Multi-day planned downtime for maintenance is even fairly common in Big Old Companies, especially for customer- and employee-facing systems. They just turn the

Multi-day planned downtime for maintenance is even fairly common in Big Old Companies, especially for customer- and employee-facing systems. They just turn the thing off for a weekend, warn users in advance, and that's that. My bank's online banking seems to use that strategy. A few times a year, it tells me: sorry, but due to planned maintenance you'll have to check back Sunday evening. It's kind of surprising to me every time, but seems to be common. Some big companies do it with employee infrastructure like corporate email or network drives too. Some kind of system migration (or even physical server move) will mean on a random Saturday there's no email or file access. Announced in advance, sure, but it's still down for the day. Verizon telling you that some random servers are going to be down for two days admittedly might be worse than taking one of your own systems down for a maintenance window is, especially if you didn't expect in advance that such a thing was going to be a possibility, and made the mistake of putting really-can't-be-down stuff on Verizon's cloud.