HP StorageWorks Fabric OS 5.X Procedures User Guide (AA-RVHWB-TE, September 2005)

114 Administering FICON fabrics
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 off; 1 indicates that the bit is set on.
The command format is:
ficoncupshow modereg [bitname]
where bitname is one of the mode register bits described in Table 19.
For example, to display all mode register bit settings for the switch:
For example, to display the mode register bit HCP for the switch:
Setting mode register bits
The ficoncupset modereg command sets 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 may 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).
Table 19 FICON CUP mode register bits
Bit Description
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 writes 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 are saved in nonvolatile storage in the 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, Advanced 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 1 (on).
switch:admin> ficoncupshow modereg
POSC UAM ASM DCAM ACP HCP
------------------------------
1 0 1 0 1 1
switch:admin> ficoncupshow modereg HCP
HCP
1