04-storage

When configuring storage, it’s important to distinguish between Datacenter view and host view. For storage management, particularly for shared or external resources, the Datacenter view is the primary location.

Here are some key points regarding storage configuration within the Datacenter view:

• Thin Provisioning: This is a feature supported by local-lvm storage.
• Linux Containers: The rootfs for containers must reside on local-lvm.
• Linux VMs: For Linux VMs, ensure “discard” is enabled for their disks. You can manually trigger this with:

sudo fstrim -av

• Windows VMs: For Windows VMs, run the following command in an administrative PowerShell:

defrag C: /o

Storage Layout

For local storage, the default location is

/var/lib/vz

These are the files

./dump # VM/CT full backup
./images # VM/CT disks (.raw/.qcow2)
./template/cache # container templates
./template/iso # VM images

External Drives

Config file

/etc/pve/storage.cfg

SMB

Add smb to the ID when adding SMB/CIFS drives

For example, instead of laptopserver, use smb-laptopserver, so that the location will be ranked later than local and `local-lvm

When creating a SMB/CIFS drive, add a subdirectory e.g. /pve

• such that PVE related folders will be placed in ./pve/dump|image instead at the root folder of the SMB drive

Resize VM Disk

Increase

On the VM Hardware, Disk Action > Resize

• add the size increment

Shutdown and start the VM
On the guest machine (Linux)

sudo parted /dev/sda

• where sda is the physical disk
• use print to check partitions, e.g. Number and find the primary partition

resizepart 2 100%

• where 2 is the main primary partition number above

sudo resize2fs /dev/sda2

https://youtu.be/_u8qTN3cCnQ
If need to increase storage

• go to storage tab of datacenter
• delete the local-lvm
• lvremove /dev/pve/data
• lvresize -l +100%FREE /dev/pve/root
• `resize2fs /dev/mapper/pve-root