The exact monetary cost of work time and application downtime (if there even is any, maybe you just shift the load to the second box) varies greatly depending o

The exact monetary cost of work time and application downtime (if there even is any, maybe you just shift the load to the second box) varies greatly depending on the context in which the respective project is run (hobby vs. paid-for, I've had both types), which is why I offered time estimates for these costs instead of a monetary amount. The stated monetary amount of "zero" refers to the provider not charging me anything for the new disk itself and the work of changing the disk.