Checking The System Time - 3Com H3C IMC PROFESSIONAL PLATFORM Installation Manual

To ensure proper installation and operation of iMC, do not install iMC
with other network management products on the same server.

Checking the System Time

Before installing iMC, check that the system time, date and time zone
settings on the server are correct. If not, you need to adjust the
settings.
After iMC is started, you are not recommended to modify the system
time of the server; otherwise, the following or other unpredictable
problems may occur.
If you modify the system time to a future time that differs greatly
from the current time, the system takes a long time to process a
large amount of data exceeding the maximum time that the data
can be saved in the database, which affects the current data
sampling speed and results in delay. After the processing of such
data is complete, the delay is gradually recovered.
If you modify the system time to a past time, data with
overlapping time may occur, and the data processing of the
system will become abnormal. After the overlapping time is past,
data processing becomes normal again.
If you encounter other problems caused by system time modification,
for a primary server, you are recommended to restart all primary and
secondary servers; for a secondary server, you need to restart only
the server.
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