ViPR 2.1 - ViPR Support for Block Volume Expand

Table of Contents

Expand Block Volume Overview

Learn the requirements and limitations of the ViPR Expand Block Volume service.

To increase the storage capacity of any volume in ViPR, run one of the following ViPR services:

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Expand block volume services and requirements

ViPR can expand any volume you provision (or ingest) using these services:

  • Block Storage Services > Create Block Volume.
  • Block Storage Services > Create Block Volume for a Host.
  • Block Storage Service > Ingest Unmanaged Volumes.

You can expand a VPLEX virtual volume.

You can expand a VPLEX virtual volume that has RecoverPoint protection.

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Expand block volume limitations

You cannot expand certain types of volumes through the ViPR services.

  • RecoverPoint target volumes. When you expand RecoverPoint source volumes through the ViPR services, ViPR expands target volumes.
  • SRDF target volumes.
  • RecoverPoint journal volumes.
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Block Storage Services > Expand Block Volume

Expand the storage capacity of a block volume.

Before you begin

You must be logged in as a user with admin rights to the project that contains the volume you want to expand.

The volume must meet all the prerequisites in Expand block volume requirements.

Procedure

  1. From the ViPR service catalog, run Block Storage Services > Expand Block Volume.
  2. In the Project field, select the project that contains the volume.
  3. In the Volume field, select the volume to expand.
  4. In the Size field, enter a size number larger than the current size of the volume.
  5. Click Order.

After you finish

According to RecoverPoint best practices, your RecoverPoint journal volumes should be 2.5 times as large as the volumes they protect. To comply with best practices, when you expand a VPLEX virtual volume with RecoverPoint protection, expand the RecoverPoint journal volumes.

To adjust the journal volume size, use Unisphere for RecoverPoint . For more information, see the EMC RecoverPoint Administrator’s Guide.

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Expand a block volume mounted on a Linux host

The Expand Linux Mount service expands a volume that is mounted on a Linux host.

Before you begin

Run a ViPR service such as Create Block Volume to create the volume. Alternatively, call Ingest Unmanaged Volumes to bring an external volume under ViPR management.

Discover the Linux host. To add a host, select Physical Assets > Hosts.

You must be logged in as a tenant administrator with access to the Linux host where the volume is mounted.

Do not access storage during an expand operation. Users that access storage while the service is running can experience an access disruption.

Procedure

  1. Log in as a tenant administrator with access to the Linux host where the target volume is mounted.
  2. Choose Block services for Linux > Expand Linux Mount from the ViPR service catalog.
  3. In the Linux Host field, select the Linux host where the volume is mounted.
  4. In the Volume field, select the volume that you want to expand.
  5. Choose the new size of the volume.
  6. Click Order.
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Expand a block volume mounted on a Windows host

The Expand Volume on Windows service non-disruptively expands a volume that has been mounted on a Windows host.

Before you begin

Run a ViPR service such as Create Block Volume to create the volume. Alternatively, call Ingest Unmanaged Volumes to bring an external volume under ViPR management.

Discover the Windows host. To add a host, select Physical Assets > Hosts.

You must be logged in as a tenant administrator with access to the Windows host where the volume is mounted.

Procedure

  1. Log in as a tenant administrator with access to the Windows host where the target volume is mounted.
  2. From the ViPR service catalog. select Block services for Windows > Expand Volume on Windows.
  3. Select the storage type: An Exclusive volume means that this volume is mounted on a specific host. A Sharedvolume indicates that the volume is mounted on a Windows cluster.
  4. Choose the Windows host or cluster where the volume is mounted.
  5. In the Volume field, select the volume to expand.
  6. In the New Size field, enter the new size of the volume.
  7. Click Order.
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Orchestration: Expand a VPLEX virtual volume with RecoverPoint protection

ViPR supports the expansion of VPLEX virtual volumes that have RecoverPoint protection. An orchestration is a series of functions performed by ViPR in a specific order that accomplishes a requested task.

Before you begin

To build the volume, follow the instructions in ViPR support for VPLEX high availability volumes with RecoverPoint protection.

To expand the volume, run one of the services described earlier in this article from the ViPR service catalog. The sequence that follows describes the orchestration ViPR performs after you submit the expansion request.

Procedure

  1. Remove the RecoverPoint replication set for the volume.
  2. Use native array tools to expand the physical volume.
    ViPR expands the RecoverPoint source and target volumes. It cannot expand the RecoverPoint journal volumes.
  3. Re-create the RecoverPoint replication set.

Results

ViPR expands the volume to the size requested by the user. The expand service does not change the worldwide name (WWN) of the volume.

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