[pve-devel] [PATCH manager v4 1/3] api ceph osd: add OSD index, metadata and lv-info

[Alwin Antreich]

Hi,


December 6, 2022 4:47 PM, "Aaron Lauterer" <a.lauterer at proxmox.com> wrote:

> To get more details for a single OSD, we add two new endpoints:
> * nodes/{node}/ceph/osd/{osdid}/metadata
> * nodes/{node}/ceph/osd/{osdid}/lv-info
As an idea for a different name for lv-info, `nodes/{node}/ceph/osd/{osdid}/volume`? :)

> 
> The {osdid} endpoint itself gets a new GET handler to return the index.
> 
> The metadata one provides various metadata regarding the OSD.
> 
> Such as
> * process id
> * memory usage
> * info about devices used (bdev/block, db, wal)
> * size
> * disks used (sdX)
> ...
> * network addresses and ports used
> ...
> 
> Memory usage and PID are retrieved from systemd while the rest can be
> retrieved from the metadata provided by Ceph.
> 
> The second one (lv-info) returns the following infos for a logical
> volume:
> * creation time
> * lv name
> * lv path
> * lv size
> * lv uuid
> * vg name
> 
> Possible volumes are:
> * block (default value if not provided)
> * db
> * wal
> 
> 'ceph-volume' is used to gather the infos, except for the creation time
> of the LV which is retrieved via 'lvs'.
You could use lvs/vgs directly, the ceph osd relevant infos are in the lv_tags.

`lvs -o lv_all,vg_all --reportformat=json`
`vgs -o vg_all,pv_all --reportformat=json`

Why do you want to expose the lv-info?

Cheers,
Alwin