We've recently set our VBA as restore only for backups that are older than several months.
Since there is no backup activity or change on the VBA, is it ok to run the ebr-checkpoint backup to disk just 1x weekly rather than daily? I don't see how it could hurt.
To go even further, what about stopping the VBA services, powering off the VM/VBA then just powering it up for when the occasional restore comes up? As long as we have a working backup copy of the VBA we can always restore and go back to that if necessary, right?