HP StorageWorks 1606 Brocade Fabric OS Administrator's Guide v6.3.0 (53-100133 - Page 53

Date and time settings 1 Date and time settings Switches maintain the current date and time inside a battery-backed real-time clock (RTC) circuit that receives the date and time from the fabric's principal switch. Date and time are used for logging events. Switch operation does not depend on the date and time; a switch with an incorrect date and time value still functions properly. However, because the date and time are used for logging, error detection, and troubleshooting, you should set them correctly. In a Virtual Fabric there can be a maximum of eight logical switches per director or enterprise-class platform. Only the default switch in the chassis will update the hardware clock. When the date command is issued from a non-principal pre-Fabric OS v6.2.0 switch, it will be dropped by a Fabric OS v6.2.0 and later switch and the pre-Fabric OS v6.2.0 switch will not receive an error. Authorization access to set or change the date and time for a switch is role-based. For an understanding of role-based access, refer to "Role-Based Access Control (RBAC)" on page 70. Setting the date and time 1. Connect to the switch and log in using an account assigned to the admin role. 2. Enter the date command, using the following syntax: date "mmddHHMMyy" The values represent the following: • mm is the month; valid values are 01 through 12. • dd is the date; valid values are 01 through 31. • HH is the hour; valid values are 00 through 23. • MM is minutes; valid values are 00 through 59. • yy is the year, valid values are 00-37 and 70-99 (year values from 70-99 are interpreted as 1970-1999, year values from 00-37 are interpreted as 2000-2037). Example of showing and setting the date switch:admin> date Fri Sep 29 17:01:48 UTC 2007 Stealth200E:admin> date "0204101008" Mon Feb 4 10:10:00 UTC 2008 Time zone settings You can set the time zone for a switch by name. You can specify the setting using country and city or time zone parameters. Switch operation does not depend on a date and time setting. However, having an accurate time setting is needed for accurate logging and audit tracking. If the time zone is not set with new options, the switch retains the offset time zone settings. The tsTimeZone command includes an option to revert to the prior time zone format. For more information about the tsTimeZone command, see the Fabric OS Command Reference. When you set the time zone for a switch you can perform the following tasks: • Display all of the time zones supported in the firmware. • Set the time zone based on a country and city combination or based on a time zone ID such as PST. Fabric OS Administrator's Guide 11 53-1001336-01