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Diffstat (limited to 'man/clvmd.8.in')
| -rw-r--r-- | man/clvmd.8.in | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/man/clvmd.8.in b/man/clvmd.8.in index 9b9310d56..21f8c7dbf 100644 --- a/man/clvmd.8.in +++ b/man/clvmd.8.in @@ -154,6 +154,32 @@ This timeout will be ignored if you start \fBclvmd\fP with the \fB\-d\fP. .br Display the version of the cluster LVM daemon. . +.SH NOTES +. +.SS Activation +. +In a clustered VG, clvmd is used for activation, and the following values are +possible with \fBlvchange/vgchange -a\fP: +.IP \fBy\fP|\fBsy\fP +clvmd activates the LV in shared mode (with a shared lock), +allowing multiple nodes to activate the LV concurrently. +If the LV type prohibits shared access, such as an LV with a snapshot, +an exclusive lock is automatically used instead. +clvmd attempts to activate the LV concurrently on all nodes. +.IP \fBey\fP +clvmd activates the LV in exclusive mode (with an exclusive lock), +allowing a single node to activate the LV. +clvmd attempts to activate the LV concurrently on all nodes, but only +one will succeed. +.IP \fBly\fP +clvmd attempts to activate the LV only on the local node. +If the LV type allows concurrent access, then shared mode is used, +otherwise exclusive. +.IP \fBn\fP +clvmd deactivates the LV on all nodes. +.IP \fBln\fP +clvmd deactivates the LV on the local node. +. .SH ENVIRONMENT VARIABLES .TP .B LVM_CLVMD_BINARY |