.. xuj1552678789246
.. _increase-controller-filesystem-storage-allotments-using-the-cli:
===============================================================
Increase Controller Filesystem Storage Allotments Using the CLI
===============================================================
You can use the |CLI| to list or increase the allotments for controller-based
storage at any time after installation.
.. rubric:: |context|
For more information about increasing filesystem allotments, or to use the
Horizon Web interface, see :ref:`Increase Controller Filesystem Storage
Allotments Using Horizon
<increase-controller-filesystem-storage-allotments-using-horizon>`.
.. caution::
Decreasing the filesystem size is not supported, and can result in
synchronization failures requiring system re-installation. Do not
attempt to decrease the size of the filesystem.
.. rubric:: |prereq|
Before proceeding, review the prerequisites given for :ref:`Increase
Controller Filesystem Storage Allotments Using Horizon
<increase-controller-filesystem-storage-allotments-using-horizon>`.
.. rubric:: |proc|
#. To review the existing host filesystems on a controller, use the
:command:`system host-fs-list <hostname>` command. For example:
.. code-block:: none
~(keystone_admin)$ system host-fs-list controller-0
+--------------------------------------+---------+-------------+----------------+
| UUID | FS Name | Size in GiB | Logical Volume |
+--------------------------------------+---------+-------------+----------------+
| 1875cd0e-aee2-4646-b397-298348acf424 | backup | 25 | backup-lv |
| cee6df98-9222-4594-b25f-469c625c5975 | docker | 60 | docker-lv |
| c53be87c-bbcf-4d11-8cf5-93f350f8d027 | kubelet | 10 | kubelet-lv |
| efdddf39-7a0d-48f1-a14d-fc734e5b8675 | scratch | 16 | scratch-lv |
| 3fe89994-a5b9-4612-8321-443fc9d2fba7 | log | 8 | log-lv |
| 0215defd-ded2-46df-9338-1d39e7648028 | root | 20 | root-lv |
| c987d5d7-729e-400c-8d51-ff464b2b9675 | var | 20 | var-lv |
+--------------------------------------+---------+-------------+----------------+
#. To review the existing controller filesystems that are synchronized between
controllers on two controller (|AIO-DX| and standard) systems, use the
:command:`system controllerfs-list` command.
.. code-block:: none
~(keystone_admin)$ system controllerfs-list
+-------------+-------------+------+--------------+------------+-----------+
| UUID | FS Name | Size | Logical | Replicated | State |
| | | in | Volume | | |
| | | GiB | | | |
| | | | | | |
+-------------+-------------+------+--------------+------------+-----------+
| aa9c7eab... | database | 10 | pgsql-lv | True | available |
| | | | | | |
| 173cbb02... | docker- | 16 | docker | | |
| | distribution| | distribution | True | available |
| | | |-lv | | |
| | | | | | |
| 448f77b9... | etcd | 5 | etcd-lv | True | available |
| | | | | | |
| 9eadf06a... | extension | 1 | extension-lv | True | available |
| | | | | | |
| afcb9f0e... | platform | 10 | platform-lv | True | available |
+-------------+-------------+------+--------------+------------+-----------+
.. note::
The values shown by :command:`system controllerfs-list` are not
adjusted for space used by the filesystem, and therefore may not
agree with the output of the Linux :command:`df` command. Also,
they are rounded compared to the :command:`df` output.
#. Modify, for example, the docker host filesystem size on controller-0.
.. code-block:: none
~(keystone_admin)$ system host-fs-modify controller-0 docker=60
+--------------------------------------+---------+-------------+----------------+
| UUID | FS Name | Size in GiB | Logical Volume |
+--------------------------------------+---------+-------------+----------------+
| 910844e9-f763-4426-8b92-9b44693ee8a7 | backup | 35 | backup-lv |
| 3bb38311-00b3-49c7-8b53-9178aeef2233 | docker | 60 | docker-lv |
| 44dd07e8-b4bf-4751-b76b-dd96b5bea9cc | kubelet | 10 | kubelet-lv |
| b2ab5c8e-a26a-4460-b960-552c636cfe43 | scratch | 16 | scratch-lv |
| 3fe89994-a5b9-4612-8321-443fc9d2fba7 | log | 8 | log-lv |
| 0215defd-ded2-46df-9338-1d39e7648028 | root | 20 | root-lv |
| c987d5d7-729e-400c-8d51-ff464b2b9675 | var | 20 | var-lv |
+--------------------------------------+---------+-------------+----------------+
.. note::
When you use the :command:`system host-fs-modify` to increase
the filesystem size, you may not have enough space in the |LVG| due to
additional services running on the controller host. To increase the size
from the default size of 30G to 60G for example, the docker filesystem,
see below:
.. code-block:: bash
# check existing size of docker fs
system host-fs-list controller-0
# check available space (Avail Size (GiB)) in cgts-vg LVG where docker fs is located
system host-lvg-list controller-0
# if existing docker fs size + cgts-vg available space is less than
# 80G, you will need to add a new disk partition to cgts-vg.
# There must be at least 20GB of available space after the docker
# filesystem is increased.
# Assuming you have unused space on ROOT DISK, add partition to ROOT DISK.
# ( if not use another unused disk )
# Get device path of ROOT DISK
system host-show controller-0 --nowrap | fgrep rootfs
# Get UUID of ROOT DISK by listing disks
system host-disk-list controller-0
# Create new PARTITION on ROOT DISK, and take note of new partition's 'uuid' in response
# Use a partition size such that you'll be able to increase docker fs size from 30G to 60G
PARTITION_SIZE=30
system hostdisk-partition-add -t lvm_phys_vol controller-0 <root-disk-uuid> ${PARTITION_SIZE}
# Add new partition to 'cgts-vg' local volume group
system host-pv-add controller-0 cgts-vg <NEW_PARTITION_UUID>
sleep 2 # wait for partition to be added
# Increase docker filesystem to 60G
system host-fs-modify controller-0 docker=60
#. Modify, for example, the extensions controller filesystem on the
controller(s).
.. code-block:: none
~(keystone_admin)]$ system controllerfs-modify extension=2
+--------------------------------------+---------------------+---------+-----------------------+------------+------------------------------+
| UUID | FS Name | Size in | Logical Volume | Replicated | State |
| | | GiB | | | |
+--------------------------------------+---------------------+---------+-----------------------+------------+------------------------------+
| 176b8e7b-e38c-4829-b16f-023465360e52 | extension | 2 | extension-lv | True | drbd_fs_resizing_in_progress |
| 6efb7069-6eef-49d1-aaca-771164e129f3 | docker-distribution | 16 | dockerdistribution-lv | True | available |
| a0b10f6d-21f6-4e3c-a0f7-166f96672d93 | database | 10 | pgsql-lv | True | available |
| db43909e-8389-4372-8914-4018166f5eca | etcd | 5 | etcd-lv | True | available |
| f9b55e7c-468e-46bd-8ae7-5ca817e3e250 | platform | 10 | platform-lv | True | available |
+--------------------------------------+---------------------+---------+-----------------------+------------+------------------------------+