IBM 2498B24 User Guide - Page 43

The time zone setting has the following characteristics: v You can view the time zone settings. However, only those with administrative permissions can set the time zones. v The tsTimeZone setting automatically adjusts for Daylight Savings Time. v Changing the time zone on a switch updates the local time zone setup and is reflected in local time calculations. v By default, all switches are in the GMT time zone (0,0). If all switches in a fabric are in one time zone, it is possible for you to keep the time zone setup at the default setting. v System services that have already started will reflect the time zone changes only after the next reboot. v Time zone settings persist across failover for high availability. The following procedure describes how to set the time zone for a switch. You must perform the procedure on all switches for which the time zone must be set. However, you only need to set the time zone once on each switch, because the value is written to nonvolatile memory. 1. If you are not already logged into the switch; do so now using the default password, which is password. 2. Enter the tsTimeZone command as follows: switch:admin> tstimezone [--interactive]/ [, timezone_fmt] Use timezone_fmt to set the time zone by Country/City or by time zone ID, such as PST. The following example shows how to display the current time zone setup and how to change the time zone to US/Central. switch:admin> tstimezone Time Zone : US/Pacific switch:admin> tstimezone US/Central switch:admin> tstimezone Time Zone : US/Central The following procedure describes how to set the current time zone using interactive mode to Pacific Standard Time. 1. Type the tsTimeZone command as follows: switch:admin> tstimezone --interactive 2. You are prompted to select a general location. Please identify a location so that time zone rules can be set correctly. 3. Enter the appropriate number or Ctrl-D to quit. 4. At the prompt, select a country location. 5. At the prompt, enter the appropriate number to specify the time zone region or Ctrl-D to quit. Synchronizing local time using NTP You can synchronize the local time of the principal or primary fabric configuration server (FCS) switch to a maximum of eight external network time protocol (NTP) servers. To keep the time in your SAN current, it is recommended that the principal or primary FCS switch has its time synchronized with at least one external NTP server. The other switches in the fabric will automatically take their time from the principal or primary FCS switch. Chapter 2. Installing and configuring the switch 19