Hi everyone, I wanted to reach out with a question regarding how to compute the exact usable capacity of a volume group, based on the disks that will be used, without actually creating the VG or physical volumes.
Specifically, I am looking for a method or tool that can help me determine the capacity accurately beforehand. For example, I have a VG with a single PV with a PE size of 4194304 B. We have one disk with 1920383410176 B, which equals 457855.084 PE. The capacity of the VG with this PV after creation is 1920378863616 B, equaling 457854 PE. Is it always true that the total PEs in the VG will be the disk capacity divided by PE size, minus one? Or are there other factors or metadata overheads I should consider? Any guidance or suggestions would be greatly appreciated. Thank you for your time and assistance! Best regards, Joshua Long
