Configuring regions (optional and S3 only)

ILM rules can filter objects based on the regions where S3 buckets are created, allowing you to store objects from different regions in different storage locations. If you want to use an S3 bucket region as a filter in a rule, you must first create the regions that can be used by the buckets in your system.

Before you begin

About this task

When creating an S3 bucket, you can specify that the bucket be created in a specific region. Specifying a region allows the bucket to be geographically close to its users, which can help optimize latency, minimize costs, and address regulatory requirements.

When you create an ILM rule, you might want to use the region associated with an S3 bucket as an advanced filter. For example, you can design a rule that applies only to objects in S3 buckets created in the us-west-2 region. You can then specify that copies of those objects be placed on Storage Nodes at a data center site within that region to optimize latency.

When configuring regions, follow these guidelines:

Steps

  1. Select ILM > Regions.
    The Regions page appears, with the currently defined regions listed. Region 1 shows the default region, us-east-1, which cannot be modified or removed.


    Regions page

  2. To add a region:
    1. Click the insert icon insert icon to the right of the last entry.
    2. Enter the name of a region that you want to use when creating S3 buckets.
      You must use this exact region name as the LocationConstraint request element when you create the corresponding S3 bucket.
  3. To remove an unused region, click the delete icon delete icon.
    An error message appears if you attempt to remove a region that is currently used in the active policy or the proposed policy.


    Message if region can't be deleted

  4. When you are done making changes, click Save.
    You can now select these regions from the Location Constraint list on the Advanced Filtering page of the ILM rule wizard.