Amazon ElastiCache

The book I read to research this post was Amazon ElastiCache User Guide which is a very good book which I downloaded for free from kindle. ElastiCache is online memory cache and is useful if you have a network server which does memory intensive jobs. It's obviously a lot faster than hard drive memory storage and works with Simple Notification Service to keep you informed of what is going on. They handle things like the patching as far as the cloud service is concerned. If for example you need 20 Gb of cache you might elect to have 3 lots of 7.1 GB which more or less equates to the same thing. It also works with several computer languages among them ruby, java & .net. In this way you can automate processes you want. Also you can specify when you want Amazon to do their maintenance, this will generally be 1 hour per week and will ideally be when usage is low. If you don't specify a time Amazon will choose a random time. Finally you can use a command line and dashboard to operate this service.