1.3.2 IT app development

private cloud storage security and scalability

Security : very secure as dedicated to one business 

Scalability : scalable but not instantly

private cloud storage cost

Cost : expensive

private cloud storage

dedicated to a single business, access could be via the public internet, managed by a third party provider who owns the hardware and provides cloud storage.

public cloud storage

 provided by a third-party provider who owns and manages the hardware, shared among multiple customers/businesses, accessed via public internet and requires users to authenticate.

public cloud storage security and scalability

Security : potentially less secure as its shared

Scalability : easy to scale

public cloud storage cost

Cost : cost effective

hybrid cloud storage

combines elements of both public and private, provides flexibility when large amounts of data need to be stored.

hybrid cloud storage security and scalability

Security : very secure as dedicated to one business

Scalability : usually easy to scale

hybrid cloud storage cost

Cost : depends on implementation

community cloud storage

shared by multiple businesses with similar requirements.

community cloud storage security and scalability

Security : tailored to type of business organisation

Scalability : limited scalability

community cloud storage cost

Cost : fairly cost effective

file storage

allows users to store files using a hierarchy of folders and files

file storage advantage

files can be shared with other users so easy collaboration.

file storage disadvantage

when trying to access large amounts of data it may be lower than other types of cloud storage

object storage

takes data and adds meta data and an identifier bundling it into an object these can locate and access each object.

advantage of object storage

highly scalable so more storage pace can be added easily

disadvantage of object storage

slower to update then other storage systems

block storage

splits up data into fixed sized blocks and adds a unique identifier before writing the data to the storage device.

block storage advantages

high levels of scalability.

block storage disadvantages

potentially more complex to set up then other types of storage which could increase costs.

elastic/scalable storage

cloud-based storage that can scale up or down depending on the need.

elastic/scalable storage advantages

cost effective as no need to pay for unused capacity.

elastic/scalable storage disadvantages

if the amount of storage changes infrequently its not the cheapest option.

cloud-based database services

provide managed database services in the cloud.

cloud-based database services advantages

databases can be easily and rapidly scaled up and down depending on requirements

cloud-based database services disadvantages

costs are usually higher.