Monitoring the Status of a Remote Mirror

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The status of a Remote Mirror indicates whether or not the data on the primary logical drive is replicated identically (fully synchronized) on the secondary logical drive . A mirror status is independent of the component status of the underlying logical drives in the mirrored pair. The primary and secondary logical drive icons in the Logical View indicate both the state of the logical drive as well as the state of the Remote Mirror.

There are three states of a Remote Mirror: Synchronized , Synchronization in Progress, and Unsynchronized .

The mirror status is represented with different icons in the Logical View, depending on which storage subsystem you are monitoring and whether the storage subsystem contains the primary logical drive or the secondary logical drive.

Important: Local logical drives that are participating in a mirror relationship in either the primary or secondary role and engaged in a long running operation (such as a modification operation ) will display the long running operations icon for standard logical drives until the operation completes. An informational tooltip identifies the logical drive as either a primary or secondary logical drive.

In the example graphic on the left, below, the primary logical drive Accounting is engaged in a long running operation and is represented with the long running operations icon for standard logical drives. It's child node, the secondary logical drive Accounting2, is represented with the Optimal, Mirror Synchronized icon for secondary logical drives. In the example graphic on the right, below, the primary logical drive Accounting has completed the long running operation and is now represented with the Optimal, Mirror Synchronized icon for primary logical drives.

When the Storage Subsystem You Are Monitoring Contains the Primary Logical Drive

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If you have opened the Subsystem Management Window for the storage subsystem containing the primary logical drive, then the mirror status is indicated by the following icons in the Logical View.

Primary Logical Drive status

Remote Mirror status and representation in the Logical View

Optimal

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Degraded

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Failed

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Offline

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Missing

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

How Is The Remote Secondary Logical Drive Represented?

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If you are monitoring the storage subsystem that contains the primary logical drive, then the remote secondary logical drive is represented by the following icons in the Logical View:

Icon

Remote Secondary Logical Drive Representation

The fabric connection between the storage subsystems is operational and the remote storage subsystem and the remote logical drive are accessible.

Important: This icon represents the remote logical drive regardless of its true state (Optimal, Failed, Degraded, or Offline). To see the true state of the remote logical drive, open the Subsystem Management Window for the storage subsystem that contains the logical drive.

An unresponsive remote secondary logical drive. There are four different causes that are displayed in the mouseover tooltip:

  • the remote logical drive is not accessible
  • the remote storage subsystem is not accessible
  • the fabric connection between the storage subsystems is not accessible
  • unable to update the remote logical drive with a new WWN

The remote logical drive is being contacted.

The Storage Subsystem You Are Monitoring Contains the Secondary Logical Drive

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If you have opened the Subsystem Management Window for the storage subsystem containing the secondary logical drive, then the mirror status is indicated by the following icons in the Logical View.

Secondary Logical Drive status

Remote Mirror status and representation in the Logical View

Optimal

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Degraded

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Failed

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Offline

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Missing

Remote Mirror Status

Represented in the Logical View

Synchronized

Synchronization in Progress

Unsynchronized

Related Topics

Learn About Remote Mirroring

Learn About Using the Logical/Physical View

Learn About Missing Logical Drives