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Fix paths for devicemapper (#4562)

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Larry
2017-09-11 21:06:53 -03:00
committed by Misty Stanley-Jones
parent aecc7b7886
commit e39f5dccf6
1 changed files with 8 additions and 8 deletions
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16
engine/userguide/storagedriver/device-mapper-driver.md
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@@ -111,8 +111,8 @@ For production systems, see
Deferred Removal Enabled: false
Deferred Deletion Enabled: false
Deferred Deleted Device Count: 0
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
Data loop file: /var/lib/docker/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/metadata
Library Version: 1.02.135-RHEL7 (2016-11-16)
<output truncated>
```
@@ -120,7 +120,7 @@ For production systems, see
This host is running in `loop-lvm` node, which is **not** supported on
production systems. This is indicated by the fact that the `Data loop file`
and a `Metadata loop file` are on files under
`/var/lib/docker/devicemapper/devicemapper`. These are loopback-mounted
`/var/lib/docker/devicemapper`. These are loopback-mounted
sparse files. For production systems, see
[Configure direct-lvm mode for production](#configure-direct-lvm-mode-for-production).
@@ -477,8 +477,8 @@ paths for `Data loop file` and `Metadata loop file`:
```bash
$ docker info |grep 'loop file'
Data loop file: /var/lib/docker/devicemapper/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/devicemapper/metadata
Data loop file: /var/lib/docker/devicemapper/data
Metadata loop file: /var/lib/docker/devicemapper/metadata
```
Follow these steps to increase the size of the thin pool. In this example, the
@@ -487,7 +487,7 @@ thin pool is 100 GB, and is increased to 200 GB.
1. List the sizes of the devices.
```bash
$ sudo ls -lh /var/lib/docker/devicemapper/devicemapper/
$ sudo ls -lh /var/lib/docker/devicemapper/
total 1175492
-rw------- 1 root root 100G Mar 30 05:22 data
@@ -499,13 +499,13 @@ thin pool is 100 GB, and is increased to 200 GB.
decreasing the size is a destructive operation.
```bash
$ sudo truncate -s 200G /var/lib/docker/devicemapper/devicemapper/data
$ sudo truncate -s 200G /var/lib/docker/devicemapper/data
```
3. Verify the file size changed.
```bash
$ sudo ls -lh /var/lib/docker/devicemapper/devicemapper/
$ sudo ls -lh /var/lib/docker/devicemapper/
total 1.2G
-rw------- 1 root root 200G Apr 14 08:47 data