Add Storage

Storage.md

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+The host is using [LVM](https://wiki.archlinux.org/title/LVM).
+
+Useful commands to check the current status:
+
+```bash
+sudo pvs # create new hard drive
+sudo pvcreate /dev/sda1
+
+sudo lvs # similar to pvs
+sudo vgcreate group_name /dev/sda1
+
+sudo lvcreate -L 30G group_name -n lv_name
+sudo mkfs.ext4 /dev/group_name/volume_name
+
+lsblk
+```
+
+Then, create a new directory in `/mnt`, load and also modify `/etc/fstab`.