Gitweb: http://git.fedorahosted.org/git/?p=lvm2.git;a=commitdiff;h=33b96bef5bd8cfda3... Commit: 33b96bef5bd8cfda3cf24007b84597f61a2cf0b6 Parent: a5f01dad224929ea39fd3a53753b8341028017b8 Author: David Teigland teigland@redhat.com AuthorDate: Wed Oct 1 10:43:53 2014 -0500 Committer: David Teigland teigland@redhat.com CommitterDate: Wed Oct 1 10:43:53 2014 -0500

Revert "Revert "man: lvmcache should use clearer cache pool options""

This reverts commit f120c954fc065d67c1aacd5cfba58843eb552b0f. --- man/lvmcache.7.in | 32 ++++++++++++++++++-------------- 1 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/man/lvmcache.7.in b/man/lvmcache.7.in index cc92673..6d7109a 100644 --- a/man/lvmcache.7.in +++ b/man/lvmcache.7.in @@ -88,11 +88,15 @@ CacheDataLV is renamed CachePoolLV_cdata and becomes hidden. .br CacheMetaLV is renamed CachePoolLV_cmeta and becomes hidden.

-.B lvconvert --cachepool VG/CacheDataLV --poolmetadata VG/CacheMetaLV +.B lvconvert --type cache-pool --poolmetadata VG/CacheMetaLV \ +.br +.RS +.B VG/CacheDataLV +.RE

.I Example .br -# lvconvert --cachepool vg/cache0 --poolmetadata vg/cache0meta +# lvconvert --type cache-pool --poolmetadata vg/cache0meta vg/cache0

.nf # lvs -a vg @@ -193,21 +197,21 @@ pool sub-LVs redundant.

.nf 0. Create an origin LV we wish to cache -# lvcreate -L 10G -n lvx vg /dev/slow_devs +# lvcreate -L 10G -n lv1 vg /dev/slow_devs

1. Create a 2-way RAID1 cache data LV -# lvcreate --type raid1 -m 1 -L 1G -n lvx_cache vg \ +# lvcreate --type raid1 -m 1 -L 1G -n cache1 vg \ /dev/fast1 /dev/fast2

2. Create a 2-way RAID1 cache metadata LV -# lvcreate --type raid1 -m 1 -L 8M -n lvx_cache_meta vg \ +# lvcreate --type raid1 -m 1 -L 8M -n cache1meta vg \ /dev/fast1 /dev/fast2

3. Create a cache pool LV combining cache data LV and cache metadata LV -# lvconvert --cachepool vg/lvx_cache --poolmetadata vg/lvx_cache_meta +# lvconvert --type cache-pool --poolmetadata vg/cache1meta vg/cache1

4. Create a cached LV by combining the cache pool LV and origin LV -# lvconvert --type cache --cachepool vg/lvx_cache vg/lvx +# lvconvert --type cache --cachepool vg/cache1 vg/lv1 .fi

.SS Writethough caching @@ -223,20 +227,20 @@ cache pool LV, properties of the cache can be specified - in this case,

.nf 0. Create an origin LV we wish to cache (yours may already exist) -# lvcreate -L 10G -n lvx vg /dev/slow +# lvcreate -L 10G -n lv1 vg /dev/slow

1. Create a cache data LV -# lvcreate -L 1G -n lvx_cache vg /dev/fast +# lvcreate -L 1G -n cache1 vg /dev/fast

2. Create a cache metadata LV -# lvcreate -L 8M -n lvx_cache_meta vg /dev/fast +# lvcreate -L 8M -n cache1meta vg /dev/fast

3. Create a cache pool LV specifying cache mode "writethrough" -# lvconvert --cachepool vg/lvx_cache --poolmetadata vg/lvx_cache_meta \ - --cachemode writethrough +# lvconvert --type cache-pool --poolmetadata vg/cache1meta \ + --cachemode writethrough vg/cache1

4. Create a cache LV by combining the cache pool LV and origin LV -# lvconvert --type cache --cachepool vg/lvx_cache vg/lvx +# lvconvert --type cache --cachepool vg/cache1 vg/lv1 .fi

.SS Spare metadata LV @@ -258,7 +262,7 @@ the same VG.

.B lvcreate -n CacheDataLV -L CacheSize VG .br -.B lvconvert --cachepool VG/CacheDataLV +.B lvconvert --type cache-pool VG/CacheDataLV

.SH SEE ALSO