Fujitsu Siemens Computers SX series User Manual page 94

Time synchronization between SMC and partitions Functions of the System Management Console
The configuration of the SMC as an NTP server and of the partitions as NTP clients as
supplied is described below. If an external timer (with an official time reference, i.e.
stratum 1) is used, the configuration of the SMC must be changed, so that it operates in
addition to its task as an NTP server for the partitions as an NTP client of this external timer.
In this case, the stratum value of the SMC as a server for the partitions is improved to
value 2. In the BS2000 system of a partition, the system time is displayed as synchronized
with an external reference when the stratum value in Solaris/X2000 is better than 5 (the
default of the SMC). Accordingly, the /SHOW-SYSTEM-INFORMATION command in BS2000
outputs the value SERVER-CONN-EXT-REF in the SYNCHRONISATION field of the SYSTEM-
TIME-PARAMETERS section.
NTP server configuration (System Management Console)
During the installation of the System Management Console, the NTP configuration file was
created for the console with the command partition_setup and the option -n.
The command generates the following contents of the file
/opt/FJSVscsl/etc/ntp.conf:
server 127.127.1.0 prefer
fudge 127.127.1.0 stratum 5
enable auth monitor
driftfile /var/ntp/ntp.drift
statsdir /var/ntp/ntpstats/
filegen peerstats file peerstats type day enable
filegen loopstats file loopstats type day enable
filegen clockstats file clockstats type day enable
When using an external time server, the IP address of this server must be made known to
the SMC. The following entry is added to the start of the file:
server xxx.xxx.xxx.xxx prefer # IP-Adresse des NTP-Servers
The first line of the file must also be modified as follows:
server 127.127.1.0
Modifications should be entered only in the NTP configuration file on the SMC. No changes
should be made in the NTP configuration files on the partitions.
To activate modification in the NTP configuration file on the SMC the administrator (with root
authorization) SCS must be restarted (here the NTP daemons in the partitions must not be
restarted):
#/etc/init.d/FJSVscsl restart
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