difference between vgcfgbackup -u & vgcfgbackup ??

[BrickTop]

I have been advised to now run a vgcfgbackup...but do I use the -u option or just vgcfgbackup

I have looked at the man page but not really sure of the difference??

[Patrick Wallek]

vgcfgbackup, by default, requires ALL physical volumes (disks) that are part of a VG to be online and accessible.

'vgcfgbackup -u' requires only the NEW or recently added physical volumes to be online.

Essentially the '-u' option just UPDATES the existing vgcfgbackup files, whereas running vgcfgbackup without the '-u' option will create a completely new backup.

I would recommend running vgcfgbackup without the '-u' option.