Archiving / Backing up Data
Candidates are expected to:
Data that is archived is no longer actively used but it is
too important to delete permanently. Data that is archived is
usually stored on some form of removable storage media such as a
writable CD-Rom or DVD. Another alternative media is a removable
hard-drive or a large capacity floppy disk such as a Zip Drive.
The more valuable the archived data, the more important it is that
the media with the archived data on is usually stored somewhere safe,
just in case it is ever needed again.
Backed up data:
Data that is backed up is a copy of the active data that is
only used if the original data is damaged or deleted in some way.
Backing up can be done manually or automatically by a program.
The media used can be the same as for archiving but automatic backing up
of data is often onto magnetic tape as this is fairly simple technology
to automate and has a huge capacity, enough to back up the data on a
Backup data media is often stored well away from the original data so
if the original data is destroyed by an event such as a fire then the
backup data is safe. The KLB School servers are
backed up every
night onto tape and the previous backup tape is taken home each night by
the network manager. A backup of the whole system is taken before
important changes such as upgrades to the network system.
With the rise in fast Internet access it is now possible to backup
data automatically to servers anywhere in the world.
Pupils at GCSE level are encouraged to save a copy of important files
every now and again so they have a backup if a file is accidentally
deleted. The copy can simply be located somewhere else on your
user area or it can be saved on a memory stick or emailed home as an
attachment for example.