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 Libraries22
4. A host containing a Host Bus Adapter (HBA). All Fibre Channel host bus adapters look for
available elements attached to the HBA. This information is gathered by CIM extensions and
sent to the management server.
NOTE: Since CIM extensions have not been installed yet, the management server will not
be able to obtain this data when you perform discovery for elements. For more information,
see ”Deploying and Managing CIM Extensions” on page 155 and ”Discovering
Applications, Backup Hosts and Hosts” on page 83.
Using Credentials
Element credentials are entered as global (Options > Protocol Settings > Global Settings) or system
protocol settings (Options > Protocol Settings > System Protocol Settings).
This section contains the following information:
• Using WBEM Settings, page 22
• Choosing Between System and Global Credentials, page 22
Using WBEM Settings
• For elements you want to discover and manage in HP Storage Essentials, you must enter each
element’s credentials as Web-Based Enterprise Management (WBEM) settings in the HP SIM
user interface regardless of the protocol used to discover the element.
• When you use HP SIM and SNMP to discover devices that will be managed by HP Storage
Essentials, provide the SNMP credentials in the WBEM settings section on the System Protocol
Settings page (Options > Protocol Settings > System Protocol Settings). Only the WBEM
credentials are passed from HP SIM to HP Storage Essentials. Any credential information entered
in the SNMP settings section on the System Protocol Settings page is not passed from HP SIM to
HP Storage Essentials.
Choosing Between System and Global Credentials
• If you are using non-standard ports for an element or the element is behind a firewall, you must
use system protocol settings to discover that element and provide the port that is used. If an
element is using the default port, you do not need to enter the port number.
• Make sure the credentials you enter are correct. When system credentials are not supplied, the
system tries global credentials (if available) for the element.
• Any passwords specified on the HP SIM Global Protocol Settings page are used during system
identification. Sensitive passwords, such as root or domain administrator passwords, should not
be specified here if there is a risk of sending these to untrustworthy systems.
• Using global credentials may increase the amount of time discovery takes. If you define three
global credentials, HP SIM and HP Storage Essentials will each attempt to access the element
three times, once for each credential. If there are 100 elements to discover and 3 global
credentials, there will be a total of 600 interrogations made. With system credentials, only the
defined credentials for an element are used.
• Be careful when using global protocol settings because they can cause problems when
discovering certain elements. If you want to use global protocol settings, use them selectively. For