Synchronizing filer system time

Description

This procedure describes how to set the timed options to synchronize filer system time. You can do this any time, but if you have clusters, do it as soon as possible. After you complete this procedure, filer time is continually updated automatically.

Prerequisites

You must have available the name of at least one time server. You can get a list of NTP (Network Time Protocol) time servers, which SNTP can use, from http://www.eecis.udel.edu/~mills/ntp/servers.htm.

Steps

To set the timed options so that you can synchronize filer time, complete these steps.

Step Action
1 Turn on the timed daemon by entering the following command: 
options timed.enable on
2 If desired, turn on console logging of time changes initiated by the timed daemon by entering the following command: options timed.log on
3 Specify the maximum discrepancy allowed before time is not synchronized by entering the following command: 
options timed.max_skew nu
n is the number of units (specified by u). u is one of the following
  • s for seconds
  • m for minutes
  • h for hours The default is 30m, which stands for 30 minutes.
4 Specify a protocol by entering the following command: options timed.proto protocol protocol is one of the following:
  • rdate for the protocol used by the rdate command
  • ntp for SNTP The default is ntp.
5 Specify a synchronization schedule by entering the following command: options timed.sched schedule schedule is one of the following:
  • hourly to synchronize hourly
  • multihourly to synchronize every six hours
  • daily to synchronize every day at midnight
  • a number followed by m to specify an interval of minutes or h to specify an interval of hours The default is hourly.
6 Specify up to five time servers by entering the following command: options timed.servers servers servers is a list of the host names or IP addresses of up to five time servers, separated by commas.

Copyright © 1999, Network Appliance, Inc. All rights reserved.

Part No. 210-02334
File: routin25.htm
Last updated: 02/24/99 12:15:49