The first options available for data backup were to copy data onto a floppy disk or a CD. But few computers are available these days that include a floppy disk drive so alternative options must be considered. The next option for data back up was a CD offering more storage space compared to a floppy disc.
Despite providing the same feature of data back up, they could only be read by a computer supporting a CD Rom drive and no changes to the disk content were possible at first. However, CD-RWs allowed for the rewriting of data, but they could not be manipulated and an entire new CD had to be remade if new changes were required for the files in back up.
But these solutions are not the most viable to ensure business continuity, as a loss of data due to any physical damage would be irreparable. Also, CD-Rs and CD-RWs can get damaged or stolen, so the most effective option would be to consider offsite data backup where disaster recovery can be possible.
Having an online data backup can be the most preferred disaster recovery solution as the files are stored on an online server. They are safe and secure too as data is stored in an encrypted format making it inaccessible to anyone who does not have permission.
