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authorMike Snitzer <snitzer@redhat.com>2015-07-15 11:40:24 -0400
committerMike Snitzer <snitzer@redhat.com>2015-07-16 10:23:50 -0400
commite4c78e210daea17f82f12037005df225e22189b9 (patch)
tree14ad14aa5ba061cd7ed8bc57ce4937c105001b01 /Documentation/device-mapper
parentbcc696fac11fe13e59dda5aaec6322a25b7c9a3a (diff)
dm thin: display 'needs_check' in status if it is set
There is currently no way to see that the needs_check flag has been set in the metadata. Display 'needs_check' in the thin-pool status if it is set in the thinp metadata. Also, update thinp documentation. Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'Documentation/device-mapper')
-rw-r--r--Documentation/device-mapper/thin-provisioning.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt
index 4f67578b2954..1699a55b7b70 100644
--- a/Documentation/device-mapper/thin-provisioning.txt
+++ b/Documentation/device-mapper/thin-provisioning.txt
@@ -296,7 +296,7 @@ ii) Status
underlying device. When this is enabled when loading the table,
it can get disabled if the underlying device doesn't support it.
- ro|rw
+ ro|rw|out_of_data_space
If the pool encounters certain types of device failures it will
drop into a read-only metadata mode in which no changes to
the pool metadata (like allocating new blocks) are permitted.
@@ -314,6 +314,13 @@ ii) Status
module parameter can be used to change this timeout -- it
defaults to 60 seconds but may be disabled using a value of 0.
+ needs_check
+ A metadata operation has failed, resulting in the needs_check
+ flag being set in the metadata's superblock. The metadata
+ device must be deactivated and checked/repaired before the
+ thin-pool can be made fully operational again. '-' indicates
+ needs_check is not set.
+
iii) Messages
create_thin <dev id>