Peter Rajnoha e8bbcda2a3 Add lv_layout_and_type fn, lv_layout and lv_type reporting fields. ... The lv_layout and lv_type fields together help with LV identification. We can do basic identification using the lv_attr field which provides very condensed view. In contrast to that, the new lv_layout and lv_type fields provide more detialed information on exact layout and type used for LVs. For top-level LVs which are pure types not combined with any other LV types, the lv_layout value is equal to lv_type value. For non-top-level LVs which may be combined with other types, the lv_layout describes the underlying layout used, while the lv_type describes the use/type/usage of the LV. These two new fields are both string lists so selection (-S/--select) criteria can be defined using the list operators easily: [] for strict matching {} for subset matching. For example, let's consider this: $ lvs -a -o name,vg_name,lv_attr,layout,type LV VG Attr Layout Type [lvol1_pmspare] vg ewi------- linear metadata,pool,spare pool vg twi-a-tz-- pool,thin pool,thin [pool_tdata] vg rwi-aor--- level10,raid data,pool,thin [pool_tdata_rimage_0] vg iwi-aor--- linear image,raid [pool_tdata_rimage_1] vg iwi-aor--- linear image,raid [pool_tdata_rimage_2] vg iwi-aor--- linear image,raid [pool_tdata_rimage_3] vg iwi-aor--- linear image,raid [pool_tdata_rmeta_0] vg ewi-aor--- linear metadata,raid [pool_tdata_rmeta_1] vg ewi-aor--- linear metadata,raid [pool_tdata_rmeta_2] vg ewi-aor--- linear metadata,raid [pool_tdata_rmeta_3] vg ewi-aor--- linear metadata,raid [pool_tmeta] vg ewi-aor--- level1,raid metadata,pool,thin [pool_tmeta_rimage_0] vg iwi-aor--- linear image,raid [pool_tmeta_rimage_1] vg iwi-aor--- linear image,raid [pool_tmeta_rmeta_0] vg ewi-aor--- linear metadata,raid [pool_tmeta_rmeta_1] vg ewi-aor--- linear metadata,raid thin_snap1 vg Vwi---tz-k thin snapshot,thin thin_snap2 vg Vwi---tz-k thin snapshot,thin thin_vol1 vg Vwi-a-tz-- thin thin thin_vol2 vg Vwi-a-tz-- thin multiple,origin,thin Which is a situation with thin pool, thin volumes and thin snapshots. We can see internal 'pool_tdata' volume that makes up thin pool has actually a level10 raid layout and the internal 'pool_tmeta' has level1 raid layout. Also, we can see that 'thin_snap1' and 'thin_snap2' are both thin snapshots while 'thin_vol1' is thin origin (having multiple snapshots). Such reporting scheme provides much better base for selection criteria in addition to providing more detailed information, for example: $ lvs -a -o name,vg_name,lv_attr,layout,type -S 'type=metadata' LV VG Attr Layout Type [lvol1_pmspare] vg ewi------- linear metadata,pool,spare [pool_tdata_rmeta_0] vg ewi-aor--- linear metadata,raid [pool_tdata_rmeta_1] vg ewi-aor--- linear metadata,raid [pool_tdata_rmeta_2] vg ewi-aor--- linear metadata,raid [pool_tdata_rmeta_3] vg ewi-aor--- linear metadata,raid [pool_tmeta] vg ewi-aor--- level1,raid metadata,pool,thin [pool_tmeta_rmeta_0] vg ewi-aor--- linear metadata,raid [pool_tmeta_rmeta_1] vg ewi-aor--- linear metadata,raid (selected all LVs which are related to metadata of any type) lvs -a -o name,vg_name,lv_attr,layout,type -S 'type={metadata,thin}' LV VG Attr Layout Type [pool_tmeta] vg ewi-aor--- level1,raid metadata,pool,thin (selected all LVs which hold metadata related to thin) lvs -a -o name,vg_name,lv_attr,layout,type -S 'type={thin,snapshot}' LV VG Attr Layout Type thin_snap1 vg Vwi---tz-k thin snapshot,thin thin_snap2 vg Vwi---tz-k thin snapshot,thin (selected all LVs which are thin snapshots) lvs -a -o name,vg_name,lv_attr,layout,type -S 'layout=raid' LV VG Attr Layout Type [pool_tdata] vg rwi-aor--- level10,raid data,pool,thin [pool_tmeta] vg ewi-aor--- level1,raid metadata,pool,thin (selected all LVs with raid layout, any raid layout) lvs -a -o name,vg_name,lv_attr,layout,type -S 'layout={raid,level1}' LV VG Attr Layout Type [pool_tmeta] vg ewi-aor--- level1,raid metadata,pool,thin (selected all LVs with raid level1 layout exactly) And so on...		2014-08-15 14:50:38 +02:00
..
