FICON Administrator's Guide v6.4.0 (53-1001771-01, June 2010)

32 FICON Administrator’s Guide

53-1001771-01

Mode register bit settings

6. Enter the ficonCupSet fmsmode enable command.

7. If you are configuring FICON CUP on a director, enter the haFailover command to ensure that

FMS is enabled on both CPs.

8. Enter the ficonCupShow fmsmode command to verify if fmsmode is enabled.

Mode register bit settings

A mode register controls the behavior of the switch with respect to CUP itself, and with respect to

the behavior of other management interfaces. The mode register bits are described in Table 4.

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 following example displays all mode register bit settings for the switch. When the POSC bit=1,

the FICON host is allowed to set the switch offline. The bit is set to 1 by default. If you do not want

to allow the host to have permission to set the switch offline, the bit should be turned off. The state

of this bit cannot be changed by the FICON host, it can only be changed through the command line.

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

TABLE 4 FICON CUP mode register bits

ACP Alternate control prohibited. Because the Fabric OS CLI, Web Tools, and Data Center 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).

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 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).

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).

POSC Programmed offline state control. If the bit is set (=1) the command from the host will set the

switch offline. If the bit is off (=0) the command from the host will be rejected and the switch will

not go 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).