Which command would be used to recreate a volume group if physical volumes are available?

The command used to recreate a volume group when physical volumes are available is vgcreate. This command is specifically designed for managing volume groups in the Logical Volume Management (LVM) system on Linux.

When you issue the vgcreate command, it allows you to create a new volume group by combining one or more physical volumes that have already been initialized for use with LVM. This means that the existing physical volumes must be prepared and recognized by the system, usually through a previous use of the pvcreate command, which sets them up for LVM.

Choosing vgcreate is essential because it directly fulfills the requirement of making a volume group, while the other commands have different purposes within LVM management. For instance, lvcreate is used for creating logical volumes within a volume group, pvcreate initializes a physical volume before it can be added to a volume group, and xfs_admin is not related to LVM management at all; rather, it is used for managing XFS file systems.