Multiple Device Manager overview About the mdm Information Center MDM tasks

Multiple Device Manager (MDM) is a storage management software product that provides a single point of control across multiple supported storage devices on a storage area network (SAN). MDM services are provided by components that manage data storage. These components include Device Manager, Replication Manager, and Performance Manager.

MDM provides basic SAN management functions like logical unit (LUN) discovery, allocation, and zoning as well as interoperability with other managers. It also provides basic device configuration functions like LUN creation and allocation for single and multiple devices. MDM provides both an interactive, graphical interface and a full-feature command-line interface (CLI). The CLI provides support for scripting and automation. MDM contains an IBM WebSphere(R) Application Server, and uses an IBM DB2(R) database for persistent data storage.

Storage devices that MDM supports

The following are the storage devices that are supported by MDM:

Device Manager

Device Manager has a dual role as a component of MDM and as part of the infrastructure of IBM Director. Device Manager provides the following services:

You can perform the following tasks with Device Manager:

Replication Manager

Replication Manager provides a graphical interface that you can use to define copy tasks between source and target logical volumes, which are also referred to as managed disks (MDisks). With Replication Manager, you can also create, maintain, and use volume (MDisk) groups. You can use the interface panels to perform the following tasks:

The interface panels enable you to perform paths tasks and scheduled replication tasks.

Performance Manager

Performance Manager provides a graphical interface that you can use to define a task for collecting performance data from a supported storage device.

Performance data-collection tasks are saved as noninteractive tasks and displayed in the IBM Director Task pane under the Performance Data Collection task. You can view, change, and delete a performance data-collection task.

Once a performance data-collection task has been saved, you can create a job using the IBM Director Scheduler task. You can view, change, and delete jobs containing performance data-collection tasks from the Scheduler task. Performance data-collection tasks must be defined and contained in a scheduled job before you can define performance gauges and thresholds.

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