What are the advantages of cloud hosting?

Question

Cloud computing

what are the advantages of cloud hosting?
please explain why such a craving to spend extra money on all sorts of s3, ec2, gap, heroku, etc.

a good Dedik (8 cores, 32GB, 100MB anlim, 2x3TB) in Germany costs less than 100 tanks per month, the same ec2 on a processor will eat more than $500, and how much traffic on a 100Mb channel can I pump, I don’t even consider

the problem of raising an instance? so write a shell script once (or even easier on fabric ) and the instance rises in less than a minute, the provider's support warns about the hardware (I'm given access to the new hardware within a couple of hours)

is the problem in load peaks? for the same money you can take 20-30 times more power and not notice the peaks at all

Answer 1

Cloud hosting is essentially needed only if your load is floating. They say there is a normal load, which is small, and peaks. For example during holidays or weekends. On normal days, your 8-core server will be idle, and only at peaks will it work to its fullest. But you will still pay the same price. And in the clouds, pricing depends on the resources spent. Under certain conditions, this can give a pretty good win. Essentially more flexible pricing.
Why do people overpay? With certain requests, people save. Another thing is that clouds are now in vogue, and the choice of a cloud is not always supported by common sense.

Answer 2

I understand that if the resources of the cloud were endless, I set it up once and everything grows in breadth, then it would make sense to overpay
, and so, this is the same Dedik, with the same resource restrictions, only 20 times more expensive and spins in to a distributed virtual machine (VM) instead of a regular VM
, it somehow reminds me of a fairy tale about porridge from an ax, when it seems like it’s free, but in the end it’s 20 times more expensive

Answer 3

It's cheap.

Answer 4

Cloud hosting is good when your application is designed for horizontal extensibility. On the one hand, you can run one server with the characteristics of 8 cores, 32 GB of memory ... or 4 servers, 2 cores and 2 GB of memory each. And if one of these instances at peak load, or simply due to some programmer's mistake, falls and becomes unavailable, the rest of the servers will still be available. And due to the synchronization of sessions, the client's data will not be lost, he will not even notice it.
Naturally, such things can be done independently, with the help of several servers or virtual machines (not without an experienced admin, of course), but you will have to configure it yourself, increasing and decreasing the number of instances as needed.

Answer 5

S3 is very beneficial for a small data warehouse with high persistence and availability. I have been keeping several gigs for many years. data. Safety and availability is very high. The cost is less than 10 bucks a month.
You can post a public link / picture on Habré or anywhere, and not be afraid that they will block you for traffic (like DropBox).
Similarly, you can use S3 + CloudFront to create a static html site. In maintenance - a penny, and the availability and reliability of the highest (even one server is not able to provide this).
That is, if there is no need to keep the server for 100 bucks, the same (even higher) reliability can be achieved by paying a penny. Savings - $ 1100 per year is obtained.

Answer 6

I like the following:
- Independence, no need to wait for the actions of outsiders and dependence on them.
- Easy to take snapshots of machines and create clones.
— Control of the placement of machines, including in different accessibility zones.
- You can instantly mount any disks on any machines (within the zone).
- Ability to temporarily increase capacity and pay only for hours / days.
- Low starting price for a quite comfortable configuration (micro with 600MB)
- Reliability (relative to the iron screws that regularly died on the dedicated servers)
- Elastic IP

Answer 7

The speed of deploying additional instances in the clouds is incredibly high (seconds) ... compared to regular hosting (hours and days) ... but here we are talking about billing and other organizational issues. If your configuration is stable and modification (expansion and downgrade, which is also not unimportant) is not spontaneous, then it’s better not to mess with the clouds, it’s very expensive.
ps no one bothers to combine both approaches, let the main load be kept by cheap and inflexible solutions, and prepare the infrastructure for migration or expansion through the clouds for major... especially when it is needed for a few hours / day, cloud service tariffs become very tasty.

Answer 8

Reliability and duplication are the main advantages. Renting a Dedik from the Germans is a lottery that taught me how to make backups a couple of times in 3 years.