In order to maintain the operational reliability of a RAID system, certain actions can be repeated at regular intervals. These include, for example the consistency check of the logical drives, the Patrol Read of the disks or the recalibration of existing BBUs.
When the appropriate object (system, controller, disk, logical drive, BBU) or an existing task object has been selected, the object action Manage task (the dialog described below) can be started via the button pull-down menu Actions or by clicking the right mouse button on the object.
This action is used to create, modify or delete a task.
If a task does not exist for the selected object and the desired action, you can define and create a task with the following properties.
Select via Task the action that is to be regularly carried out.
For each respective task an optional Exception behavior can be specified. You can deselect the default setting to stop after 4 errors. Furthermore you can change the default behavior that after an error a new attempt to start the task is made after 2 minutes, 1 hour, and 8 hours beyond the regular setting. That way you can arrange the number of attempts skip on error and the next regular start time for the task.
Use Frequency to set the required period (from minute-by-minute to yearly). There are various settings depending on the Frequency selected which are used to define the action recurrences more exactly.
The Start time valid for the task, i.e. when the action is started for the very first time, has a default value now when creating the task. If the action cannot be started, because e.g. the action is already in use, the option now will not be offered. Additionally a time around 24 hours later than current time will be set as default time. Otherwise, if the problem happens when leaving the dialog a time around 8 hours later will be set automatically. A different starting time can be agreed upon by choosing later and with input of a valid date as well as a desired time. When the button Create is pressed, the required action is started either within the next minute or after expiration of a selected later start time.
Recurrence is used to select a value of 1 to 100 so that, depending on the choice of Frequency, the action can be repeated within a range of intervals (from 1 minute to 100 years).
A weekly Frequency can also have one or more Weekdays in order to define the starting point more exactly. If no weekday is selected, the current weekday is automatically set as used in the pre-setting. Furthermore the selected weekdays will be considered by the calculation of the first starting point if later is selected.
If a monthly Frequency is selected, a day in the month must also be defined on which the respective action is to be started.
The exact day of the month can be set via the selection on day. If a month does not have a corresponding day, e.g. 30th February, the action is started on the next possible day of the following month.
On the other hand, the selection on the is used to select the first to last week of the appropriate month plus a weekday to start the action.
Also the rule of the desired day of month will be considered if you decided to use a later starting point.
Annual Frequency allows the selection of an exact starting-day (see above) and also offers one or more months in order to define the starting point more exactly.
If an exact day in the month is defined, but this day is not in available certain months, then the corresponding months are automatically deselected and excluded as a selection option. February 29th is an exception. Such a selection is allowed as this day exists in certain years but not all of them. If necessary, the action is started on the next possible day of the following month, i.e. on March 1st. If no month is selected, the current month is automatically set as used in the pre-setting.
With the choice of later by the Start time the rule of the desired day of month and also the selected months will be considered by the calculation of the exact starting time.
When the button Create is pressed, the required action is started within the next minute or after another desired start time if later is selected. If thereby the Frequency is set at weekly, monthly or annually, the first start time is then in the current week or within a month or year, respectively.
When you quit the dialog by means of the Cancel button, no effect on any existing configuration will occur.
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If you want to create a task for Patrol Read you must set Patrol Read mode to manual beforehand. Otherwise the task for Patrol Read will be ignored. |
Via the selection of an existing task object or by selection of an action in the dialog, for which the selected object already has a task defined, you can modify the settings of the task.
The Start time is preset at later when a task is modified. If this setting is not changed, the next start time is calculated when the OK button is pressed based on the set and, if necessary, any modified values. If the Frequency is set at weekly, monthly or annually, the next start time is then in the current week or within a month or year, respectively. Only a subsequent date is based on the value set in Recurrence.
If the Start time is changed to now, the action is started within the next minute after the button OK was pressed. If the action cannot be started, because e.g. the action is already running, the option now will not be offered. Otherwise, if the problem happens when leaving the dialog a time around 8 hours later will be set automatically.
Likewise, the status and the internal task error counter is reset after the button OK has been pressed.
When you quit the dialog via the Cancel button, no changes will occur.
The task is deleted when the button Delete is pressed. This does not influence, interrupt nor terminate any current action triggered by the task.
If you quit the dialog by means of the Cancel button, no effect on any existing configuration will occur.