•The MSA SMI-S provider updates its cache every four minutes. If the array is managed by an application other than HP Storage Essentials, changes to the array configuration might not be reflected by a Discovery Data Collection task that ran before the cache update.

Discovery Information for an MSA

To discover an MSA, enter the following information in HP SIM:

•IP address of the server running the MSA SMI-S provider

•User name for accessing the MSA SMI-S provider

•Password for accessing the MSA SMI-S provider

Discovering HP StorageWorks EVA Arrays

The management server uses the built-in EVA provider. Before discovering EVA arrays, note the following:

•HP StorageWorks Command View EVA must be installed on a server before you can discover an HP EVA storage system.

•If you have both active and standby Command View EVA proxy machines, you can discover both the proxy machine that is actively managing the array, and the proxy machine that is not actively managing the array. If you discover only the proxy machine that is not actively managing the array, then only top level array information is collected.

If both proxy machines are discovered, keep them in the same discovery group. They can be moved to other discovery groups, but they must be moved together to the same group at the same time. When discovering the proxy machines separately, the machine that has already been discovered must be in the Default discovery group. For more information about discovery groups, see ”Using Discovery Groups” on page 162.

•EVA arrays can only be provisioned if they are actively managed by the Command View server that they are discovered through.

•When an EVA is discovered by the built-in EVA provider, a cache is created and populated with the current array configuration. Each subsequent cache refresh will start 30 minutes after completion of the previous cache refresh. The time the cache refresh takes depends on factors such as the EVA configuration, model, and SAN traffic.

When you perform a provisioning operation (creating, deleting, or modifying a pool or volume), the cache information about provisioning is immediately updated. If you provision an EVA using Command View EVA or a different management station, the cached information about the EVA will not be accurate until the cache is refreshed.

Discovery Information for an EVA

To discover an EVA, enter the following information in HP SIM:

•IP address of the server running Command View EVA.

•User name for accessing the Command View server.

•Password for accessing the Command View server.

HP Storage Essentials SRM 6.0 Installation Guide 143