How to use disk space in proxmox?

Question

Debian

Hello!
I will describe my situation. I installed proxmox VE 3.1 on a 1TB hard drive. Installed from a CD with a standard installer. Those. installation with LVM, etc.
Accordingly, I made two machines of 100GB each, one - 45GB, one more - 8GB. In addition, I made a copy of one of the machines and turned it into a Template (another 100GB). Haven't made backups yet. Total: 3*100+45+8=353GB.
In addition, several ISO images were uploaded to the same storage (local) with a total volume of approximately 13.5 GB.
Storage 'local' on 'proxmox':
Size 783.52GB
Used 47.19GB
Avail 736.36GB
Those. it seems like there is a place, but when I tried to create another machine with a 32GB disk, I got an error TASK ERROR: create failed - lvcreate 'pve/pve-vm-105' error: Volume group "pve" has insufficient free space (4095 extents) : 8192 required.
After a day of searching for the reasons for this behavior, I have already come to the conclusion that this is due to the fact that the proxmox installer creates two logical partitions in LVM. And therefore, only less than half of the disk space is available for use.
But now I tried to create the machine again and everything worked out. I tried another one and it worked again. I tried to create a machine in 100GB. And again success. What happened yesterday then? And which guess is correct: 1) Proxmox allocates less than half of the disk for storage, or 2) Did it just crash yesterday?
The question is very relevant for me, because. I'm going to replace the 1TB disk in the server with a hardware RAID10 on 4 Raptors of 300GB each. If I have access to almost 600GB for machines, that's fine. But if proxmox leaves me only 300GB from the array, this is very little.

Answer 1

You just had to see what's going on in your lvm.
And so maybe you have two stores, and not one?