HP A7533A HP StorageWorks Fabric OS 5.X Procedures User Guide (AA-RVHWB-TE, Se - Page 114
Table 19 FICON CUP mode register bits, Setting mode register bits, ficoncupshow modereg
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Table 19 FICON CUP mode register bits Bit POSC UAM ASM DCAM ACP HCP Description 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). 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). 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). 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). 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). Host control prohibited. When this bit is set on, the host is not allowed to set CUP parameters. The default setting is 1 (on). 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: switch:admin> ficoncupshow modereg POSC UAM ASM DCAM ACP HCP 1 0 1 0 1 1 For example, to display the mode register bit HCP for the switch: switch:admin> ficoncupshow modereg HCP HCP 1 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). 114 Administering FICON fabrics