How to create a new partition for data

[nicola_s]

Hello,
during the OS installation I left Proxmox to take the entire size of the disk, so that my current disk configuration is this one:

root@pve:~# fdisk -l
Disk /dev/nvme0n1: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: CT1000P3PSSD8                           
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 83993A65-528D-4E88-AA0F-039E6A43E8D5

Device           Start        End    Sectors   Size Type
/dev/nvme0n1p1      34       2047       2014  1007K BIOS boot
/dev/nvme0n1p2    2048    2099199    2097152     1G EFI System
/dev/nvme0n1p3 2099200 1953525134 1951425935 930.5G Linux LVM


Disk /dev/mapper/pve-swap: 8 GiB, 8589934592 bytes, 16777216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/pve-root: 96 GiB, 103079215104 bytes, 201326592 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/mapper/pve-vm--100--disk--0: 4 GiB, 4294967296 bytes, 8388608 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--101--disk--0: 3 GiB, 3221225472 bytes, 6291456 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--104--disk--0: 8 GiB, 8589934592 bytes, 16777216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--105--disk--0: 2 GiB, 2147483648 bytes, 4194304 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--103--disk--0: 4 GiB, 4294967296 bytes, 8388608 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--102--state--pre--update--core--2023--12--0: 8.49 GiB, 9114222592 bytes, 17801216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--102--state--pre--update--os--11--2: 8.49 GiB, 9114222592 bytes, 17801216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--102--state--post--update--11--2: 8.49 GiB, 9114222592 bytes, 17801216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--102--state--pre--update--core--2023--12--1: 8.49 GiB, 9114222592 bytes, 17801216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--102--state--post--update--core--2023--12--1: 8.49 GiB, 9114222592 bytes, 17801216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--102--state--pre--update--core--2023--12--3: 8.49 GiB, 9114222592 bytes, 17801216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes


Disk /dev/mapper/pve-vm--102--disk--1: 32 GiB, 34359738368 bytes, 67108864 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes
Disklabel type: gpt
Disk identifier: 9BF6C2A4-014A-49F4-A0E1-80E1C7895F72

Device                                   Start      End  Sectors  Size Type
/dev/mapper/pve-vm--102--disk--1-part1    2048    67583    65536   32M EFI System
/dev/mapper/pve-vm--102--disk--1-part2   67584   116735    49152   24M Linux filesystem
/dev/mapper/pve-vm--102--disk--1-part3  116736   641023   524288  256M Linux filesystem
/dev/mapper/pve-vm--102--disk--1-part4  641024   690175    49152   24M Linux filesystem
/dev/mapper/pve-vm--102--disk--1-part5  690176  1214463   524288  256M Linux filesystem
/dev/mapper/pve-vm--102--disk--1-part6 1214464  1230847    16384    8M Linux filesystem
/dev/mapper/pve-vm--102--disk--1-part7 1230848  1427455   196608   96M Linux filesystem
/dev/mapper/pve-vm--102--disk--1-part8 1427456 67108830 65681375 31.3G Linux filesystem


Disk /dev/mapper/pve-vm--102--disk--0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes

I'd like to create a new partition that I will use for backup files (I already have backup on externa NAS and in Cloud, but I'd like a copy of backups also local to expedite backup/restore process during configurations). This partition should be around 200GB and be mounted from the pve Node, so that I configure it as target for backup process.

I'm not sure if it is possible at all or it can be made from the web interface. I tried the Storage section but I didn't found
Do I need to manually resize the partition

/dev/nvme0n1p3 2099200 1953525134 1951425935 930.5G Linux LVM

or is there a more managed way.

In any case, if you explain how to do that without breaking the partitions map.

Thank you