md_devices

Software RAID array settings.

Platform support

Please be aware that some queries can only be run against certain platforms. Below is a list of the supported platforms that this query supports. Zercurity will automatically pause queries from running if errors are detected. Running a query against an unsupported platform will result in the following error: no such table: md_devices

• Linux

Table schema

Name	Type	Description
device_name	TEXT	md device name
status	TEXT	Current state of the array
raid_level	INTEGER	Current raid level of the array
size	BIGINT	size of the array in blocks
chunk_size	BIGINT	chunk size in bytes
raid_disks	INTEGER	Number of configured RAID disks in array
nr_raid_disks	INTEGER	Number of partitions or disk devices to comprise the array
working_disks	INTEGER	Number of working disks in array
active_disks	INTEGER	Number of active disks in array
failed_disks	INTEGER	Number of active disks in array
spare_disks	INTEGER	Number of active disks in array
superblock_state	TEXT	State of the superblock
superblock_version	TEXT	Version of the superblock
superblock_update_time	BIGINT	Unix timestamp of last update
bitmap_on_mem	TEXT	Pages allocated in in-memory bitmap, if enabled
bitmap_chunk_size	TEXT	Bitmap chunk size
bitmap_external_file	TEXT	External referenced bitmap file
recovery_progress	TEXT	Progress of the recovery activity
recovery_finish	TEXT	Estimated duration of recovery activity
recovery_speed	TEXT	Speed of recovery activity
resync_progress	TEXT	Progress of the resync activity
resync_finish	TEXT	Estimated duration of resync activity
resync_speed	TEXT	Speed of resync activity
reshape_progress	TEXT	Progress of the reshape activity
reshape_finish	TEXT	Estimated duration of reshape activity
reshape_speed	TEXT	Speed of reshape activity
check_array_progress	TEXT	Progress of the resync activity
check_array_finish	TEXT	Estimated duration of resync activity
check_array_speed	TEXT	Speed of resync activity
unused_devices	TEXT	Unused devices
other	TEXT	Other information associated with array from /proc/mdstat

Query examples

Select all the results for the given table.

SELECT * FROM md_devices;