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lvmsar — LVM system activity reporter. Not supported under LVM2; prefer `dmstats`. More information: <https:/

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandlvmreporteractivityclinotlvmsarsystem

linux

Problem

How to use the lvmsar command: LVM system activity reporter. Not supported under LVM2; prefer dmstats. More information: <https://manned.org/lvmsar>.

Solution

lvmsar — LVM system activity reporter. Not supported under LVM2; prefer dmstats. More information: <https://manned.org/lvmsar>.

Run the legacy reporter (LVM1 systems only):

lvmsar

Report I/O statistics for a device using device-mapper stats:

dmstats report {{/dev/mapper/device}}

List statistics regions for a device:

dmstats list {{/dev/mapper/device}}

Code Snippets

Run the legacy reporter (LVM1 systems only)

lvmsar

Report I/O statistics for a device using device-mapper stats

dmstats report {{/dev/mapper/device}}

List statistics regions for a device

dmstats list {{/dev/mapper/device}}

Context

tldr-pages: linux/lvmsar

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