User`s guide

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3: Features of the RAID Controller
Duplex Dual-Port RAID Topology
Figure 3-4 illustrates a duplex dual-port RAID configuration using two hosts and two
controllers. This configuration:
• Supports transfer speeds up to 400 MB/s
• Supports failover capabilities
• Supports SGI FailSafe high-availability solutions
Figure 3-4 Duplex Dual-port RAID Configuration
Caution: If two independent systems access the same volume of data and the operating
system does not support file locking, data corruption may occur. To avoid this, create two
or more volumes (or LUNs) and configure each volume to be accessed by one system
only.
LRC B
SFP
Host 0
SFP
Host 1
LRC A
SFP
Host 0
SFP
Host 1
16 dual-ported drives
Midplane
QLogic
2310 HBA
QLogic
2310 HBA
FFX-2 FFX-2
!