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Chapter 25. Monitoring Stratis file systems
As a Stratis user, you can view information about Stratis volumes on your system to monitor their state and free space.
25.1. Displaying information about Stratis volumes
You can lists statistics about your Stratis volumes, such as the total, used, and free size or file systems and block devices belonging to a pool, by using the stratis utility.
Standard Linux utilities such as df report the size of the XFS file system layer on Stratis, which is 1 TiB. This is not useful information, because the actual storage usage of Stratis is less due to thin provisioning, and also because Stratis automatically grows the file system when the XFS layer is close to full.
Regularly monitor the amount of data written to your Stratis file systems, which is reported as the Total Physical Used value. Make sure it does not exceed the Total Physical Size value.
Prerequisites
- Stratis is installed. See Installing Stratis.
-
The
stratisdservice is running.
Procedure
To display information about all block devices used for Stratis on your system:
# stratis blockdev Pool Name Device Node Physical Size State Tier my-pool /dev/sdb 9.10 TiB In-use Data
To display information about all Stratis pools on your system:
# stratis pool Name Total Physical Size Total Physical Used my-pool 9.10 TiB 598 MiB
To display information about all Stratis file systems on your system:
# stratis filesystem Pool Name Name Used Created Device my-pool my-fs 546 MiB Nov 08 2018 08:03 /dev/stratis/my-pool/my-fs
Additional resources
-
stratis(8)man page on your system
25.2. Viewing a Stratis pool by using the web console
You can use the web console to view an existing Stratis pool and the file systems it contains.
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
stratisdservice is running. - You have an existing Stratis pool.
Procedure
- Log in to the RHEL 9 web console.
- Click .
In the Storage table, click the Stratis pool you want to view.
The Stratis pool page displays all the information about the pool and the file systems that you created in the pool.
