What are Cloud Servers?
Cloud Servers
In some respects cloud servers work in the same way as physical servers but the functions they provide can be very different. When opting for cloud hosting, clients are renting virtual server space rather than renting or purchasing physical servers. They are often paid for by the hour depending on the capacity required at any particular time.
Traditionally
there are two main options for hosting: shared hosting and dedicated
hosting. Shared hosting is the cheaper option whereby servers are
shared between the hosting provider’s clients. One client’s
website will be hosted on the same server as websites belonging to
other clients. This has several disadvantages including the fact that
the setup is inflexible and cannot cope with a large amount of
traffic. Dedicated hosting is a much more advanced form of hosting,
whereby clients purchase whole physical servers. This means that the
entire server is dedicated to them with no other clients sharing it.
In some instances the client may utilise multiple servers which are
all dedicated to their use. Dedicated servers allow for full control
over hosting. The downside is that the required capacity needs to be
predicted, with enough resource and processing power to cope with
expected traffic levels. If this is underestimated then it can lead
to a lack of necessary resource during busy periods, while
overestimating it will mean paying for unnecessary capacity.With
cloud hosting clients get the best of both worlds. Resource can be
scaled up or scaled
down
accordingly, making it more flexible and, therefore, more
cost-effective. When there is more demand placed on the servers,
capacity can be automatically increased to match that demand without
this needing to be paid for on a permanent basis. This is akin to a
heating bill; you access what you need, when you need it, and then
only pay for what you’ve used afterwards.
Unlike
dedicated servers, cloud servers can be run on a hypervisor. The role
of a hypervisor is to control the capacity of operating systems so it
is allocated where needed. With cloud hosting there are multiple
cloud servers which are available to each particular client. This
allows computing resource to be dedicated to a particular client if
and when it is necessary. Where there is a spike in traffic,
additional capacity will be temporarily accessed by a website, for
example, until it is no longer required. Cloud servers also offer
more redundancy. If one server fails, others will take its
place.Below are the key benefits of cloud
servers:· Flexibility and scalability : extra resource can be accessed as and when required
Cost-effectiveness : whilst being available when needed, clients only pay for what they are using at a particular time
Ease of set up : Cloud servers do not require much initial setup
Reliability : due to the number of available servers, if there are problems with some, resource will be shifted so that clients are unaffected.
Also see most viewed one
Please subscribe to get more form this site and must comment
Comments
Post a Comment
Comment