activate	activation: Fix upgrades using uuid suffixes.	2014-07-30 21:55:11 +01:00
cache	cleanup: just safely copy string	2014-07-04 12:31:17 +02:00
cache_segtype	cache: use get_cache_mode for validation	2014-07-17 16:16:45 +02:00
commands	conf: add report/list_item_separator lvm.conf option	2014-07-10 16:18:45 +02:00
config	thin and cache: unify pool common code	2014-07-22 22:41:38 +02:00
datastruct	Add lv_layout_and_type fn, lv_layout and lv_type reporting fields.	2014-08-15 14:50:38 +02:00
device	dev-type: print aborting log_error	2014-07-04 12:31:17 +02:00
display	prompt: display 'n' for EOF	2014-07-11 12:47:41 +02:00
error	cleanup: modules_needed only for devmapper	2014-04-30 10:26:30 +02:00
filters	filter-mpath: fix primary device lookup failure for partition when processing mpath filter	2014-08-08 10:49:19 +02:00
format1	metadata: fix ALLOCATABLE_PV for lvm1 format	2014-07-11 12:24:15 +02:00
format_pool	pvscan: use format feature flags in lvmetad code	2014-01-08 02:13:13 +00:00
format_text	metadata: Reinstate system info in metadata.	2014-07-21 15:54:20 +01:00
freeseg	cleanup: drop unneeded included header files	2012-08-23 14:37:20 +02:00
label	cleanup: remove unneeded header files	2014-02-11 19:00:06 +01:00
locking	locking: fix cluster locking	2014-06-20 16:38:48 +01:00
log	report: select: refactor: move str_list to libdm	2014-06-17 16:27:20 +02:00
metadata	Add lv_layout_and_type fn, lv_layout and lv_type reporting fields.	2014-08-15 14:50:38 +02:00
mirror	report: select: refactor: move percent handling code to libdm for reuse	2014-06-17 16:27:21 +02:00
misc	activation: Fix upgrades using uuid suffixes.	2014-07-30 21:55:11 +01:00
mm	memlock: skip more entries	2014-06-20 11:13:41 +02:00
properties	report: add separate fields for PV/VG/LV attributes	2014-07-04 15:40:17 +02:00
raid	refactor: add defines for raid segtypes	2014-08-15 13:28:43 +02:00
replicator	compilation: fix warnings: build_dm_uuid now accepts whole struct logical_volume, not lvid	2014-06-18 14:43:13 +02:00
report	Add lv_layout_and_type fn, lv_layout and lv_type reporting fields.	2014-08-15 14:50:38 +02:00
snapshot	report: select: refactor: move percent handling code to libdm for reuse	2014-06-17 16:27:21 +02:00
striped	metadata: use outfc for comments	2014-07-17 16:17:44 +02:00
thin	report: select: refactor: move percent handling code to libdm for reuse	2014-06-17 16:27:21 +02:00
unknown	unknown: add_target_line is not needed	2014-04-30 10:26:30 +02:00
uuid	cleanup: drop unused define	2014-03-12 19:12:34 +01:00
zero	cleanup: modules_needed only for devmapper	2014-04-30 10:26:30 +02:00
Makefile.in	locking: Separate out flock and signal code.	2014-05-01 17:37:14 +01:00