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by zeveb 2200 days ago
Yes, hardware as a service will always be much more expensive than hardware you own. But it may be less expensive than the team you will require to run that hardware at an acceptable service level. It very likely will be less expensive than the opportunity cost of running your own hardware.

As an example of the latter bit, if you are running your own hardware and need to add another host and you do not have a spare lying around, then you need to order one. It has to be shipped. Someone has to unpack it. Someone has to make sure that the data centre has sufficient power. Someone has to install it, its power and its network cables. Each of these steps takes time, but also each step is an opportunity for friction.

By contrast, with a service, you would just add a new host. Five minutes later you are up and running. That gives you an operational nimbleness that you wouldn't otherwise have had.

4 comments

I love how there's this myth that servers and services just blow up every 10 minutes 24/7 and unless you have a legion of ops personnel you're going to get hours of downtime each year.

Servers, for the most part, just work. In DC climate-controlled environments, hardware failures is exceedingly rare. Apart from harddrives, most hardware will happily tick along for a decade, if not longer.

Sane production-grade OSes (read: not Ubuntu) will also happily run for literal years with zero human intervention. For obvious reasons, it's a bad idea to not patch your systems, but things will continue to "just work" pretty much forever unless you're running really shitty code.

For renting vs buying servers, there's upsides and downsides. Buying gear is far far cheaper if you plan to be around for more than a year, but renting dedicated servers gives you a lot more flexibility -- to provision a new server, you hit a button in their online panel, wait 15 minutes, then let your deployment strategy take care of the rest.

I find it almost mind-boggling that AWS and friends have convinced people that it's normal to spend ridiculous amounts of money for fairly "meh" service specs in what's essentially VMs.

The points you make are fine but I think the experience becomes more painful linearly with the number of servers you manage, since you're N times more likely to see something happen that takes down a server. It just happens more frequently. At some point that becomes often enough that you don't want to deal with it anymore.
I don't think you understand the sheer scale you need to be experiencing a failure more often than once a month. By my anecdotal experience you'd need at least 1k servers for that to happen... and if your company is big enough for $2MM capex for servers alone you can handle $100 remote hands and 30 minutes of engineer time.

Not to mention that at that scale you have plenty of redundancy and, if your ops team knows what they're doing, automagic failover / HA. Anything that happens can easily "wait till Monday", no need for 24/7 anything.

If it's often enough to be noticeable, your scale is large enough to pay someone to be ops full time.
That example is not realistic. You rent dedicated servers from a provider that will always have extra hardware at hand, and handle all of those steps; you don't rent hardware yourself and run it in your basement :)
What you just described is a kind of hardware service!
Or you rent managed servers or colo space from one of the many hosting providers that also offers cloud services, and pick and choose. That lets you migrate your base load to colo or managed servers over time, while you still have the nimbleness of being able to scale up and down dynamically if you want or need to.

And my experience from providing devops services to clients on a contract basis is that the clients who use cloud services tends to need more, not less, devops assistance.

Certainly hardly anyone should be physically managing their servers. The relevant comparison is between getting 1GB RAM in the form of a $50/month Heroku dyno and getting it with a $2/month VPS (actually with Hetzner that will get you 2GB, they don't go below 1GB).