[SOLVED] LVM Thin-pool on new node

[itsthejb]

Hi everyone,

Merry Xmas! I hope someone can help with the following basic problem:

I have just created my first cluster by adding a single new node. I would now like to set up the internal SSD in order to transfer some VMs over to it. However, it's not working like the master node.

fdisk -l:

Disk /dev/nvme0n1: 113 GiB, 121332826112 bytes, 29622272 sectors
Disk model: APPLE SSD AP0128M                      
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: BD23D276-B030-4BAB-9EDA-47183A884C5E

Device          Start      End  Sectors  Size Type
/dev/nvme0n1p1    256   131327   131072  512M EFI System
/dev/nvme0n1p2 131328   256255   124928  488M Linux filesystem
/dev/nvme0n1p3 256256 29622015 29365760  112G Linux filesystem


Disk /dev/mapper/nvme0n1p3_crypt: 112.01 GiB, 120265375744 bytes, 29361664 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/mapper/pve--mac--vg-root: 8 GiB, 8589934592 bytes, 2097152 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/mapper/pve--mac--vg-swap_1: 980 MiB, 1027604480 bytes, 250880 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes


Disk /dev/mapper/pve--mac--vg-pve: 103.05 GiB, 110645739520 bytes, 27013120 sectors
Units: sectors of 1 * 4096 = 4096 bytes
Sector size (logical/physical): 4096 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

I created the thin pool /dev/mapper/pve--mac--vg-pve and added it to the storage config:

lvmthin: local-lvm-mac
        thinpool pve
        vgname pve-mac-vg
        content rootdir,images
        nodes pve-mac

However, in the web ui it's isn't found (No thin-pool found). This works just fine for the master node. So right now, I'm wondering if I can use this configuration at all; from reading around, it _seems like_ I have to dedicated an entire drive (or partition?) for storage. Then I can set up everything in the web-ui, possibly starting with creating a new volume group.

Is this correct? Ideally I'd like to just use the single LVM volume group I already have. However, if it really isn't possible then I suppose I could just resize down the current volume group to just contain the root volume and create a separate volume group for the VM storage. That would just be inconvenient to set up since I'd need to reboot the node in system rescue.

Hope someone can advise! Many thanks

 

[itsthejb]

This can be deleted - I solved it myself in the meantime. Thanks!