Alex,
This is a HA-pair, and the other controller does not produce the message. And frankly I do not have any idea when this has started. The filer is about to be decommissioned, just waiting for the last projects to cool down.
I'll try the shutdown-remove power units-restart -sequence.
Heres a fresh snippet of the messages
Tue May 2 06:20:32 EEST [dmnetapp1-2:monitor.shutdown.cancel:warning]: Automatic shutdown sequence cancelled
Tue May 2 07:00:00 EEST [dmnetapp1-2:kern.uptime.filer:info]: 7:00am up 934 days, 18:54 993035249 NFS ops, 69966330 CIFS ops, 0 HTTP ops, 0 FCP ops, 0 iSCSI ops
Tue May 2 07:20:32 EEST [dmnetapp1-2:monitor.shutdown.cancel:warning]: Automatic shutdown sequence cancelled
Tue May 2 08:00:00 EEST [dmnetapp1-2:kern.uptime.filer:info]: 8:00am up 934 days, 19:54 993035249 NFS ops, 69966474 CIFS ops, 0 HTTP ops, 0 FCP ops, 0 iSCSI ops
Tue May 2 08:20:32 EEST [dmnetapp1-2:monitor.shutdown.cancel:warning]: Automatic shutdown sequence cancelled