24 SPARC Enterprise Mx000 Servers Administration Guide • November 2007
TABLE 3-3 shows how the time is synchronized.
When domains are powered on, they synchronize their clocks to the NTP server.
If the domain and the Service Processor are using the same time source, one benefit
is that events logged in the Solaris OS and on the Service Processor can be correlated
based on their timestamp; if the domain and Service Processor use different NTP
servers, their times may drift, and correlating log files could become difficult. If you
connect a domain to an NTP server other than the one used by the Service Processor,
be sure both are high-rank NTP servers that provide the same degree of accuracy.
Every NTP server and every NTP client must have an ntp.conf file, in
/etc/inet/ntp.conf. The Service Processor has a default ntp.conf file. If you
are using NTP, you must create an ntp.conf file on each domain.
If you are using the Service Processor as the NTP server for the domains, create an
ntp.conf file on each domain similar to the following:
where ip_address is the IP address you configured for the Service Processor on the
DSCP network. To display the Service Processor’s IP address, use the showdscp -s
command.
TABLE 3-3 XSCF and Domain Time Synchronization
Entity Primary NTP Server Time Synchronization Method
XSCF No connection The XSCF time is the time in the initial system setting or the
time set with the setdate command.
External NTP server XSCF operates as an NTP client. The XSCF time is adjusted to
the time of the external NTP server.
Domain XSCF XSCF operates as the NTP server. The domain time is
adjusted to the time of the XSCF.
External NTP server The domain time is adjusted to the time of the external NTP
server.
CODE EXAMPLE 3-3 Sample ntp.conf File for a Domain using XSCF as NTP Server
server ip_address
slewalways yes
disable pll
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
