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1.
Virtualization Benefits?
Server
Consolidation
Most servers are only
utilizing 5 to 15% of their CPU capacity and in most cases only run
one application. Using virtualization software, physical servers can
be replaced by virtual servers.
Business Continuity
Within a
“virtualized” data center, virtual servers can be configured to
automatically move from one physical server to a different server in
the event of a physical server failure. Before virtualization, the
failed physical server would have to be repaired before the server
was brought back online; taking hours and in some cases days to come
back on-line. With virtualization software, the restore process
takes minutes.
Capacity Management
Virtualized data
centers can be configured with policies to automatically move
virtual servers from one physical server to a different physical
server when a capacity threshold is reached (such as CPU or network
utilization).
Test and Development
In traditional
software test and development groups, engineers take hours to create
development and test servers from scratch, loading several OS
versions and applications on different physical servers. With server
virtualization, test and development servers and applications can be
cloned and created in minutes. Several different OS and application
revisions can be tested using several virtual servers residing on
the same physical server. The resulting benefits include: reducing
the number of servers needed and maximizing testing time.
Disaster Recovery
The most stressful
and worrisome task for IT Operations Managers is implementing a
disaster recovery plan. Using traditional methods, disaster recovery
is costly, and at best partially effective. Using virtualization’s
live recovery option the data is never lost and the virtual servers
will be automatically started on another physical server. With the
ability to clone any virtual server, the server can easily be stored
offsite; and in the case of a site disaster, the data center can be
re-created.
Environmentally
Friendly
If you care about global warming, reducing our dependence on foreign
oil and being energy conscious, then virtualization is a key
technology. Most server virtualization projects reduce space, power
and heating/AC costs by over 50%.
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