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Also to note. &nbsp;<br />
Conversely, someone may ask: What DOESN&quot;T scale vertically? &nbsp; <br />
Some vendors may say their app can scale vertically, but if that translates to just RAM/CPU additions, then who can't do that?<br />
<br />
Answer: &nbsp;Single threaded 32bit apps. &nbsp; You can add 16G ram, they can't reach it. &nbsp;You can add 16CPUS, and they'll only keep 1 busy.<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; You MAY be able to run multiple copies on a single machine, but, that's basically a form of horizontal scaling. &nbsp;Without some way to distribute work to those other processes, they won't be kept busy either.<br />
<br />
Tom
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Hi. As regards the area of multi-tier architecture and scalability, what does vertical scaling mean? I read definitions such as 'Vertical scaling - services are scaled within the system', but this makes no sense to me.<br />
<br />
I can see the sense in horizontal scaling, because it happens within the same tier and flexible replication can take place. But form what I read about vertical scaling I don't understand the benefits, nor really what happens
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Hi. As regards the area of multi-tier architecture and scalability, what does vertical scaling mean? I read definitions such as 'Vertical scaling - services are scaled within the system', but this makes no sense to me.

I can see the sense in horizontal scaling, because it happens within the same tier and flexible replication can take place. But form what I read about vertical scaling I don't understand the benefits, nor really what happens

What exactly is vertical scalability?

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Cloud Computing

Servers are computing devices that are similar to desktop computers in that they have the same basic components, but are significantly different in size, configuration and purpose. Servers are usually accessed over a network, and many run unattended, without a computer monitor, input device, audio hardware or USB interfaces. Many servers do not have a graphical user interface (GUI), and are configured and managed remotely. Servers typically include hardware redundancy such as dual power supplies, RAID disk systems, and ECC memory, along with extensive pre-boot memory testing and verification. Critical components might be hot swappable, and to guard against overheating, servers might have more powerful fans or use water cooling.

Server Hardware

A web server refers to the software that helps to deliver web content that can be accessed either through the Internet or through an intranet. The primary function of a web server is to store, process and deliver web pages to clients. The communication between client and server takes place using the Hypertext Transfer Protocol (HTTP). The most common use of web servers is to host websites, but there are other uses such as gaming, data storage, running enterprise applications, handling email, FTP, etc.