Brocade Communications Systems 300 Reference Manual page 21

You can set the time zone for a switch using the tsTimeZone command. The tsTimeZone command
allows you to perform the following tasks:
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The time zone setting has the following characteristics:
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Local time synchronization
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.
All switches in the fabric maintain the current clock server value in non-volatile memory. By default,
this value is the local clock server <LOCL> of the principal or primary FCS switch. Changes to the
clock server value on the principal or primary FCS switch are propagated to all switches in the
fabric.
When a new switch enters the fabric, the time server daemon of the principal or primary FCS switch
sends out the addresses of all existing clock servers and the time to the new switch. If a switch with
v5.3.0 or later has entered the fabric it will be able to store the list and the active servers; pre-5.3.0
Fabric OS switches will ignore the new list parameter in the payload and will update only the active
server address.
If the active NTP server configured is IPv6, then distributing the same in the fabric will not be
possible to switches earlier than v5.3.0 because IPv6 is supported for Fabric OS version 5.3.0 and
later. The default value LOCL will be distributed to pre-5.3.0 switches.
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.
Setting the date
1. Log into the switch using the default password, which is password.
2. Enter the date command, using the following syntax:
Brocade 300 Hardware Reference Manual
53-1000862-02
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
You can view the time zone settings. However, only those with administrative permissions can
set the time zones.
The tsTimeZone setting automatically adjusts for Daylight Savings Time.
Changing the time zone on a switch updates the local time zone setup and is reflected in local
time calculations.
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.
System services that have already started will reflect the time zone changes only after the next
reboot.
Time zone settings persist across failover for high availability.
Brocade 300 configuration
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