September 2005
Intermediate to advanced
950 pages
113h 41m
English
book
IBM TotalStorage: SAN Product, Design, and Optimization Guide
by Jon Tate, Jim Kelly, Pauli Rämö, Leos Stehlik
Content preview from IBM TotalStorage: SAN Product, Design, and Optimization Guide
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780 IBM TotalStorage: SAN Product, Design, and Optimization Guide
22.3 Business continuance
Increasingly mid-sized companies are embracing the kinds of operational
disciplines that were once the preserve of mainframe IT departments. Disaster
recovery planning has moved from being simply an audit requirement to
becoming a fundamental business priority.
In general terms, business continuance solutions can be broken down into three
categories:
High availability (HA)
Backup & Recovery
Disaster recovery (DR)
A high availability system is designed to prevent frequent loss of service due to
component failures. A complex environment without HA is almost certain to fail
regularly.
Backup and recovery offers the added dimension of providing some protection ...
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