Discovery Data Collection

IMPORTANT: Access Discovery Data Collection by selecting Options > Storage Essentials > Discovery > Run Discovery Data Collection. Do not use the HP SIM Options > Data Collection command; it is for a different HP SIM feature.

This section contains the following topics:

•About Discovery Data Collection, page 67

•Running Discovery Data Collection, page 68

•Stopping Discovery Data Collection, page 68

About Discovery Data Collection

Discovery Data Collection is required to obtain detailed information from discovered elements. Discovery Data Collection must be performed before you can do provisioning and/or obtain provisioning information, such as data about zone sets and LUN numbers.

Keep in mind the following:

•Running Discovery Data Collection takes time. You might want to perform this process when the network and the managed elements are not busy.

•Reports show data from the last successful Discovery Data Collection and report cache update. When a scheduled Discovery Data Collection finishes, the report cache refreshes automatically. If you run Discovery Data Collection manually, the report cache updates every 6 hours. For information about refreshing the report cache, see ”Refreshing a Report” on page 437.

•During Discovery Data Collection the data you see in the user interface is not updated until the data collection is finished.

•During Discovery Data Collection, the topology in System Manager is recalculated. While the topology is being recalculated, the loading of the user interface in Storage Essentials may be slow. See”Recalculating the Topology” on page 719for more information.

•You can use discovery groups to break up Discovery Data Collection. For example, instead of running Discovery Data Collection for all elements, you could specify only the elements in Discovery Group 1. For more information, see ”Using Discovery Groups” on page 76.

•When an element in a discovery group is updated, its dependent elements are also updated.

•You can quarantine elements to exclude them from Discovery Data Collection. For example, if you want to get information about all the elements in a discovery group except for one, you can quarantine that element. For more information, see ”Placing an Element in Quarantine” on page 80.

•If a problem occurs with a host or SMI-S element during Discovery Data Collection, the host or element is automatically quarantined. To remove the element from quarantine, see ”Removing an Element from Quarantine” on page 80.

•If you want to receive status reports about Discovery Data Collection, see ”Configuring E-mail Notification for Discovery Data Collection” on page 703 for information about how to configure this option.

HP Storage Essentials SRM 6.0 User Guide 67