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Volume (EqualLogic) service

The Volume (EqualLogic) service monitors the status of a disk volume on a Model PS6100 Dell EqualLogic SAN running v6.0.2 firmware.

Service Type SNMP
Instances on a Device 1
Supported Systems/Applications Model PS6100 Dell EqualLogic SAN running v6.0.2 firmware.
Device Class Server - Generic, Server - Windows
Monitored By Windows agent
Scan Interval 5 minutes
Volume Name Enter the name of the volume to be monitored. For a list of available volumes, query the SAN with the .1.3.6.1.4.1.12740.5.1.7.1.1.4 SNMP OID.

 

Object Descriptors Numerical OID
$Description 1.3.6.1.4.1.12740.5.1.7.1.1.6
$Size 1.3.6.1.4.1.12740.5.1.7.1.1.8
$AdminStatus 1.3.6.1.4.1.12740.5.1.7.1.1.9
$AllocatedSpace 1.3.6.1.4.1.12740.5.1.7.7.1.13
$OperStatus 1.3.6.1.4.1.12740.5.1.7.7.1.8

 

Status Detail Description
Admin Status

Specifies whether the target volume has been configured as either online or offline by the administrator.

If a volume is offline, the ISCSI initiators cannot access it.

When lost blocks that belong to a particular volume are found, the Operational Status of the volume is set to not-available-due-to-lost-cached-blocks.

When the volume is in this state and if the user chooses to ignore the lost blocks by setting the volume status to Online, the subsystem automatically sets the Admin Status to online-lost-cached-blocks.

The online-lost-cached-blocks state of Admin Status indicates that the user acknowledged and acted upon the lost-blocks state of the volume.

On re-start, and if the subsystem finds a volume with $AdminStatus as online-lost-cached-blocks, it will configure the Operational Status to Online instead of not-available-due-to-lost-cached-blocks as the user has already acknowledged the lost-blocks state and has chosne to ignore them.

Admin Status Description

Mapped as:

  1. online
  2. offline
  3. online-lost-cached-blocks
  4. online-control
  5. offline-control
Operational Status Specifies the current operational status of the volume.
Operational Status Description

Mapped as:

  1. available
  2. not-available
  3. not-available-due-to-snap-reserve-met
  4. not-available-due-to-members-offline
  5. not-available-due-to-lost-cached-blocks
  6. not-available-due-to-thin-max-growth-met
  7. not-available-due-to-nospace-for-auto-grow
  8. not-available-due-to-missing-pages
Volume Size (MB) Specifies the total size of the monitored volume. Volume size is rounded to a multiple of 15MB. For thin provisioned volumes, this value represents the advertized size of the volume.
Used Space (%) Calculated as ((Allocated Space/Size)*100) and expressed as a percentage of the total size of the volume.