R/Evolution 2000 Series, Troubleshooting Manual

Page: 125 / 130

Appendix A Troubleshooting Using the CLI 125
Problems Scheduling Tasks
There are two parts to scheduling tasks: you must create the task and then create the
schedule to run the task.
Create the Task
There are three tasks you can create:
TakeSnapshot
,
ResetSnapshot
, and
VolumeCopy
.
Perform the operation directly to ensure the command syntax is correct. For
example, if you want to schedule taking a snapshot, first issue a command to take
the snapshot and verify that it runs. Then create a task that will take the snapshot
when scheduled.
Reset Snapshot
Before resetting a snapshot, you must unmount the snapshot if it is connected to a
host system, or you could lose data. There is no unmount command in the CLI. The
host system must perform this task.
Schedule the Task
If your task does not run at the times you specified, check the schedule
specifications. It is possible to create conflicting specifications.
■
Start time is the first time the task will run.
■
If you use the Between option, the starting date/time must be in the Between
range.
■
The year must be four digits, between 2006 and 2999.
■
Either the Repeat option or the Expires On option will end a schedule.
■
Using the Every option with a time value specifies that the task will recur at a
specified time.
■
Using the Every option with a date value specifies that the task will recur on the
specified days at either the start time or another specified time.
■
The Only On option constrains the period of recurrence.
■
Nth, must match the number. 1st, 2nd, 3rd, 4th, ..., 21st, 22nd, etc.