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man: lvmcache changes related to removal and splitting

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This commit is contained in:
David Teigland 2014-10-06 14:04:09 -05:00
parent 902192abdc
commit b7c81769e7
1 changed files with 19 additions and 18 deletions
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37
man/lvmcache.7.in
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@ -138,15 +138,30 @@ OriginLV is renamed OriginLV_corig and becomes hidden.
.SH Cache Removal
.SS Split a cache pool LV off of a cache LV
\&
A cache pool LV can be disconnected from a cache LV, leaving an
unused cache pool LV, and an uncached origin LV. This command
writes back data from the cache pool to the origin LV when necessary.
.B lvconvert --splitcache VG/CacheLV
.SS Removing a cache pool LV without removing its linked origin LV
\&
This writes back data from the cache pool to the origin LV when necessary,
then removes the cache pool LV, leaving the un-cached origin LV.
then removes the cache pool LV, leaving the uncached origin LV.
.B lvremove VG/CachePoolLV
An alternative command that also disconnects the cache pool from the cache
LV, and deletes the cache pool:
.B lvconvert --uncache VG/CacheLV
.I Example
.nf
# lvs vg
@ -161,29 +176,15 @@ then removes the cache pool LV, leaving the un-cached origin LV.
lvol0 vg -wi-a----- 100.00g
.fi
.SS Removing an origin LV without removing its linked cache pool LV
.SS Removing a cache LV: both origin LV and the cache pool LV
\&
This removes the origin LV, leaving the cache pool LV which can be linked
to another origin LV.
Removing a cache LV removes both the origin LV and the linked cache pool
LV.
.B lvremove VG/CacheLV
.I Example
.nf
# lvs vg
LV VG Attr LSize Pool Origin
cache0 vg Cwi---C--- 10.00g
lvol0 vg Cwi-a-C--- 100.00g cache0 [lvol0_corig]
# lvremove vg/lvol0
# lvs vg
LV VG Attr LSize Pool Origin
cache0 vg Cwi---C--- 10.00g
.fi
.SH Cache Topics