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Diffstat (limited to 'Documentation/device-mapper/thin-provisioning.txt')
| -rw-r--r-- | Documentation/device-mapper/thin-provisioning.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt index 50c44cf79b0..8a7a3d46e0d 100644 --- a/Documentation/device-mapper/thin-provisioning.txt +++ b/Documentation/device-mapper/thin-provisioning.txt @@ -235,6 +235,8 @@ i) Constructor read_only: Don't allow any changes to be made to the pool metadata. + error_if_no_space: Error IOs, instead of queueing, if no space. + Data block size must be between 64KB (128 sectors) and 1GB (2097152 sectors) inclusive. @@ -276,6 +278,11 @@ ii) Status contain the string 'Fail'. The userspace recovery tools should then be used. + error_if_no_space|queue_if_no_space + If the pool runs out of data or metadata space, the pool will + either queue or error the IO destined to the data device. The + default is to queue the IO until more space is added. + iii) Messages create_thin <dev id> |