IMPORTANT: The management server updates the Current Usage Summary table every 24 hours after the first update. Elements the management server has discovered before the update are not reflected in the Current Usage Summary table. The time for the update is determined when the management server was first started. For example, the first update of the Current Usage Summary table occurs six hours after the management server was first started. The following updates occur every 24 hours. If the management server was started for the first time at noon, the first update of the Current Usage Summary table would occur at 6 p.m. All following updates would always occur at 6 p.m.

MAPs are determined as described in the following table.

Table 16 Determining Managed Access Points

Element

Managed Access Point

 

 

Hosts

The managed access points (MAPs) are the number of Fibre Channel

 

ports with a minimum of one MAP. If a host has no Fibre Channel

 

ports, the software assumes one MAP. The software does count direct

 

attached storage, provided they are supported by the management

 

server.

 

 

Switches

All ports on a switch are counted as MAPs.

 

 

Storage systems

The sum of all front facing ports. Storage systems with FA ports the

 

software does not support, such as mainframe attached FICON, are

 

still counted as MAPs. However, the management server does not

 

count MAPs from storage systems it does not support. See the release

 

notes for information about supported storage systems.

 

 

Example 1:

Assume you have the following environment:

•Brocade (two switches of 12 ports each, one switch of 16 ports) - Total 40 ports

•McDATA (one switch of 64 ports) - Total 64 ports

•Windows 2000 and Solaris Hosts (10 hosts with two Fibre Channel connection each) - Total 20 ports

•EMC Subsystem (one subsystem with 16 Fibre Channel ports) - Total 16 ports

The software calculates 140 MAPs in this environment.

Example 2:

Assume you have the same configuration above, and you added several devices to your network that the management server does not support. There are still 140 MAPs in this environment since the management server does not count the ports from devices it does not support.

Example 3:

Storage Essentials 5.00.01 User Guide 149