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The Cambex Availability Edge
Cambex’s host-based Dynamic Path Failover (DPF) software
provides an application transparent mechanism for
implementing fault-resilient storage applications in IBM AIX
environments. When used with industry leading RAID arrays
and two host bus adapters (HBAs) per server, DPF eliminates
all single points-of-failure from the server to the storage
subsystem. The software provides full data availability in
the event of an HBA, cable, switch, RAID controller or other
storage path failure. Data path failovers and subsequent
recoveries when the path is restored are fully automatic and
transparent to the host. DPF’s storage path management
consists of an independent software layer that isolates and
protects the multipathing software from conflicts with file
systems, volume managers or adapter drivers.
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