EMC Connectrix B Series Hardware Reference Manual page 31

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.
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.
1. If you are not already logged into the switch; do so now using the
default password, which is password.
2. Enter the tsClockServer command:
switch:admin> tsclockserver "<ntp1;ntp2>"
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 "<ntp1;ntp2>" is
optional; by default, this value is LOCL, which uses the local
clock of the principal or primary switch as the clock server.
Installing and Configuring the DS-5300B
Configuring the DS-5300B 31