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Diffstat (limited to 'Documentation/device-mapper/thin-provisioning.txt')
| -rw-r--r-- | Documentation/device-mapper/thin-provisioning.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/device-mapper/thin-provisioning.txt b/Documentation/device-mapper/thin-provisioning.txt index da50347c005..a119fbdd060 100644 --- a/Documentation/device-mapper/thin-provisioning.txt +++ b/Documentation/device-mapper/thin-provisioning.txt | |||
| @@ -75,10 +75,12 @@ less sharing than average you'll need a larger-than-average metadata device. | |||
| 75 | 75 | ||
| 76 | As a guide, we suggest you calculate the number of bytes to use in the | 76 | As a guide, we suggest you calculate the number of bytes to use in the |
| 77 | metadata device as 48 * $data_dev_size / $data_block_size but round it up | 77 | metadata device as 48 * $data_dev_size / $data_block_size but round it up |
| 78 | to 2MB if the answer is smaller. The largest size supported is 16GB. | 78 | to 2MB if the answer is smaller. If you're creating large numbers of |
| 79 | snapshots which are recording large amounts of change, you may find you | ||
| 80 | need to increase this. | ||
| 79 | 81 | ||
| 80 | If you're creating large numbers of snapshots which are recording large | 82 | The largest size supported is 16GB: If the device is larger, |
| 81 | amounts of change, you may need find you need to increase this. | 83 | a warning will be issued and the excess space will not be used. |
| 82 | 84 | ||
| 83 | Reloading a pool table | 85 | Reloading a pool table |
| 84 | ---------------------- | 86 | ---------------------- |