HP StorageWorks 1606 Brocade Fabric OS Command Reference v6.3.0 (53-1001337-01 - Page 924

2 tsClockServer tsClockServer Synopsis Displays or sets the Network Time Protocol (NTP) Server addresses. tsclockserver [ipaddr [; ipaddr ...]] Description Use this command to synchronize the local time of the Principal or Primary FCS switch to one or more external NTP servers. This command accepts a list of NTP server addresses. The NTP server addresses can be passed in either IPV4 or IPV6 address format or as a DNS server name. When multiple NTP server addresses are specified, tsClockServer sets the first reachable address for the active NTP server. The remaining addresses are stored as backup servers, which can take over if the active NTP server fails. The time server daemon synchronizes fabric time by sending updates of the Principal or Primary FCS local switch time periodically to every switch in the fabric. The time server daemon runs on all switches in the fabric, but only the Principal switch (when an FCS policy is not enabled) or the Primary FCS switch (when an FCS policy is enabled) connect to the NTP server (if specified) and broadcasts time service updates. All switches in the fabric maintain the current clock server IP address in nonvolatile memory. By default, this value is LOCL., that is, the local clock of the Principal or the Primary FCS switch is the default clock server. Changes to the clock server IP addresses on the Principal or Primary FCS switch are propagated to all switches in the fabric. Use this command without parameters to display the active NTP server and the configured NTP server list. Specify the ipaddr operands to set the clock server IP addresses and enable fabric-wide clock synchronization with the specified clock server. A value of LOCL may be specified as operand to set the clock server back to default. Each ipaddr specified should be the IP address of an NTP server and should be accessible from the switch. The NTP server must support a full NTP client. When a clock server IP address other than LOCL is specified but is not used by the fabric, a warning is displayed and logged. When a clock server IP address other than LOCL is specified, the date command is restricted to display only. Refer to the date command help for details. Notes When an FCS policy is enabled, this command can be run on all switches to view the clock server value. However, you can only modify the clock server value from the Primary FCS switch. The execution of this command is subject to Virtual Fabric or Admin Domain restrictions that may be in place. Refer to chapter 1, "Using Fabric OS commands" and Appendix A, "Command Availability" for details. Operands This command has the following operand: ipaddr Specify the IP address of the NTP server or LOCL to use the local clock of the Principal or Primary FCS switch as the clock server. If more than one IP address is specified, separate the IP addresses by semicolons and enclose the list in double quotation marks. This operand is optional; if omitted, the current NTP server configuration is displayed. The default NTP server is LOCL. 894 Fabric OS Command Reference 53-1001337-01