Configuring the DS-300B
33
Installing and Configuring the DS-300B
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.
For more information on using an NTP server, and so IPv6
considerations, see the Fabric OS Administrator’s Guide.
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.
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 will be 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.
switch:admin> tsclockserver
LOCL
switch:admin> tsclockserver "132.163.135.131"
switch:admin> tsclockserver
132.163.135.131
switch:admin>
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