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Chapter 26. 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.
26.1. Stratis sizes reported by different utilities
This section explains the difference between Stratis sizes reported by standard utilities such as df and 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.
Additional resources
-
stratis(8)man page.
26.2. Displaying information about Stratis volumes
This procedure lists statistics about your Stratis volumes, such as the total, used, and free size or file systems and block devices belonging to a pool.
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.
