Creating and Managing Storage Rules

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Creating and Managing Storage Rules

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Storage rules basically define which of your data, log files etc., goes where and when. For instance you would want your last year's data to be moved to a more archival area than your current year's data.

 

The following functions are also to be noted:

when data enters the system it has to be assigned a storage rule, so the system knows on which storage to store it

the system attempts to match all storage rules by priority, the first rule that is matched is used

the default system rule can’t be deleted or edited and is of the lowest priority. This ensures that all data will be matched by at least 1 storage rule

Also, the topmost storage is tried first and when a match is encountered that match is used. If nothing matches, the default rule is used
 

 

To view the existing storage rules in the system

 

1.   Click the Storage rule tab. The web page displays the following rules.

storage_rule_pg

 

Note:   The default_storage_rule is a built-in-fallback rule that cannot be deleted and therefore it is disabled.

 

 

To add a storage rule

 

1.   Click add_filter_btn.  Additional fields and buttons are displayed as shown below.

 

storagerule_add_fields

 

 

2.   Enter a name for the storage rule in the box below Name.

 

3.   Click inside the box below Servers and select 0 or more servers. The rule will match if the incoming data is from a server that is in this list of servers. The rule will also match if the list of servers is empty.

 

 

      storage_ruler_servers

 

Note:   You can select one or more servers for your storage. To remove a server from the box, click the "X" symbol of the server.

 

4.   Click inside the box below Groups to select 0 or more groups. The rule will match if the incoming data is from a server in a group that is in this list of groups. The rule will also match if the list of groups is empty.

 

5.   Click inside the box below From/To to add a start date when you want the storage rule to be in effect. The rule will match if the incoming data time is after/before the from/to datetime. The rule will match all data if from/to datetime is not defined.

 

6.   Click inside the box below To to add an end date when you want the storage rule to end.

 

Note:   How to use the calendar box and controls to select a date have been explained in the topic Filtering Data using Filters.

 

7.   Select the storage that should be used to store data that matches this storage rule from the Storage drop-down list.

 

8.   Enter the retention policy for data that matches this rule period in the box under Retention.

 

Note:   There are three formats for entering the retention period. 1. auto - Where storage is filled to 100% and then the oldest files are deleted leaving only the newer ones. If this field is left empty then "auto" is automatically applied. 2. n days - Where files older than n days are deleted. 3. X % - Same as auto, but this storage rule is assigned % portion of the storage space.

 

9.   Click save_btn.

 

Note:   Also, the topmost storage is tried first and when a match is encountered that match is used. If nothing matches, the default rule is used

 

 

To modify a storage rule

 

1.   Double-click the field that needs to be modified and the field is enabled for editing as shown below. In the example below the Name field of a storage rule was double-clicked.

 

      storagerule_field_enabled

2.   Modify the field and click save_btn to save the changes. Click cancel_btn to quit without saving the changes.

 

 

 

To delete a storage rule

 

1.   From the list of storage rules displayed select the storage rule you wish to delete. The selected storage rule is highlighted.

 

storagerule_selected

 

2.   Click delete_btn.  The delete confirmation dialog is displayed.

 

      storagerule_delete_cnfdg      

 

3.   Click Yes.

 

Caution:   Exercise this function with care. The process cannot be undone. Data stored using the rule is reassigned to another existing storage rule.