Is3340 Unit 2 Data Storage Essay

1944 Words4 Pages

DISASTER RECOVERY EXAM 2 SPRING 2015
Question 1
a) Backup options
There are several options available to an organization or an individual where data may be stored as a backup, the method storage is chosen depending on data size, associated cost and the recovery method. One can choose either online backup mainly cloud based systems, hard disk, DVD/CDs and magnetic tape. Each of these media of storage has its advantages and disadvantages as explained below:
Online backup: this is a type of storage that that is classified as offsite storage and has been made possible by the interconnectivity of computers via the internet, in this type of storage data is usually uploaded in a cloud based server and can be accessed anywhere as long as one has an …show more content…

In this method there are several ways in which it can be done depending on the software and hardware capabilities at the disposal of the organization, the easiest type of data backup is through disk partition where data available in one partition can be stored in another partition of the same hard disk, another method which is easier is by use of external hard disk systems whereby data backup can be done at the close of business either daily or at some scheduled time when the machines are not very busy. An alternative method of data backup using hard disk is by use of RAID if the computer hardware and software can allow this mode of data backup. Advantages of hard disk storage includes the following: Lower Cost – the cost of purchasing external or any kind of hard drive has been on the downward trend for quite some time and therefore this method of data backup in terms of acquisition is the cheapest; Quicker File Transfer – New technology and USB 3.0’s high transfer speed enable your files to move around quickly. Whether it’s your HD video collection you want to back up or a huge number of spreadsheets, rest assured that your files will be transferred within hours; One Time Cost – If you’re on a budget, hard drives can be a wise choice since you only have to pay once for huge amounts of data. …show more content…

The advantage of this model is that the time lag after disaster declaration to full recovery after disaster occurrence is very short, while the main disadvantage are cost associated with contracting or acquisition of duplicate facilities.
Warm backup site: in a warm backup site, this is more a hardware storage facility whereby nearly everything available in the primary data center can also be found there. advantages of this system is that restoration to full working capacity can be done in a reasonable time after disaster, while the shortcomings of this method is that cost of maintaining equivalent hardware to that at the main data center and keeping it fully updated at all times.
Cold backup site: this is a model whereby an organization leases another facility for its operations immediately after disaster has occurred and then organize for new hardware’s in order to continue with its normal business operation. The advantages of this method is minimal cost since expenses are incurred only when disaster occurs, while itd disadvantages are there will be delayed full recovery after disaster since the required resources are difficult to source and configure everything to what was there before the disaster took

More about Is3340 Unit 2 Data Storage Essay

Open Document