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authorZdenek Kabelac <zkabelac@redhat.com>2016-04-25 13:38:24 +0200
committerZdenek Kabelac <zkabelac@redhat.com>2016-04-26 23:29:58 +0200
commit07d92322c13e942b8a47b4370a82b70d33a6f0c8 (patch)
tree982f87ad31c51035964def1832c28ebfbfabb951
parentd90d99b23d94dea41b65166f8bb19cb2883e527c (diff)
downloadlvm2-07d92322c13e942b8a47b4370a82b70d33a6f0c8.tar.gz
man: lvcreate doc passthrough
Add few more words about passthough mode.
-rw-r--r--man/lvcreate.8.in5
1 files changed, 4 insertions, 1 deletions
diff --git a/man/lvcreate.8.in b/man/lvcreate.8.in
index f6bb14f7f..fd8b3a7f6 100644
--- a/man/lvcreate.8.in
+++ b/man/lvcreate.8.in
@@ -219,7 +219,10 @@ If \fBwritethough\fP is specified, a write is considered complete only
when it has been stored in the cache pool LV and on the origin LV.
While \fBwritethrough\fP may be slower for writes, it is more
resilient if something should happen to a device associated with the
-cache pool LV.
+cache pool LV. With \fBpassthrough\fP mode, all reads are served
+from origin LV (all reads miss the cache) and all writes are
+forwarded to the origin LV; additionally, write hits cause cache
+block invalidates. See \fBlvmcache(7)\fP for more details.
.
.HP
.BR \-\-cachepolicy