HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, December 2009)

434 FICON fabrics
Displaying mode register bit settings
The mode register bits are described in Table 93.
The ficoncupshow modereg command displays the mode register bit settings for the switch. A display
of 0 indicates that the mode register bit is set to off; 1 indicates that the bit is set to on.
The command format is:
ficoncupshow modereg [bitname]
where bitname is one of the mode register bits described in Table 93.
To display all mode register bit settings for the switch:
switch:admin> ficoncupshow modereg
POSC UAM ASM DCAM ACP HCP
------------------------------
1 0 1 0 1 0
To display the mode register bit HCP for the switch:
switch:admin> ficoncupshow modereg HCP
HCP
0
Setting mode register bits
Use the ficoncupset modereg command to set the FICON CUP mode register bits for the local switch.
Consider the following when changing mode register bits:
• As required by the CUP protocol, the UAM bit cannot be changed using this command.
• All mode register bits except UAM are saved across power on/off cycles; the UAM bit is reset to 0
following a power-on.
• Mode register bits can be changed when the switch is offline or online. If the ACP or HCP bits are
changed when the switch is online, they will take effect any time between the completion of the current
command and the end of the CCW command chain (or the next alternate manager operation).
To set the mode register bits:
1. Connect to the switch and log in using an account assigned to the admin role.
2. Issue the following command:
ficoncupset modereg [bitname] 0 | 1
Table 93 FICON CUP mode register bits
POSC Programmed offline state control. When this bit is set on, the host is prevented from taking
the switch offline. The default setting is 1 (on).
UAM User alert mode. When this bit is set on, a warning is issued when an action is attempted
that will write CUP parameters on the switch. The default setting is 0 (off).
ASM Active=saved mode. When this bit is set on, all CUP configuration parameters are
persistent, meaning that they will be saved in nonvolatile storage in the initial program
load (IPL) file that is applied upon a cold reboot or a power cycle. The default setting is 1
(on).
DCAM Switch clock alert mode. When this bit is set on, a warning is issued when the date,
tsClockServer, or tsTimeZone commands are entered to set the time and
date on the switch. The default setting is 0 (off).
ACP Alternate control prohibited. Because the Fabric OS CLI, Web Tools, and Fabric Manager
are considered to be switch consoles, this bit has no effect on their operation. Attempts to
set CUP parameters through SNMP are denied when this bit is set on. The default setting
is 1 (on).
HCP Host control prohibited. When this bit is set on, the host is not allowed to set CUP
parameters. The default setting is 0 (off).