Disable cleanup for specific disk(s)

[lowerends]

Hi,

I've used the example from #974 to avoid the cleanup to be executed on a specific disk. This works, in that the backups are not deleted on the desired disk, but I noticed that the cleanup function is still executed and requesting data from that disk. Is there any way to avoid that the cleanup function is executed on specific disks and thus not requesting data from that disk? Maybe similar to the disks parameter in the monitor_backups configuration setting?

Thanks!