HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.2 administrator guide (5697-0 - Page 40

Synchronizing the local time with an external source The tsClockServer command accepts multiple server addresses in either IPv4, IPv6, or DNS name formats. When multiple NTP server addresses are passed, tsClockServer sets the first obtainable address as the active NTP server. The rest are stored as backup servers that can take over if the active NTP server fails. The principal or primary FCS switch synchronizes its time with the NTP server every 64 seconds. 1. Connect to the switch and log in using an account assigned to the admin role. 2. Enter the tsClockServer command: switch:admin> tsclockserver "" where ntp1 is the IP address or DNS name of the first NTP server, which the switch must be able to access. The second ntp2 is the second NTP server and is optional. The operand is optional; by default, this value is LOCL, which uses the local clock of the principal or primary switch as the clock server. switch:admin> tsclockserver LOCL switch:admin> tsclockserver "132.163.135.131" switch:admin> tsclockserver 132.163.135.131 The following example shows how to set up more than one NTP server using a DNS name: switch:admin> tsclockserver "10.32.170.1;10.32.170.2;ntp.localdomain.net" Updating Clock Server configuration...done. Updated with the NTP servers Changes to the clock server value on the principal or primary FCS switch are propagated to all switches in the fabric. Switch names Switches can be identified by IP address, Domain ID, World Wide Name (WWN), or by customized switch names that are unique and meaningful. Switch names can be from 1 to 30 characters long. The HP StorageWorks DC SAN Backbone Director and HP StorageWorks DC04 SAN Director Switch naming convention is 1 to 15 characters in length. All switch names must begin with a letter, and can contain letters, numbers, or the underscore character. It is not necessary to use quotation marks. Changing the switch name causes a domain address format RSCN (registered state change notification) to be entered and may be disruptive to the fabric. Customizing the switch name 1. Connect to the switch and log in using an account assigned to the admin role. 2. Enter the switchName command, using the following syntax: switchname "newname" where newname is the new name for the switch. 3. Record the new switch name for future reference. 4. Record the new switch name for the second domain for future reference. Chassis names HP recommends that you customize the chassis name for each platform. Some system logs identify devices by platform names; if you assign meaningful platform names, logs are more useful. All chassis names have a limit of 15 characters except for the HP StorageWorks 8/8, 8/24, 8/40, and 8/80 SAN Switches, which is 31. Chassis names must begin with a letter, and can contain letters, numbers, or the underscore character. 40