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Example
Figure 47. Storage System in Virtual Port Mode with Dual 8 Gb Storage Controllers and One FC Switch
1.
Server 1
3.
FC switch (fault domain 1 and fault domain 2)
5.
Storage controller 1
Next steps
Install or enable MPIO on the host servers.
NOTE: For the latest best practices, see the Dell Storage Center Best Practices document on the
Dell TechCenter site (http://en.community.dell.com/techcenter/storage/).
Legacy Mode — Two Fibre Channel Fabrics with Dual 16 Gb 2-Port Storage Controllers
Use two Fibre Channel (FC) fabrics with legacy mode to prevent an unavailable port, switch, or storage
controller from causing a loss of connectivity between host servers and a storage system with dual 16 Gb
2-port storage controllers.
About this task
In this configuration, there are two fault domains, two FC fabrics, and two FC switches.
•
Each fault domain contains a set of primary and reserve paths (P1-R1and P2-R2).
•
To provide redundancy, the primary port and corresponding reserve port in a fault domain must
connect to the same fabric.
•
When MPIO is configured on the servers, the primary paths provide redundancy for an unavailable
server or storage controller port. The reserved paths provide redundancy for an unavailable storage
controller.
Steps
1.
Connect each server to both FC fabrics.
2.
Connect fault domain 1 (shown in orange) to fabric 1.
•
Primary port P1 — Storage controller 1: port 1 to FC switch 1
60
2.
Server 2
4.
Storage system
6.
Storage controller 2
Connect the Front-End Cabling
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