Rorke Data A16F-R2431 Galaxy Raid, Руководство по установке и аппаратным средствам

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Galaxy A16F-R2431 Installation and Hardware Reference Manual
3-14
Sample Topologies
Configuration Rules:
1. For details on the relationships among host links, host ID/LUNs, and
logical configurations, you may refer to Chapter 12 Redundant
Controller in your firmware operation manual.
2. Shown above is a DAS application using independent host links to the
host ports on two RAID controllers.
3. The configuration ensures that an application server can always access a
storage array even in the event of cabling component failure.
4. The onboard hub should be enabled so that if a controller fails, access to
the array should continue with the data link to the surviving controller.
5. If Controller A fails, host LUNs previously associated with Controller
A will be managed by Controller B.
6. Depending on I/O characteristics, each configured array should be
properly optimized either for Random or Sequential I/Os.
7. You may also partition a logical capacity into two or more volumes and
let each server access separate volumes.
8. With fault-tolerant cabling, host multipathing software is necessary.