U2000 (Linux HA Product Version: V200R018C60) system time is incorrect, causing network monitoring confusion. In this case, we must modify the server time.
Modify by following the steps below:
Step 1. Log in to the server as the ossuser user.
Step 2. Open CLI. Run the following command to shut down the U2000:
$ cd /opt/oss/server/platform/bin
$ ./stopnms.sh
Step 3. Run the following command to shut down the database:
# su - dbuser
$ cd /opt/sybase/OCS*/bin
$ ./isql -SDBSVR -Usa
Enter the password of the database administrator as prompted.
In order to enhance the security of the database after the U2000 is installed, the sa user may be manually disabled and replaced with a customized administrator name, such as dbadmin.
1> shutdown SYB_BACKUP
2> go
1> shutdown
2> go
Step 4. After the database is shut down, start an NMS Maintenance Suite client.
Step 5. On the MSuite client, choose Deploy > Change Time Zone. The Modify System Time Zone dialog box is displayed.
Step 6. Set the time zone and system time according to the local time zone and standard time.

Perform desired operations according to on-site conditions:
• In New Time Zone, if the value of Time Zone is a local time zone and the value of Time is a correct local time, no modification is required.
• In New Time Zone, if the value of Time Zone is a local time zone and the value of Time is not a correct local time, correct Time in Current Time Zone. No other modification is required.
• In New Time Zone, if the value of Time Zone is not a local time zone, change it to a local time zone. The Time below the Time Zone will be changed automatically. If the automatically changed time is a correct local time, no other modification is required. Otherwise, adjust the value of Time in Current Time Zone until the value of Time in New Time Zone is a correct local time.
Step 7. Click OK.
Step 8. If the time zone is changed, you need to restart the OS to make the modifications take effect. Restart the OS according to the displayed prompt.
The U2000 system will start while the OS started.
The OS does not need to be restarted if only the time is changed. It needs to be restarted if the time zone is changed.
On Solaris or SUSE Linux, if the time zone is changed and after the OS is restarted, the time is adjusted according to the new time zone.
# sync;sync;sync;sync
# shutdown -r now
Step 9. If only the time is changed, start the U2000 system. For details, see Starting the U2000 System.
For more information, click the following link:
https://support.huawei.com/hedex/hdx.do?docid=EDOC1100078669&id=mstool_12&lang=en
Thanks!