HP StorageWorks 2/16V Brocade Fabric OS Command Reference Manual - Supporting - Page 740

2 tsClockServer tsClockServer Displays or sets the NTP Server address. Synopsis tsclockserver [ipaddr] Description Use this command to synchronize the local time of the principal or primary FCS switch to an external NTP server. The tsclockserver command accepts lists of NTP server addresses instead of just one address. The NTP server addresses can be passed in any of IPV4 or IPV6 address format or as a DNS name. When multiple NTP server addresses are passed, tsclockserver sets the first reachable address for the active NTP server. The rest will be stored as backup servers, which can take over when 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 the security feature is not enabled) or the primary FCS switch (when the security feature is enabled) connect to the NTP server and broadcast time service updates. All switches in the fabric maintain the current clock server IP address in flash memory. By default, this value is LOCL. Changes to the clock server IP address on the principal or primary FCS switch are propagated to all switches in the fabric. Use this command with no parameters to display the current clock server IP address being used. Specify the ipaddr operand to set the clock server IP address 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. The NTP server used must support a full NTP client. Fabric OS v3.1.0 and v2.6.1 have an SNTP client and hence will accept an SNTP or NTP server, but v4.1.0 has an NTP client, so for the proper functioning of a mixed fabric with external time synchronization it is necessary that an NTP server that supports a full NTP client be used. The ipaddr specified should be the IP address of an NTP server and should be accessible from the switch. 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 for more details. When secure mode is enabled, this command can be run on all switches to view the NTP server IP address. You can only modify the NTP server IP address on the primary FCS switch. Operands This command has the following operand: ipaddr Specify the IP address of the NTP server or LOCL to set to use the local clock of the Principal or Primary FCS switch as teh clock server. This operand is optional. By default, this value is LOCL. If no operand is specified, the current value displays. Examples To display the current clock server value (LOCL), set the value to an NTP server at the specified IP address and then verify that the new IP address was saved: switch:admin> tsclockserver LOCL switch:admin> tsclockserver "123.123.123.123" 708 Fabric OS Command Reference Manual 53-1000436-01