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| author | Bruce Johnston <bjohnsto@redhat.com> | 2024-07-18 20:02:38 +0200 |
|---|---|---|
| committer | Mikulas Patocka <mpatocka@redhat.com> | 2024-08-21 13:05:56 +0200 |
| commit | 47874c98dc0873aad65259d09f9b9029e97429e3 (patch) | |
| tree | ab7de6c90942dfe7187f28b17cd276923f488b0c /Documentation | |
| parent | dm vdo: remove bad check of bi_next field (diff) | |
| download | linux-47874c98dc0873aad65259d09f9b9029e97429e3.tar.xz linux-47874c98dc0873aad65259d09f9b9029e97429e3.zip | |
dm vdo: add dmsetup message for returning configuration info
Add a new dmsetup message called config, which will return
useful configuration information for the vdo volume and
the uds index associated with it. The output is a YAML
string, and contains a version number to allow future
additions to the content.
Signed-off-by: Bruce Johnston <bjohnsto@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/device-mapper/vdo.rst | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/admin-guide/device-mapper/vdo.rst b/Documentation/admin-guide/device-mapper/vdo.rst index c69ac186863a..a14e6d3e787c 100644 --- a/Documentation/admin-guide/device-mapper/vdo.rst +++ b/Documentation/admin-guide/device-mapper/vdo.rst @@ -251,7 +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 |