title: Linux hardware: SD card health
agents: linux
catalog: os/hardware
license: GPLv2
distribution: check_mk
description:
 Health of an SD card (e.g. the system card of a Raspberry Pi): kernel I/O errors on
 the card and errors of its MMC controller since boot, partitions that were read-write
 at discovery and are now read-only (CRIT - the typical end of a worn-out card), and
 the data written per day and drive writes per day. SD cards report no wear values.
 Rule: "Linux hardware: eMMC and SD card".

item:
 The block device, e.g. mmcblk0.

discovery:
 One service per SD card (mmcblk*).
