Installation Manual

HP Storage Essentials SRM 6.0 Installation Guide 143
• 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.