Dell SC4020, Руководство по развертыванию

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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/ ).
Virtual Port Mode — One Fibre Channel Fabric with Dual 8 Gb 4-Port Storage Controllers
Use one Fibre Channel (FC) fabric with virtual port mode to prevent an unavailable port or storage
controller from causing a loss of connectivity between the host servers and a storage system with dual 8
Gb 4-port storage controllers.
About this task
This configuration includes two fault domains, one fabric, and one FC switch. Each storage controller
connects to the FC switch using four FC connections.
• If a physical port becomes unavailable, the virtual port moves to another physical port in the same
fault domain on the same storage controller.
• If a storage controller becomes unavailable, the virtual ports on the offline storage controller move to
the physical ports on the other storage controller.
NOTE: This configuration is vulnerable to switch unavailability, which results in a loss of connectivity
between the host servers and the storage system.
Steps
1.
Connect each server to the FC fabric.
2. Connect fault domain 1 (shown in orange) to the fabric.
• Storage controller 1: port 1 to the FC switch
• Storage controller 1: port 3 to the FC switch
• Storage controller 2: port 1 to the FC switch
• Storage controller 2: port 3 to the FC switch
3. Connect fault domain 2 (shown in blue) to the fabric.
• Storage controller 1: port 2 to the FC switch
• Storage controller 1: port 4 to the FC switch
• Storage controller 2: port 2 to the FC switch
• Storage controller 2: port 4 to the FC switch
Connect the Front-End Cabling
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