Continuous Data Availability - HP StorageWorks XP12000 Owner's Manual

Continuous data availability

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The HP StorageWorks Disk Array XP family includes the first RAID disk
arrays to provide truly continuous data availability. XP disk arrays are
designed for nonstop operation and continuous access to all user data.
The following XP12000 features ensure continuous data availability:
• No single point of component failure, which enables uninterrupted
access to data
• Component and function redundancy, providing full fault tolerance for
disk array microprocessors, control storage, cache, control and data
buses, power supplies, and cooling fans
• Can sustain multiple component failures and still continue to provide
full access to stored data
Although access to data is not compromised, the failure of a key component
can cause a temporary reduction in disk array performance.
HP StorageWorks XP12000 Disk Array Owner's Guide