Posted on 10th Mar 2016
You hard disk may not be the most expensive piece of device in you computer, but it is certainly the most valuable. Your hard disk is the device that stores every piece of data that you have saved knowingly of unknowingly. The reason why i say unknowingly because once you are plugged onto the internet, without tuning your browser settings, there are a pile of net trash that sits on your hard disk. Your hard disk is your permanent storage device and mostly resides within the computer device. There are however external hard disk that can be used as an external backup storage, we will get into that later. Many computer users don't realize the importance of hard disk and the word backup, those words should be married. Once your hard-disk goes bad and without backup, you may be sentencing yourself to do some very "hard data time." For some companies, losing data is just unheard of and is not an excuse and will never be. Large organizations have data centers and backup of those data centers in case of any form of disaster, whether it be man made or environmental.
Backup is the process of storing archive and current data on a separate media other than the media which is in the production environment. What this means that if you have a server or computer that users are storing data to, your copy of those user data should not reside on the server but elsewhere. You can keep those backup on Network Area Storage (N.A.S) and even have a replicated server to mitigate data loss and system downtime.
Different types of backups
Can you imagine owning a business and have over two hundred thousand customers with data stored on your computer. The data comprises of customers credit, contact information, past orders and present orders, and for some insane reason your system has crashed and the hard disk becomes useless. This will leave you into a temporary state of madness as you will lose customers and unable to profit from any sales that was in the pipeline. You would have to quickly try to get that hard disk to the "Harddisk Data Recovery Service" if you did not have a backup. If you had a backup you could simply replace the faulty drive and upload all necessary applications and data and viola! you re back in business.
So the draw backs of not having backup include:
Serial Advance Technology Attachment (SATA) | Serial Attached SCSI (SAS) |
---|---|
Two new serial interfaces to disk drives are replacing two venerable parallel interfaces. The Advanced Technology Attachment (IDE/ATA) interface will be succeeded by Serial ATA (SATA) | Small Computer System Interface (SCSI) will be replaced by Serial Attached SCSI (SAS |
Form Factor: 3.5" or 2.5" | Form Factor: 3.5" or 2.5" |
Speed 3.0 Ghz/s | Speed 3.0Ghz/s |
Revs Per Minute (Rpm) 7.2K | Rpm (Revs Per Minute) 7.2K |
Memory Cache 32Mb | Memory Cache 32Mb |