NTP

[kholikt]

I need to implement NTP protocol for group of SAP servers. According to my SAP engineer, it is not recommended to use NTP for SAP as the oracle is very sensitve about the time. They are saying to use the -x option for the ntp server(slew).

Any comment?

[Warren_9]

hi,

from the xntpd man page.

"SLEW is not recommended by HP because it reduces accuracy and stability."

The ntp running on the oracle server for few years and haven't got any problem....

GOOD LUCK!!

[RAC_1]

What SAP engineer is saying that oracle is sensitive to time changes. Which is 100% correct. To keep all servers in sync, you should be putting ntp. What you really need to do is, shutdown oracle, sync the time of all servers. (ntpdate will help you in this regard)

Then start xntpd and then oracle. This way servers will take care of themselves and oracle will not have problem. You will need to configure /etc/ntp.conf and /etc/rc.config.d/netdaemons file.