I need LVM to specify a SSD or HDD type disk

[dxygit1]

Does the openlocal lvm type support specifying mediaType I need LVM to specify a SSD or HDD type disk

for example

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: lvm-xfs-ssd
{{ include "local.labels" . | indent 2 }}
provisioner: {{ .Values.driver }}
parameters:
  volumeType: "LVM"
  csi.storage.k8s.io/fstype: xfs
  mediaType: ssd
reclaimPolicy: Delete
volumeBindingMode: WaitForFirstConsumer
allowVolumeExpansion: true

[peter-wangxu]

LVM can combine both SSD or HDD disk into one volume group, how do you think this scinario?

say, how you konw the VG is SSD or HDD or mixed?

[dxygit1]

Add a new storage class binding to the corresponding volume group lvm-xfs-ssd. Specify that the volume group consists entirely of SSD disks. Is this feasible?

[dxygit1]

Would it be possible to introduce a flexible approach where any storage class starting with 'lvm-xxx' follows the same logic of binding to a volume group? I'm defining two storage classes: lvm-xxx-ssd and lvm-xxx-hdd, which will bind to different volume groups. Do you think this is feasible

[peter-wangxu]

sure，but we need to a rule to detect the lvm type, eg, open-local needs to detect and report the vg type in node local storage CR

[dxygit1]

Sure, can also add a parameter similar to mediaType to specify the name of the VG. Create the corresponding VG name in NLSC.

[peter-wangxu]

It's reasonable to add this feature via some coding change,do you have any further thoughts on this implementation?

[dxygit1]

I'm not very familiar with writing Go code at the moment and don't have many ideas for implementing code.

[dxygit1]

Hello, do you have time to implement this requirement?