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Diffstat (limited to 'Documentation/admin-guide/device-mapper/vdo.rst')
| -rw-r--r-- | Documentation/admin-guide/device-mapper/vdo.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/admin-guide/device-mapper/vdo.rst b/Documentation/admin-guide/device-mapper/vdo.rst index 7e1ecafdf91e..a14e6d3e787c 100644 --- a/Documentation/admin-guide/device-mapper/vdo.rst +++ b/Documentation/admin-guide/device-mapper/vdo.rst @@ -241,6 +241,7 @@ Messages All vdo devices accept messages in the form: :: + dmsetup message <target-name> 0 <message-name> <message-parameters> The messages are: @@ -250,7 +251,12 @@ The messages are: by the vdostats userspace program to interpret the output buffer. - dump: + config: + Outputs useful vdo configuration information. Mostly used + by users who want to recreate a similar VDO volume and + want to know the creation configuration used. + + dump: Dumps many internal structures to the system log. This is not always safe to run, so it should only be used to debug a hung vdo. Optional parameters to specify structures to |