Welcome to fdisk (util-linux 2.38.1). Changes will remain in memory only, until you decide to write them. Be careful before using the write command.
Command (m for help): g Created a new GPT disklabel (GUID: 89644091-xxxx-xxxx-xxxx-F1651C2CDBBA).
Command (m for help): n Partition number (1-128, default 1): First sector (2048-7814037134, default 2048): Last sector, +/-sectors or +/-size{K,M,G,T,P} (2048-7814037134, default 7814035455):
Created a new partition 1 of type 'Linux filesystem' and of size 3.6 TiB.
Command (m for help): w The partition table has been altered. Calling ioctl() to re-read partition table. Syncing disks.
root@dell_t30:~# vgdisplay --- Volume group --- VG Name datastore0 System ID Format lvm2 Metadata Areas 3 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 1 Open LV 1 Max PV 0 Cur PV 3 Act PV 3 VG Size <8.19 TiB PE Size 4.00 MiB Total PE 2146188 Alloc PE / Size 38400 / 150.00 GiB Free PE / Size 2107788 / 8.04 TiB