|
|
Scheduling Page
For 9000-series controllers, the Scheduling page appears when you choose Management > Scheduling from the menu bar.
The Scheduling page is not available for 7000- and 8000- series controllers. If you want to schedule tasks for one of those controllers, use 3DM Version 1.x. You can also use the CLI in conjunction with the operating system schedulers. For detailed information, see the 3ware KnowledgeBase article 12290, on the website at http://www.3ware.com/kb/.
The Scheduling page lets you view and change the schedule for background tasks that affect all units on the controller specified in the drop-down list on the menu bar, including:
You select the type of task for which you want to set the schedule from the drop-down list at the top of the page.
You can also enable or disable use of the schedule for the selected background tasks by selecting either Follow Schedule or Ignore Schedule. When these schedules are set to be ignored, these tasks can be performed at any time, and are not restricted to the scheduled times.
Note: Scheduling of these tasks is only available on the 9000-series controllers.
For details about the different background tasks, see About Background Tasks.
About Task Schedules
Each type of task may be scheduled for up to 7 times per week. This limits active initializing, rebuilding, verifying, migrating, and testing of a unit to the times you specify, so that the task does not interfere with peak I/O times.
If all 7 schedule slots are filled, you must first remove one or more schedule times before you can add another.
You may set schedule times whether scheduling is set to be followed or ignored. This is useful if you want to temporarily disable the schedule.
If you remove all the schedule times for a particular background task, initializations, rebuilds, and migrations will run anytime, as they are needed. Verify will only run if started by the CLI, if the Verify Unit button is clicked, or if Auto-Verify is selected for that unit.
For information about adding and removing schedules, and setting schedules to be followed or ignored, see Scheduling Background Tasks.
About Self-tests
Unlike scheduling of rebuilds and verifies, scheduling of self-tests is always followed. To disable self-tests you either remove all schedule times, or uncheck the tests listed in the Tasks column.
Note: Only the checked tasks will be run during the scheduled times. If none of the tasks are checked, self-tests will never run, even if you have scheduled time slots set.Two self-tests can be scheduled:
Upgrade UDMA mode. This test checks the speed at which data transfer to drives is occurring, to see if the UDMA mode can be increased. (If you are already running at the fastest UDMA mode, then this self-test has no effect.)
The UDMA mode can become downgraded in the event that cable CRC errors are encountered, requiring multiple retries to read sectors. In severe cases, the UDMA mode may be downgraded from ATA 150 to ATA 133, to ATA 100, to 66, to 33.
This check is also done every time the system is booted.
Check SMART Thresholds. This test checks to see whether SMART thresholds have been exceeded.
The SMART thresholds indicate when a drive is likely to fail, based on the number of errors that have been recorded through SMART (Self-Monitoring, Analysis and Reporting Technology).
If any of the disk drives have detected a "threshold exceeded" condition, then an AEN is logged to the 3DM Alarms page. Moreover, if anything unusual is found during any self-test, it will be logged as an Alarm.
Related Topics
| AMCC www.3ware.com Direct:(408) 542-8800 Toll Free: (800) 840-6055 email: 3waresupport@amcc.com |
|
Copyright (c) 2004-2006, AMCC |