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Chapter 26. Extending a Stratis volume 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.
Stratis is a Technology Preview feature only. Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process. For more information about the support scope of Red Hat Technology Preview features, see https://access.redhat.com/support/offerings/techpreview.
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. See Installing Stratis.
-
The
stratisdservice is running. - The block devices that you are adding to the Stratis pool are not in use and not mounted.
- The block devices that you are adding to the Stratis pool are at least 1 GiB in size each.
Procedure
To add one or more block devices to the pool, use:
# stratis pool add-data my-pool device-1 device-2 device-n
Additional resources
-
stratis(8)man page on your system
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 8 web console.
For instructions, see Installing and enabling the web console.
-
The
stratisdservice is running. - A Stratis pool is created.
- The block devices on which you are creating a Stratis pool are not in use and are not mounted.
- Each block device on which you are creating a Stratis pool is at least 1 GB.
Procedure
Log in to the RHEL 8 web console.
For details, see Logging in to the web console.
- Click .
- In the Storage table, click the Stratis pool to which you want to add a block device.
- On the Stratis pool page, click and select the Tier where you want to add a block device as data or cache.
- If you are adding the block device to a Stratis pool that is encrypted with a passphrase, enter the passphrase.
- Under Block devices, select the devices you want to add to the pool.
- Click .
