docs/doc/source/storage/kubernetes/increase-controller-filesystem-storage-allotments-using-the-cli.rst
Ron Stone 41cffc591b Upgrade system output updates (r8, dsR8)
Various commands have updated parameters and output. This review captures changes.
Note that not all changed command output is used in the documentation.

Replaces: https://review.opendev.org/c/starlingx/docs/+/880164

Signed-off-by: Ron Stone <ronald.stone@windriver.com>
Change-Id: Ia7be8d6ee7aea416419a5fc57deb717d833a3968
2023-05-10 20:40:17 +00:00

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8.4 KiB
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.. 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 |
+--------------------------------------+---------+-------------+----------------+
#. 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 |
+--------------------------------------+---------+-------------+----------------+
.. 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 |
+--------------------------------------+---------------------+---------+-----------------------+------------+------------------------------+