Timed options
What the timed options do
The timed options control whether and how the filer uses the timed daemon to synchronize time with a time server. For additional information about time synchronization and using the timed options, see "Filer system time synchronization" and "Synchronizing filer system time."
The timed.enable option
Default
Off
Description
Determines whether a time daemon (timed) runs on the filer and synchronizes time with a time server.
The timed.log option
Default
Off
Description
Determines whether to log to the console time changes initiated by the timed daemon.
The timed.max_skew option
Default
30m
Description
Sets the maximum allowable discrepancy between filer time and server time. If there is a large discrepancy, it probably means that enough is wrong somewhere that the filer time should not be synchronized with the server time, no time synchronization takes place, and a message to that effect is sent to the console. The value is an integer followed by one of the following letters:
- s for seconds
- m for minutes
- h for hours
The default is 30 minutes.
The timed.proto option
Default
ntp
Description
Selects whether to use the protocol used by the rdate command or SNTP. The value can be one of the following:
- rdate for the protocol used by the rdate command
- ntp for SNTP
The timed.sched option
Default
hourly
Description
Schedules when to synchronize the time with a time server. The value can be 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
To avoid overburdening the time server, the filer randomly selects the exact time of the synchronization within a 20-minute window of the specified schedule.
The timed.servers option
Default
None
Description
Specifies up to five servers in order of contact priority. The value can be a list of the host names or IP addresses of up to five time servers, separated by commas. The filer goes down the list until it finds a server that responds, then uses the time from that server. It starts with the first server in the list each time. An example list of three time servers is as follows:
sundial, sundial.netapp.com, 10.152.8.12
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.
Copyright © 1999, Network Appliance, Inc. All rights
reserved.
Part No. 210-02334
File: options8.htm
Last updated: 04/26/99 08:12:03