Dual Path Redundant Connection - Rorke Data Galaxy HDX2-2430S-16U4D Installation And Hardware Reference Manual

3.2.3 Dual Path Redundant Connection

This is a high availability configuration centered around two (2) host servers,
each with one (1) single-ported HBA for redundant path connections.
To create dual redundant data paths on the host side, it is necessary to
install third-party failover software on the host computers.
Channel Settings
Host
Drive
Configuration Information
RAID Controller
Host Server
Data Path Connection
Host Channel Bandwidth
Max. Number of Drives
Host Connection
Sample Topologies
Chapter 3: Subsystem Connection and Operation
Figure 3-3: Dual-Redundant Path Host Connection
NOTE:
This is a direct-attached configuration showing two (2) host
computers sharing the capacity in one (1) RAID subsystem. Drives
in the enclosure can be configured into one or more arrays, and
made available through individual host ports.
An Ethernet cable connects both computers to each other. This
configuration provides both physical path and host computer
redundancy. If one of the host channels becomes disconnected for
some reason, or the cable connecting one of the host ports to the
CH0 and CH1
Via system bus, through the backplane
1
2
Dual data paths
640 MB/s
16
3-5