lvmsadc
was the LVM system activity data collector for gathering I/O
TLDR
Start the legacy LVM1 statistics collector (obsolete on modern LVM2)
$ lvmsadc
On current systems, report I/O stats with dmstats instead$ dmstats report [/dev/mapper/device]
SYNOPSIS
lvmsadc
DESCRIPTION
lvmsadc was the LVM system activity data collector for gathering I/O statistics on logical volumes. It collected raw performance data that could be analyzed with the companion tool lvmsar.This command is not supported under LVM2. Modern LVM2 installations should use dmstats instead, which provides more comprehensive device-mapper statistics including histogram data and region-based measurements.
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 to collect and report I/O statistics on device-mapper devices.