Resize Filesystems on a HostΒΆ
You can resize a filesystem on a host using the system host-fs-modify command.
The following combinations of filesystem and host types are supported.
Filesystem |
Host Type |
Folder |
Logical Volume |
Default Size |
---|---|---|---|---|
backup |
controller |
/opt/backups |
backup-lv |
25 GiB |
docker |
All node types |
/var/lib/docker |
docker-lv |
30 GiB |
kubelet |
All node types |
/var/lib/kubelet |
kubelet-lv |
10 GiB |
log |
All node types |
/var/log |
log-lv |
7.5 GiB |
root |
All node types |
/sysroot |
root-lv |
20 GiB |
scratch |
All node types |
/scratch |
scratch-lv |
variable |
var |
All node types |
/var |
var-lv |
20 GiB |
The following example changes the docker and kubelet filesystem sizes on a controller.
Procedure
List the filesystems on the controller.
~(keystone_admin)$ system host-fs-list controller-1 +--------------------------------------+-----------+-------------+----------------+ | UUID | FS Name | Size in GiB | Logical Volume | +--------------------------------------+-----------+-------------+----------------+ | 42dba35b-d2cb-4cbe-85b5-4ffc0fd75d37 | backup | 25 | backup-lv | | 0c83c1cb-63f3-4d7a-961e-21b460890417 | docker | 30 | docker-lv | | dc212c9b-ba1b-49f1-8bbc-dc41f7f226f2 | kubelet | 10 | kubelet-lv | | 766ad3d7-e420-4aff-9e35-a8e495413ead | log | 8 | log-lv | | 0215defd-ded2-46df-9338-1d39e7648028 | root | 20 | root-lv | | 3079f0ca-28c8-444f-a955-44cc98f96156 | scratch | 16 | scratch-lv | | c987d5d7-729e-400c-8d51-ff464b2b9675 | var | 20 | var-lv | +--------------------------------------+-----------+-------------+----------------+
Note that the docker and kubelet filesystems are 30 GiB and 10 GiB respectively.
The syntax of the host-fs-list command is:
host-fs-list <hostname_or_id>
<hostname_or_id> is the host name or UUID of the host.
Optionally, list details about a filesystem.
The syntax of the host-fs-show command is:
host-fs-show <hostname_or_id> <fs_name_or_uuid>
- <hostname_or_id>
The host name or UUID of the host.
- <fs_name_or_uuid>
The name or UUID of the file system.
~(keystone_admin)$ system host-fs-show controller-1 d57652a1-af17-47b8-b941-9ebfeee4a56f +----------------+--------------------------------------+ | Property | Value | +----------------+--------------------------------------+ | uuid | d57652a1-af17-47b8-b941-9ebfeee4a56f | | name | docker | | size | 30 | | logical_volume | docker-lv | | created_at | 2019-08-08T03:05:25.341669+00:00 | | updated_at | None | +----------------+--------------------------------------+
Modify the sizes of the docker and kubelet filesystems.
The syntax of the host-fs-modify command is:
host-fs-modify <hostname_or_id> <fs_name>=<size> [<fs_name>=<size>]
- <hostname_or_id>
The host name or UUID of the node.
- <fs_name>
The name of the filesystem.
- <size>
The new size of the filesystem, in GiB.
The following command changes the size of the docker filesystem to 31 GiB and that of the kubelet filesystem to 11 GiB.
~(keystone_admin)$ system host-fs-modify controller-1 docker=31 kubelet=11 +--------------------------------------+---------+-------------+----------------+ | UUID | FS Name | Size in GiB | Logical Volume | +--------------------------------------+---------+-------------+----------------+ | a4d83571-a555-4ba5-999f-af709206ae35 | backup | 25 | backup-lv | | d57652a1-af17-47b8-b941-9ebfeee4a56f | docker | 31 | docker-lv | | a84374c6-8917-4db5-bd34-2a8d244f2bf6 | kubelet | 11 | kubelet-lv | | 3fe89994-a5b9-4612-8321-443fc9d2fba7 | log | 8 | log-lv | | 2c026d6f-5c03-4135-abca-c0047aa7f5a6 | scratch | 8 | scratch-lv | | 0215defd-ded2-46df-9338-1d39e7648028 | root | 20 | root-lv | | c987d5d7-729e-400c-8d51-ff464b2b9675 | var | 20 | var-lv | +--------------------------------------+---------+-------------+----------------+