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Chapter 26. Extending a Stratis pool with additional block devices

You can attach additional block devices to a Stratis pool to provide more storage capacity for Stratis file systems. You can do it manually or by using the web console.

26.1. Adding block devices to a Stratis pool

You can add one or more block devices to a Stratis pool.

Prerequisites

  • Stratis is installed and the stratisd service is running. For more information, see Installing Stratis.
  • The block device on which you are creating a Stratis pool is not in use, unmounted, and is at least 1 GB in space.

Procedure

  • To add one or more block devices to the pool, use: 

    # stratis pool add-data my-pool device-1 device-2 device-n
    Copy to Clipboard

26.2. Adding a block device to a Stratis pool by using the web console

You can use the web console to add a block device to an existing Stratis pool. You can also add caches as a block device.

Prerequisites

  • You have installed the RHEL 9 web console.
  • You have enabled the cockpit service.

  • Your user account is allowed to log in to the web console.

    For instructions, see Installing and enabling the web console.

  • The stratisd service is running.
  • A Stratis pool is created.
  • The block device on which you are creating a Stratis pool is not in use, unmounted, and is at least 1 GB in space.

Procedure

  1. Log in to the RHEL 9 web console.

    For details, see Logging in to the web console.

  2. Click Storage.
  3. In the Storage table, click the Stratis pool to which you want to add a block device.
  4. On the Stratis pool page, click Add block devices and select the Tier where you want to add a block device as data or cache.
  5. If you are adding the block device to a Stratis pool that is encrypted with a passphrase, enter the passphrase.
  6. Under Block devices, select the devices you want to add to the pool.
  7. Click Add.
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