CVMVolDg agent

Description

CVMVolDg agent

The CVMVolDg agent brings online, takes offline, and monitors a VxVM shared volume in a disk group. The CVMVolDg agent executable is /opt/VRTSvcs/bin/CVMVolDg/CVMVolDg. The type definition is in the /etc/VRTSvcs/conf/config/CVMTypes.cf file.

Table: CVMVolDg agent entry points describes the CVMVolDg agent entry points.

Table: CVMVolDg agent entry points

Entry Points

Description

Online

Sets the activation mode of the shared disk group and brings volumes online.

Offline

Sets the activation mode of the shared disk group to “off.”

Monitor

Determines whether the disk group and volumes are online.

Clean

A null operation for a cluster file system mount.

attr_changed

Changes the activation mode of the shared disk groups specified.


Table: CVMVolDg agent attributes describes the CVMVolDg agent attributes.

Table: CVMVolDg agent attributes

Attributes

Type and Dimension

Definition

CVMDiskGroup (required)

string-scalar

Shared disk group name.

CVMVolume (required)

string-keylist

Shared Volume names. This list is used to check that the volumes are in the correct state before allowing the resource to come online, and that the volumes remain in an enabled state.

CVMActivation (required)

string-scalar

Activation mode for the disk group. Must be set to shared-write (sw). This is a localized attribute.

CVMVolumeIoTest(optional)

string-keylist

List of volumes that will be periodically polled to test availability. The polling is in the form of a 1k read every monitor cycle to a maximum of 10 of the volumes in the list


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