HP Storage Essentials SRM 6.0 User Guide for Enterprise Edition and Standard Edition SRM Software (July 2008)

Discovering Switches, Storage Systems, NAS Devices, and Tape Libraries56

• 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 76.

• To determine provisioning support for HP StorageWorks Arrays, see Table 135 on page 536

and Table 136 on page 537.

• 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.

NOTE: The user name and password are the credentials of the Command View EVA administrator

Obtaining SNMP Traps using Command View EVA

You must configure Command View EVA so it can send SNMP traps from the EVA to HP Storage

Essentials. When the management server receives these SNMP traps, it converts them to WBEM