Cronjobs in OneFS 7.1 and later

Community,

I was just told that there is a command in OneFS that replaces the regular LINUX/UNIX command crontab.  I wanted to know what that command was?  I am having a hard time finding the right wording to locate it in the admin command-line guide.  I tried using regular crontab -e in OneFS 7.2.1.2 and I keep getting this error:

crontab: no crontab for root - using an empty one

crontab: MD5: Inappropriate ioctl for device

So evidently the system doesn't like this command.  Please help.

Thank you,