Fujitsu PRIMEQUEST 500A Series Installation Manual page 322

CHAPTER 4 Work Required After Operating System Installation
4.11.3 Setting each partition as an NTP client
Each partition functions as an NTP client when the NTP server is set.
4.11.3.1 NTP client operation in a partition running Linux
In each partition, the NTP client is used as follows:
1
Start the Linux OS.
2
Adjust the time (step-wise adjustment is used only when the NTP client is used
for the first time) (ntpdate -b).
3
Start the ntp daemon to maintain the accuracy of the clock.
Remarks: In general, steps 2 and 3 are performed during IPL as specified in the
NTP setup on a partition
To set up NTP on a partition running Linux, perform the following steps:
1
Set an NTP server in the ntp configuration file (/etc/ntp.conf) as follows:
Figure 4.59 NTP server IP address setting example
Because no special options are required for communication between the
MMB and a partition, the above setting is all that you need to use ntpd. When
the MMB is used as an NTP server, specify a virtual IP address for the MMB
IP address.
For stable NTP operation, define at least three high-reliability NTP servers,
including the MMB, in the ntp configuration file.
Notes:
• The above description assumes that ntpd was already installed during
• The MMB in the PRIMEQUEST 520A/520/420 has no virtual IP address.
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startup script.
/etc/ntp.conf file
server MMB-IP-address
system installation.
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