Virtual device descriptor. More...

#include <vdev_impl.h>

Collaboration diagram for vdev:

Data Fields
kmutex_t	vdev_dtl_lock
	vdev_dtl_{map,resilver}
kmutex_t	vdev_stat_lock
	vdev_stat
kmutex_t	vdev_probe_lock
	protects vdev_probe_zio
VDev common
Common to all vdev types.
uint64_t	vdev_id
	child number in vdev parent
uint64_t	vdev_guid
	unique ID for this vdev
uint64_t	vdev_guid_sum
	self guid + all child guids
uint64_t	vdev_orig_guid
	orig.
uint64_t	vdev_asize
	allocatable device capacity
uint64_t	vdev_min_asize
	min acceptable asize
uint64_t	vdev_max_asize
	max acceptable asize
uint64_t	vdev_ashift
	block alignment shift
uint64_t	vdev_state
	see VDEV_STATE_* #defines
uint64_t	vdev_prevstate
	used when reopening a vdev
vdev_ops_t *	vdev_ops
	vdev operations
spa_t *	vdev_spa
	spa for this vdev
void *	vdev_tsd
	type-specific data
vnode_t *	vdev_name_vp
	vnode for pathname
vnode_t *	vdev_devid_vp
	vnode for devid
vdev_t *	vdev_top
	top-level vdev
vdev_t *	vdev_parent
	parent vdev
vdev_t **	vdev_child
	array of children
uint64_t	vdev_children
	number of children
space_map_t	vdev_dtl [DTL_TYPES]
	in-core dirty time logs
vdev_stat_t	vdev_stat
	virtual device statistics
boolean_t	vdev_expanding
	expand the vdev?
boolean_t	vdev_reopening
	reopen in progress?
int	vdev_open_error
	error on last open
kthread_t *	vdev_open_thread
	thread opening children
uint64_t	vdev_crtxg
	txg when top-level was added
VDev top-level state
Top-level vdev state.
uint64_t	vdev_ms_array
	metaslab array object
uint64_t	vdev_ms_shift
	metaslab size shift
uint64_t	vdev_ms_count
	number of metaslabs
metaslab_group_t *	vdev_mg
	metaslab group
metaslab_t **	vdev_ms
	metaslab array
txg_list_t	vdev_ms_list
	per-txg dirty metaslab lists
txg_list_t	vdev_dtl_list
	per-txg dirty DTL lists
txg_node_t	vdev_txg_node
	per-txg dirty vdev linkage
boolean_t	vdev_remove_wanted
	async remove wanted?
boolean_t	vdev_probe_wanted
	async probe wanted?
uint64_t	vdev_removing
	device is being removed?
list_node_t	vdev_config_dirty_node
	config dirty list
list_node_t	vdev_state_dirty_node
	state dirty list
uint64_t	vdev_deflate_ratio
	deflation ratio (x512)
uint64_t	vdev_islog
	is an intent log device
uint64_t	vdev_ishole
	is a hole in the namespace
VDev Leaf State
Leaf vdev state.
uint64_t	vdev_psize
	physical device capacity
space_map_obj_t	vdev_dtl_smo
	dirty time log space map obj
txg_node_t	vdev_dtl_node
	per-txg dirty DTL linkage
uint64_t	vdev_wholedisk
	true if this is a whole disk
uint64_t	vdev_offline
	persistent offline state
uint64_t	vdev_faulted
	persistent faulted state
uint64_t	vdev_degraded
	persistent degraded state
uint64_t	vdev_removed
	persistent removed state
uint64_t	vdev_resilvering
	persistent resilvering state
uint64_t	vdev_nparity
	number of parity devices for raidz
char *	vdev_path
	vdev path (if any)
char *	vdev_devid
	vdev devid (if any)
char *	vdev_physpath
	vdev device path (if any)
char *	vdev_fru
	physical FRU location
uint64_t	vdev_not_present
	not present during import
uint64_t	vdev_unspare
	unspare when resilvering done
hrtime_t	vdev_last_try
	last reopen time
boolean_t	vdev_nowritecache
	true if flushwritecache failed
boolean_t	vdev_notrim
	true if trim failed
boolean_t	vdev_checkremove
	temporary online test
boolean_t	vdev_forcefault
	force online fault
boolean_t	vdev_splitting
	split or repair in progress
boolean_t	vdev_delayed_close
	delayed device close?
uint8_t	vdev_tmpoffline
	device taken offline temporarily?
uint8_t	vdev_detached
	device detached?
uint8_t	vdev_cant_read
	vdev is failing all reads
uint8_t	vdev_cant_write
	vdev is failing all writes
uint64_t	vdev_isspare
	was a hot spare
uint64_t	vdev_isl2cache
	was a l2cache device
vdev_queue_t	vdev_queue
	I/O deadline schedule queue.
vdev_cache_t	vdev_cache
	physical block cache
spa_aux_vdev_t *	vdev_aux
	for l2cache vdevs
zio_t *	vdev_probe_zio
	root of current probe
vdev_aux_t	vdev_label_aux
	on-disk aux state
struct trim_map *	vdev_trimmap