HP XP LUN Configuration and Security Manager Software - Manual (Page 34)

34 LUN Manager for the XP10000/XP12000
6. Click Apply. A confirmation message appears.
7. Click OK. The settings are applied to the disk array.
Switching to standard or high-speed mode
Channel adapter boards can be set for standard or high-speed mode. If possible, apply high-speed mode
to channel adapters to improve the system performance. Be aware that you can only apply high-speed or
high-speed (2 port) mode to channel adapters that satisfy certain requirements.
1. Start LUN Manager, and display the LUN Manager pane ( Figure 7 ).
2. In the Package tree on the Port pane, right-click a channel adapter (CHA) package. A shortcut menu
appears. The current mode is preceded by a bullet.
3. Select the mode that you want. A confirmation message appears.
4. Click OK.
5. Click Apply. A confirmation message appears.
6. Click OK. The settings are applied to the disk array.
NOTE: Storage partition administrators cannot apply High Speed mode.
Operational restrictions
The success of some LUN Manager activities depends on the status of the security switch and whether I/O
is active or inactive to the port or LUN. The following tables describe those restrictions.
NOTE:
•
Do not remove LU paths (see ” Changing or viewing LU path settings ” on page 26) when the hosts are
performing I/O processing.
• Do not remove LUN security (see ” Applying and removing LUN security ” on page 31) when the hosts
are performing I/O processing.
Restrictions on LUN Manager operations
Table 11 LUN Manager operation restrictions
Activity Security switch OFF Security switch ON
Host group 0 Host group
01-7F
Host group 0 Host group
01-7F
Setting the LUN
Security Switch
ON
With active I/O
on port
Permitted with
confirmation
message
Invalid operation Invalid operation
With no active
I/O on port
Setting the LUN
Security Switch
OFF
With active I/O
on port
Invalid operation Permitted with confirmation
message
With no active
I/O on port
Adding a host
group
With active I/O
on port
Default host
group
Not permitted Default host
group
Permitted
With no active
I/O on port