A disaster is an incident or event which:
- Threatens personnel, buildings
or the organisational structure of an organisation.
- Requires special measures to
be taken to restore things back to normal
There are many possible
causes of a disaster or disruptive event which occurs
or threatens to occur to the premises, and the extent
of their impact will vary from incident to incident.
The most likely causes a Department will be faced with
are:
- Fire;
- Flood;
- Storm;
- Bomb threat;
- Bomb damage;
- Vandalism, for example broken
glass making the entrance unsafe to use;
- Heating or air conditioning failure
which could lead to staff walkout;
Power failure;
- Inclement weather;
- Loss of essential services, such
as power, telephones or lifts;
- Asbestos discovery in older
premises.
At engineering
and consulting, we provide the following data storage
techniques to safeguard your valuable information with
proper backup support
 Storage
Area Network (SAN) — is a dedicated,
high-speed network based on the fibre channel, switches
and hubs that connect many heterogeneous servers to
storage devices. In effect, the storage devices are
removed from their servers and are available to many
servers across a network. Besides, it increases the
manageability of storage and allows easy addition of
storage or servers. It further removes the vendor dependence.
The largest chunk of the LAN traffic has been observed
to be pertaining to backup, mirroring, “heartbeat”
and disaster recoveryrelated activities. With SAN,
all these housekeeping activities are done off the
LAN and
happen over the SAN fibre. This frees the server power
and the network for applications. The many-to-many
server-to-storage
connectivity makes it easier to plan for continuity.
Applications of a server that go down can easily be
taken over by its backup server, since connecting to
the storage is not a problem. As a result, a very good
RTO can be provided. Since backups and replication/mirroring
activities happen reliably and rapidly over the SAN,
the desired disaster recovery copies are available
and
easy to access, its RPO too, is excellent
|
Network
Attached Storage (NAS) — A storage device
with a built-in network interface that can be plugged
into the network to provide access to data. It supports
all the file service protocols to share files across
systems, and is easy to install and maintain. Enterprise
systems’ storage of this form are proprietary,
therefore every time an upgrade is needed, it is necessary
to go back to the manufacturer and also be tied to a
specific vendor. Data transfer and backups need to use
the network. |
