Ntp Version Used To Communicate With A Newly Configured Ntp Server Defaults To V3; Rlm Configuration Is Not Saved If The Rlm's Ethernet Cable Is Not Connected; If Your System Uses Rtc Or Rdate As The Protocol For Time Synchronization; Obsolete Timed Options - IBM N Series Manual

NTP version used to communicate with a newly configured NTP server
defaults to v3
Starting with Data ONTAP 8.0.2, the Network Time Protocol (NTP) version to
be used for communicating with a newly configured NTP server defaults to
v3 instead of v4. This change is to address situations where certain time
servers support only NTP v3.
Releases prior to Data ONTAP 8.0 use Simple NTP v3 (SNTPv3) by default,
while Data ONTAP 8.0 and 8.0.1 use NTP v4 by default. For Data ONTAP
8.0.2 and later releases, the NTP daemon continues to use the highest
supported version (v4 in this case) to communicate with the time servers that
were configured prior to Data ONTAP 8.0.2.
To reset the time servers to use NTP v3, you can use the options
timed.servers command to reconfigure the list of servers.
RLM configuration is not saved if the RLM's Ethernet cable is not
connected
If the RLM's Ethernet cable is not connected when you use the rlm setup
command to configure the RLM, after connecting the cable you must rerun
rlm setup.

If your system uses rtc or rdate as the protocol for time synchronization

Starting with Data ONTAP 8.0, the Network Time Protocol (NTP) protocol is
the only supported protocol for time synchronization. The rtc and the rdate
protocols of the timed.proto option are obsolete and no longer take effect
after you upgrade to Data ONTAP 8.0 or later.
If your system does not already use NTP as the time-synchronization protocol,
it will not keep accurate time after you upgrade it to Data ONTAP 8.0 or later.
Problems can occur when the storage system clock is inaccurate.
If your system does not use NTP as the protocol for time synchronization,
immediately after upgrading to Data ONTAP 8.0 or later, you must set
timed.proto to ntp, set timed.servers to use time servers that support NTP,
and ensure that timed.enable is set to on.
Note: After you set timed.proto to ntp, the setting remains in effect even if
you revert back to a release prior to Data ONTAP 8.0.
For information about how to synchronize the system time, see the Data
ONTAP 8.0 7-Mode System Administration Guide.

Obsolete timed options

Starting with Data ONTAP 8.0, several timed options are obsolete although
they remain visible in the CLI and can be modified.
Known problems and limitations
89