.1.11.2.3.1.6.1
hpmcGenInfo	1.3.6.1.4.1.11.2.3.1.6.1.1
I32 hpmcNumClusters	1.3.6.1.4.1.11.2.3.1.6.1.1.1	Integer32	read-only	This variable is obsolete.
hpmcClusterTable	1.3.6.1.4.1.11.2.3.1.6.1.1.2		not-accessible	A table containing general information about the various clusters to which this node belongs.
hpmcClusterEntry	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1		not-accessible	An entry providing information about a cluster to which this node belongs.
I32 hpmcClusterIndex	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.1	Integer32	not-accessible	A unique value for each cluster to which this node belongs. This value is calculated by taking the last element of the corresponding hpmcClusterType object ID, multiplying it by 2^16 (shifting this value left 16 bits) and adding a 16 bit value (ranging from 0 to 2^16-1) for the cluster instance.
STR hpmcClusterName	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.2	DisplayString	read-only	The name given to this cluster, which will distinguish it from other clusters of the same type. No two clusters of the same type on a single node may have the same name.
OID hpmcClusterType	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.3	OBJECT IDENTIFIER	read-only	An unambiguous identifier of the cluster type. These values should be taken from the Object ID tree rooted below hpmcClusterTypes.
STR hpmcClusterDescr	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.4	DisplayString	read-only	A description of the cluster. By default this might simply be a textual description of the cluster type, such as `MC Service Guard'. However it may be desirable to allow the enduser to override this description through configuration to describe the actual purpose being served by the cluster. For example `HA Customer Database Cluster'.
STR hpmcClusterSWVersion	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.5	DisplayString	read-only	Versioning information describing the SW component(s), residing on this node, which comprise this cluster type.
INT hpmcClusterState	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.6	INTEGER	read-only	Describes this node's view of the cluster state. Note that insufficient information, such as separation from other active cluster elements, could result in this state information being out of date. In this case the unknown state should be used.
DAT hpmcClusterLastStateChange	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.7	DateAndTime	read-only	Indicates at what time the node entered the state described by hpmcClusterState.
DAT hpmcClusterLastReconfig	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.8	DateAndTime	read-only	Indicates when the configuration for this cluster was last changed.
STR hpmcClusterPrimaryNode	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.9	DisplayString	read-only	Indicates a node in the cluster which plays a `special' role, and may contain additional MIB information not distributed to other nodes in the cluster. A value of ' ' (single blank character) indicates an unknown or nonexistent primary node.
INT hpmcNodeStatus	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.10	INTEGER	read-only	The current state of the node relative to the cluster in this row.
INT hpmcNodeLastEvent	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.11	INTEGER	read-only	The last event on this node to alter hpmcNodeStatus. For cluster types that do not use events, the value is none (0).
DAT hpmcNodeLastEventTime	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.12	DateAndTime	read-only	Indicates at what time the node entered the status described by hpmcNodeStatus. A value of 0 indicates that the time is unknown or inapplicable (such as when the hpmcNodeLastEvent is none (0)).
TIK hpmcClusterUpTimeEx	1.3.6.1.4.1.11.2.3.1.6.1.1.2.1.13	TimeTicks	read-only	The time (in hundredths of a second) since this instance of the cluster was last started. Dynamic reconfiguration or partial availability of the cluster does not reset the cluster uptime. A value of 0 indicates that the time is unknown by this node.
hpmcMemberInfo	1.3.6.1.4.1.11.2.3.1.6.1.2
hpmcCNodeTable	1.3.6.1.4.1.11.2.3.1.6.1.2.1		not-accessible	A table containing an entry for each node which is a member of the cluster.
hpmcCNodeEntry	1.3.6.1.4.1.11.2.3.1.6.1.2.1.1		not-accessible	An entry providing information about the members of a given cluster. It is indexed by both the Cluster Index and nodeID of the member node.
I32 hpmcNodeID	1.3.6.1.4.1.11.2.3.1.6.1.2.1.1.1	Integer32	read-only	A unique ID given to this node from the context of a particular cluster. A node may have different values for each of the different clusters it belongs to.
STR hpmcNodeName	1.3.6.1.4.1.11.2.3.1.6.1.2.1.1.2	DisplayString	read-only	A name given to this node, typically its hostname, but may be a cluster specific name for identifying each member.
INT hpmcNodeRole	1.3.6.1.4.1.11.2.3.1.6.1.2.1.1.3	INTEGER	read-only	Indicates this node's role in the cluster. A cluster does not need to have a member fulfilling each role.
hpmcClusterTypes	1.3.6.1.4.1.11.2.3.1.6.2
hpmcServiceGuard	1.3.6.1.4.1.11.2.3.1.6.2.1			The authoritative identity of the ServiceGuard cluster type.
hpmcNFSDiskless	1.3.6.1.4.1.11.2.3.1.6.2.2			The authoritative identity of the NFS Diskless cluster type.
hpmcMCSE	1.3.6.1.4.1.11.2.3.1.6.2.3			The authoritative identity of the MCSE cluster type.
hpmcLockManager	1.3.6.1.4.1.11.2.3.1.6.2.4			The authoritative identity of the Lock Manager cluster type.
hpmcMSCS	1.3.6.1.4.1.11.2.3.1.6.2.5			The authoritative identity of the Microsoft Cluster Server cluster type.
hpmcTypeSpecific	1.3.6.1.4.1.11.2.3.1.6.3

RFC description

HP private MIB for management of multi-computer clusters and cluster attributes.

Start monitoring HP server clusters with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download HP-MCCLUSTER