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Everyone understands the importance of availability for critical applications and IBM Power HA Cluster Manager for AIX (HACMP) helps businesses ensure this availability with reliable system monitoring and failure
response.
Local clustering provides valuable protection from small-scale network, hardware or software
glitches but businesses today also seek protection from problems that reach beyond a single
data center. Natural disasters such as earthquakes and floods and man-made disasters such as
blackouts and terrorism can affect entire neighborhoods and cities, disrupting your ability
to deliver application services for days, weeks or even months. In August of 2007, a massive
blackout struck almost instantly, leaving millions of people and thousands of businesses
without power across several northeastern states and all the way into Canada; for many,
power was not restored for several days. The impact of such an event on your business could
be devastating.
HACMP's Extended Distance option (HACMP/XD) extends the protection of HACMP for AIX to
geographically remote sites to help ensure business continuity even if an entire site is
disabled by catastrophe. HACMP/XD automatically manages the replication and synchronization
of your Web site, databases and other critical data and applications to a separate location
from your primary operations and keeps this replicated data updated in real-time. In the
event of a power outage, flood or other disaster, your services are automatically transferred
from the disabled site and restarted at the remote site; your data remains safe and your
business keeps running. During operation at the backup site, data replicating will be
reversed back to the primary site as soon as it is restored, providing protection for the
backup site and enabling the primary site to resume production operations if desired.
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