Citrix Systems 5.6 User Manual
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weekdays or weekends as a group when specifying days. For the hour, you can choose any hour and you
can specify minutes in 15-minute intervals.
To set an optimization mode for all time periods
1. In the
Resources pane of XenCenter, select XenCenter >
your-resource-pool
.
2. In the
Properties pane, click the WLB tab.
3. On the
WLB tab, click Configure WLB.
4. In the left pane, click
Optimization Mode.
5. In the
Fixed section of the Optimization Mode page, select one of these optimization modes:
•
Maximize Performance. (Default.) Attempts to spread workload evenly across all physical hosts in a
resource pool. The goal is to minimize CPU, memory, and network pressure for all hosts.
•
Maximize Density. Attempts to fit as many virtual machines as possible onto a physical host. The goal
is to minimize the number of physical hosts that must be online.
To specify times when the optimization mode will change automatically
1. In the
Resources pane of XenCenter, select XenCenter >
your-resource-pool
.
2. In the
Properties pane, click the WLB tab.
3. On the
WLB tab, click Configure WLB.
4. In the left pane, click
Optimization Mode and select Scheduled.
5. Click
Add New.
6. In the
Change to box, select one of the following modes:
•
Maximize Performance. Attempts to spread workload evenly across all physical hosts in a resource
pool. The goal is to minimize CPU, memory, and network pressure for all hosts.
•
Maximize Density. Attempts to fit as many virtual machines as possible onto a physical host. The goal
is to minimize the number of physical hosts that must be online.
7. Select the day of the week and the time when you want Workload Balancing to begin operating in this
mode.
8. Create more scheduled mode changes (that is, "tasks") until you have the number you need. If you only
schedule one task, then Workload Balancing assumes that your starting mode is Maximize Performance.
9. (Optional.) If you do not want this schedule to go into effect, clear the
Enable Task check box.
10.Click
OK.
To edit or delete an automatic optimization interval
1. Follow steps 1 to 4 in the previous procedure.
2. Select a scheduled task and click one of the following:
2. Select a scheduled task and click one of the following:
•
Edit. Modify the schedule or optimization mode for a task as described in step 4 to 8 of the previous
procedure.
•
Delete. Deletes the task.
Optimizing and Managing Power Automatically
You can configure Workload Balancing to accept optimization recommendations automatically (Automation)
and turn servers on or off automatically (Power Management).