ECS 2.1 – Configure storage pools, VDCs, and replication groups

Table of Contents

Configure storage pools, VDCs, and replication groups

Learn how to use the portal to create, modify, and delete storage pools, VDCs, and replication groups for single or federated deployments, and how configure ConnectEMC for the object service.

Users must be assigned to the System Admin role to perform these procedures.

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Storage pools

Storage pools let you organize storage resources based on business requirements. For example, if you require physical separation of data, you can partition the storage into multiple different storage pools.

Use the Storage Pool Management page available from Manage > Storage Pools to view the details of existing storage pools, to create new storage pools, to modify existing storage pools, and to delete storage pools.

Storage Pool Management page

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Create storage pools

Use this procedure to assign nodes to storage pools. Storage pools must contain a minimum of four nodes. The first storage pool that is created is known as the system storage pool because it stores system metadata. The system storage pool cannot be deleted.

Procedure

  1. From the portal, select Manage > Storage Pools.
  2. Click New Storage Pool.
  3. Type the storage pool name. For example: StoragePool1.
  4. Select the nodes to add to the storage pool from the Available Nodes list.
    1. To select nodes one-by-one, click the + icon next for each node.
    2. To select all available nodes, click the + icon at the top of the Available Nodes list.
    3. To narrow the list of available nodes, type the node's public IP address or host name in the search field.
  5. When you have completed the node selection, click Save.
  6. Wait 10 minutes after the storage pool is in the Ready state before you perform other configuration tasks. This allows the storage pool time to initialize.
    If you do not wait long enough, you receive the following error message: Error 7000 (http: 500): An error occurred in the API Service. An error occurred in the API service.Cause: error insertVdcInfo. Virtual Data Center creation failure may occur when Data Services has not completed initialization.
    If you receive this error, wait a few more minutes before attempting any further configuration.
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Virtual data centers (VDCs)

VDCs are logical constructs. They are the top-level resource that represents the collection of ECS infrastructure to manage as a unit.

Use the Virtual Data Center Management page available from Manage > Virtual Data Centers to view VDC details, to create a new VDC, to modify existing VDCs, to delete VDCs and to federate multiple VDCs for a multi-site deployment. The following example shows the Manage Virtual Data Center page for a multi-site, federated deployment. It is configured with three sites. The VDCs are named vdc1, vdc2, and vdc3.

VDCManagement page

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Create a VDC for a single site

Use this procedure when you are creating a VDC for a single site deployment, or when you are creating the first VDC in a multi-site federation.

Before you begin

One or more storage pools are available and in the Ready state.

Procedure

  1. From the ECS Portal, select Manage > Virtual Data Center.
  2. Click New Virtual Data Center.
  3. Type a name. For example: VDC1.
    The name cannot have includes spaces or underscores.
  4. Click Get VDC Access Key.
    The VDC Access Key is used as a symmetric key for encrypting replication traffic between VDCs in a multi-site federation.
  5. In the Endpoints text box, enter the public IP addresses of each node in the VDC's storage pools. Supply them as a comma-separated list.
  6. Click Save.
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Add a VDC to a federation

Use this procedure when you are adding a VDC (for example, VDC2) to an existing VDC (for example, VDC1) to create a federation.

Before you begin

Obtain the ECS Portal credentials for the root user, or for a user with system administrator credentials, to log in to both sites.

Ensure you have the list of public IP addresses for the nodes from the site you are adding (VDC2).

Ensure the site you are adding (VDC2) has a valid license uploaded and has at least one storage pool in the Ready state.

Procedure

  1. Log in to the ECS Portal at the site you are adding (VDC2).
    The default credentials are root/ChangeMe.
  2. Select Manage > Virtual Data Center.
  3. Click Get VDC Access Key.
  4. Select the access key, and copy it using Ctrl-C to save it in the buffer.
  5. Log out of the ECS Portal at the site you are adding (VDC2).
  6. Log in to the ECS Portal of the first VDC (VDC1).
  7. Select Manage > Virtual Data Center.
  8. Click New Virtual Data Center.
  9. Enter the VDC's name. For example: VDC2.
  10. Click into the Key field and paste (CTRL-V) the Key you copied from the site you are adding ( VDC2) from Steps 3 and 4 above.
  11. Enter the public IP addresses of the site you are adding. Enter them as a comma-separated list.
  12. Click Save.
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Fail over a site/Delete a VDC

Use this procedure to delete a VDC. Deleting a VDC initiates site fail over when the VDC you are deleting is part of a multi-site federation.

If a disaster occurs, an entire VDC can become unrecoverable. ECS initially treats the unrecoverable VDC as a temporary site failure. If the failure is permanent, you must remove the VDC from the federation to initiate fail over processing which reconstructs and reprotects the objects stored on the failed VDC. The recovery tasks run as a background process. Review the recovery process by using the Monitor > Geo Replication > Failover Procesing.

Procedure

  1. Log in to one of the operational VDCs in the federation.
  2. Go to Manage > Replication Group.
  3. Click Edit for the replication group that contains the VDC to delete.
  4. Click Delete in the row that contains the VDC and storage pool to remove.
  5. Click Save.
  6. Go to Manage > VDC. The status for the permanently removed VDC changes to Permanently failed.
  7. Select Delete from the drop down in the row of the VDC to remove.
  8. Click Save.
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Replication groups

Replication groups are logical constructs that define where storage pool content is protected. Replication groups can be local or global. Local replication groups protect objects within the same VDC against disk or node failures. Global replication groups protect objects against disk, node, and site failures.

Use the Manage Replication Groups page to view replication group details, to create new replication groups, and to modify existing replication groups. You cannot delete replication groups in this release.

Manage Replication Groups page

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Create replication groups

Use this procedure to create replication groups.

To create global replication groups, choose storage pools from multiple VDCs.

Procedure

  1. From the ECS Portal, select Manage > Replication Group .
  2. Click New Replication Group.
  3. Type a name. For example: ReplicationGroup1.
  4. Click Add VDC.
  5. Select a Virtual Data Center and Storage Pool from the dropdown.
    Repeat this step to add the VDCs and Storage pools required for object protection.
  6. Click Save.
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Configure ConnectEMC

Use this procedure to configure ConnectEMC for the object service.

Procedure

  1. From the portal, click Settings > ConnectEMC.
  2. Select the transport type and whether the communications should encrypted.
  3. If the transport type is FTPS, use the table below for assistance in completing the configuration.
    Option Description
    Encryption Choose whether to encrypt the service data.
    Hostname Specify corpusfep3.emc.com.
    Email Server Specify the SMTP server is used in the environment.
    Email Addresses The email address to send ConnectEMC service notifications to.
  4. If the transport type is SMTP, use the table below for assistance in completing the configuration.
    Option Description
    Encryption Choose whether to encrypt the service data.
    Authentication Choose an authenticate type for authenticating to the SMTP server or NONE. If authentication is required, you must also supply the UserName and Password for authenticating to the SMTP server.
    SMTP Server Enter the SMTP server hostname or IP address.
    SMTP Port Enter the port for the SMTP server.
    From Address The email address to display as the From address for ConnectEMC service notifications.
    Email Addresses Additional email address to send ConnectEMC service notifications to.
  5. Click Save.
    For alerts to be sent out automatically, the system must be licensed, have ConnectEMC, storage pools, a VDC, and replication groups configured.
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