Rackable Systems OmniStor 4900F Series, Руководство пользователя

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Chapter 1 - Getting Started
RAID Controllers
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RAID Controllers
The OmniStor 4900F Series Storage System is designed to house one or two hot-pluggable
Wahoo2 RAID Controllers. The controller is the latest next generation dual port
high-performance 2 Gb/second Fibre Channel-to-Fibre Channel RAID controller
supporting RAID levels 0, 1, 5, 10, and 50.
The RAID Controllers are designed for “I/O Intensive” and “Bandwidth Intensive”
applications, providing simplex (stand-alone) and duplex (active-active) configurations
designed for existing and future Fibre Channel topologies. In simplex operations, the
controller operates autonomously. In duplex configurations, the two controllers operate as a
pair. In the event one controller fails, fault tolerance is maintained via hardware failover
allowing either controller to take over the operations of the other controller.
Wahoo2 RAID Controller
Each RAID Controller has two Fibre Channel ports and two Fibre Channel disk ports for
a “2x2” configuration (dual host-dual drive). In duplex configurations, it can process up to
80,000 I/O’s per second (IOPS). The active-active pair of RAID controllers can feed data
to SAN nodes at a sustained rate of 320 MB/sec, and process RAID 5 write operations at
220 MB/sec.