lvmsar
Deprecated LVM1 system activity reporter for logical volume I/O statistics
TLDR
Run the legacy LVM1 statistics reporter (obsolete on modern LVM2)
$ lvmsar
Report device-mapper I/O statistics$ dmstats report [/dev/mapper/device]
List configured statistics regions$ dmstats list [/dev/mapper/device]
SYNOPSIS
lvmsar
DESCRIPTION
lvmsar was the LVM system activity reporter for displaying I/O statistics on logical volumes. It processed data collected by lvmsadc and presented performance metrics for analysis.This command is not supported under LVM2. Modern systems should use dmstats instead, which provides comprehensive device-mapper statistics including read/write operations, throughput, and latency histograms.
INSTALL
sudo apt install lvm2
sudo dnf install lvm2
sudo pacman -S lvm2
sudo apk add lvm2
sudo zypper install lvm2
nix profile install nixpkgs#lvm2
CAVEATS
Deprecated: This command only works on legacy LVM1 systems. For LVM2, use dmstats report to view I/O statistics on device-mapper devices.