OmsaStorageMonitor

The OmsaStorageMonitor lets you monitor your Dell OpenManaged servers RAID array status. This monitor supports the following OIDs from the STORAGEMANAGEMENT-MIB:

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

The virtualDiskRollUpStatus value checks the status of the disk array. If the result of the virtualDiskRollUpStatus is not 3, the monitor is marked as down.

Table 1. Possible result of virtual disk rollup status
Result State description Monitor state in Meridian

1

other

DOWN

2

unknown

DOWN

3

ok

UP

4

non-critical

DOWN

5

critical

DOWN

6

non-recoverable

DOWN

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

To give more detailed information in case of a disk array error, the monitor tries to identify the problem using the other OIDs. These values enrich the error reason in the service down event. The disk array state is resolved to a human-readable value as in 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

Formatting

28

Running Diagnostics

35

Initializing

Monitor facts

Class Name

org.opennms.netmgt.poller.monitors.OmsaStorageMonitor

Remote Enabled

false

Configuration and use

Table 3. Optional monitor-specific parameters for the OmsaStorageMonitor
Parameter Description Default

virtualDiskNumber

The disk index of your RAID array.

1

port

The TCP port where OpenManage listens.

From snmp-config.xml

This monitor implements the Common Configuration Parameters.

Examples

Sample configuration on how to configure the monitor in poller-configuration.xml. The RAID array monitor for your first array is configured with virtualDiskNumber = 1 and may 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"/>