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Added new module for removing device and device classes

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bjahagir-OpenShift
2026-01-22 20:52:07 +05:30
committed by openshift-cherrypick-robot
parent 8696e48f73
commit 0ed3621142
3 changed files with 44 additions and 1 deletions
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2
modules/lvms-about-adding-devices-to-a-vg.adoc
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@@ -10,7 +10,7 @@ The `deviceSelector` field in the `LVMCluster` CR contains the configuration to
You can specify the device paths in the `deviceSelector.paths` field, the `deviceSelector.optionalPaths` field, or both. If you do not specify the device paths in both the `deviceSelector.paths` field and the `deviceSelector.optionalPaths` field, {lvms} adds the supported unused devices to the volume group (VG).
[WARNING]
[IMPORTANT]
====
It is recommended to avoid referencing disks using symbolic naming, such as `/dev/sdX`, as these names may change across reboots within RHCOS. Instead, you must use stable naming schemes, such as `/dev/disk/by-path/` or `/dev/disk/by-id/`, to ensure consistent disk identification.

40
modules/lvms-about-removing-devices-deviceclasses-from-a-vg.adoc Normal file
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@@ -0,0 +1,40 @@
// Module included in the following assemblies:
//
// storage/persistent_storage_local/persistent-storage-using-lvms.adoc
:_mod-docs-content-type: CONCEPT
[id="about-removing-devices-deviceclasses-from-a-vg_{context}"]
= About removing devices and device classes from a volume group
[role="_abstract"]
The `deviceSelector` field in the `LVMCluster` CR contains the configuration to specify the paths to the devices that you can remove from the Logical Volume Manager (LVM) volume group.
== Removing the device paths in the deviceSelector.paths field
You can remove the device paths in the `deviceSelector.paths` field.
[IMPORTANT]
====
Ensure that the following criteria are met before removing device paths:
* The device that you want to remove is empty. You can use the `pvdisplay` command to see attributes of physical volumes (PVs) used in LVM.
* At least one additional device is specified in the `deviceSelector.paths` field.
====
== Removing the deviceClass from the LVMCluster
You can also remove the `deviceClass` object from the `LVMCluster` resource. For device class deletion, there is no need to delete `deviceSelector.paths` object.
[IMPORTANT]
====
Ensure that the following criteria are met before removing a device class:
* The `deviceClasses.default` field is set to `false`.
* The disks specified in the `deviceSelector.paths` field are empty.
* At least one additional device class is specified in the `storage` field.
====

3
storage/persistent_storage_local/persistent-storage-using-lvms.adoc
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@@ -85,6 +85,9 @@ include::modules/lvms-about-adding-devices-to-a-vg.adoc[leveloffset=+2]
* xref:../../storage/persistent_storage_local/persistent-storage-using-lvms.adoc#lvms-unsupported-devices_logical-volume-manager-storage[Devices not supported by {lvms}]
// About removing devices and device classes from a volume group
include::modules/lvms-about-removing-devices-deviceclasses-from-a-vg.adoc[leveloffset=+2]
// Devices not supported by LVMS
include::modules/lvms-unsupported-devices.adoc[leveloffset=+2]