Resiliency 3.4 Flashcards
In a […] configuration, everything is always on and always available, regardless of outages. Very costly as you have to think about power, high quality server components, etc.
Ex:
Active / Active servers
High Availability
To improve resiliency, you can use […], which has two or more servers working together, effectively making it one server. They are usually the same OS
Ex:
Multiple servers appear and operate as a single server
Server Clustering
Similar to server clustering, […] distributes the […] across multiple servers. These servers are often completely unaware of one another. They can be different OS
Load Balancing
Load
A […] is used in the event of a disaster, and all your data is synced to it so you can keep on running.
Recovery Site
One type of recovery site, called a […], is an exact replica of your original data center. All data is duplicated, all equipment is duplicated, and it is at the ready to be used in the event of a disaster.
Hot Site
One type of recovery site, called a […], has no hardware and is usually just an empty building ready to be populated with hardware / data in the event of a disaster.
Cold Site
One type of recovery site, called a […],
Warm Site