OmsaStorageMonitor

With OmsaStorageMonitor you are able to monitor your Dell OpenManaged servers RAID array status. The following OIDs from the STORAGEMANAGEMENT-MIB are supported by this monitor:

virtualDiskRollUpStatus                     .1.3.6.1.4.1.674.10893.1.20.140.1.1.19
arrayDiskLogicalConnectionVirtualDiskNumber .1.3.6.1.4.1.674.10893.1.20.140.3.1.5
arrayDiskNexusID                            .1.3.6.1.4.1.674.10893.1.20.130.4.1.26
arrayDiskLogicalConnectionArrayDiskNumber   .1.3.6.1.4.1.674.10893.1.20.140.3.1.3
arrayDiskState                              .1.3.6.1.4.1.674.10893.1.20.130.4.1.4

To test the status of the disk array the virtualDiskRollUpStatus is used. If the result of the virtualDiskRollUpStatus is not 3 the monitors is marked as down.

Table 1. Possible result of virtual disk rollup status
Result	State description	Monitor state in Horizon
`1`	other	DOWN
`2`	unknown	DOWN
`3`	ok	UP
`4`	non-critical	DOWN
`5`	critical	DOWN
`6`	non-recoverable	DOWN

You’ll need to know the maximum number of possible logical disks you have in your environment. For example: If you have 3 RAID arrays, you need for each logical disk array a service poller.

To give more detailed information in case of an disk array error, the monitor tries to identify the problem using the other OIDs. This values are used to enrich the error reason in the service down event. The disk array state is resolved to a human readable value by the following status table.

Table 2. Possible array disk state errors
Value	Status
`1`	Ready
`2`	Failed
`3`	Online
`4`	Offline
`6`	Degraded
`7`	Recovering
`11`	Removed
`15`	Resynching
`24`	Rebuilding
`25`	noMedia
`26`	Formating
`28`	Running Diagnostics
`35`	Initializing

Monitor Facts

Class Name

org.opennms.netmgt.poller.monitors.OmsaStorageMonitor

Remote Enabled

false

Configuration and Use

Table 3. Monitor specific parameters for the OmsaStorageMonitor
Parameter	Description	Required	Default value
`virtualDiskNumber`	The disk index of your RAID array	optional	`1`
`port`	The TCP port OpenManage is listening	optional	from `snmp-config.xml`

This monitor implements the Common Configuration Parameters.

Examples

Some example configuration how to configure the monitor in the poller-configuration.xml. The RAID array monitor for your first array is configured with virtualDiskNumber = 1 and can look like this:

<service name="OMSA-Disk-Array-1" interval="300000" user-defined="false" status="on">
 <parameter key="retry" value="3"/>
 <parameter key="timeout" value="6000"/>
 <parameter key="virtualDiskNumber" value="1"/>
</service>

<monitor service="OMSA-Disk-Array-1" class-name="org.opennms.netmgt.poller.monitors.OmsaStorageMonitor"/>

If there is more than one RAID array to monitor you need an additional configuration. In this case virtualDiskNumber = 2.

<service name="OMSA-Disk-Array-2" interval="300000" user-defined="false" status="on">
 <parameter key="retry" value="3"/>
 <parameter key="timeout" value="6000"/>
 <parameter key="virtualDiskNumber" value="2"/>
</service>

<monitor service="OMSA-Disk-Array-2" class-name="org.opennms.netmgt.poller.monitors.OmsaStorageMonitor"/>