HP XP LUN Configuration and Security Manager Software - Manual (Page 19)

LUN Configuration and Security Manager XP user guide for the XP10000/XP12000 19
Figure 6 shows an example of High Speed mode applied for one or two port clocks when the channel
adapter board has 8 ports. In case that the channel adapter board has 16 ports, you can also apply High
Speed mode in the same way though there are four port blocks.
Figure 6 Differences between high-speed and high-speed (2 port) modes
If High Speed mode is applied to the four ports in a port block, only two of the ports can be used for
connecting the host. These two ports can exclusively use channel processors and fibre optic processors
(FOPs) that would otherwise be reserved for the other two ports. Therefore, system performance improves.
By balancing workloads on processors, you can expect a greater improvement in system performance.
Before changing the configuration of a port that is being used, perform a backup operation. You cannot
switch between standard and high-speed while you are online to the hosts.
LUN Manager operations
This section includes procedures for performing the most common LUN Manager operations.
Starting LUN Manager
Click LUN Manager in the left pane. The LUN Manager pane appears.
The Command View XP or XP Remote Web Console main pane must be in Modify mode to use LUN
Manager. When the background color of the icon on the right of the pane is light yellow, Command View
XP or XP Remote Web Console is in Modify mode. When the background color is gray, Command View
XP or XP Remote Web Console is in View mode. If you click the grayed icon when the Unlocked icon is
displayed, the icon changes to light yellow and the mode changes to Modify. For more information about
changing modes, see the HP StorageWorks Command View XP User Guide for XP Disk Arrays or the
HP StorageWorks XP Remote Web Console User Guide for XP12000/XP10000.