Dell SC8000, Руководство по развертыванию

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Connect the Front End for a Dual-Controller Storage Center
Dell Compellent 111
See Also
Requirements for Virtual Port Mode on page 97
Fibre Channel Zoning on page 102
Connect iSCSI Servers
Choose the iSCSI connectivity option that best suits the front ‐ end redundancy
requirements and network infrastructure.

Legacy Mode with Single ‐ Network iSCSI on page 111

Legacy Mode with Dual ‐ Network iSCSI on page 112

Virtual Port Mode with Single ‐ Network iSCSI on page 114

Virtual Port Mode with Dual ‐ Network iSCSI on page 115
Legacy Mode with Single-Network iSCSI
Connect legacy mode iSCSI to a single network if only one Ethernet switch is available and
you want to protect against controller failure.
In this configuration, two fault domains are spread across both controllers. Each fault
domain contains sets of primary and reserve paths (P1 ‐ R1 and P2 ‐ R2). The reserved paths
provide redundancy for single controller failure. This configuration is vulnerable to switch
failure.
Prerequisites
Each controller must have two available iSCSI front ‐ end ports.
Steps
1 Connect each iSCSI server to both Ethernet switches.
2 Connect fault domain 1 (shown in orange) to switch 1.

Primary port P1 : Controller A, slot 3, port 1
→
Switch 1

Reserved port R1 : Controller B, slot 3, port 1
→
Switch 1
3 Connect fault domain 2 (shown in blue) to switch 1.

Primary port P2 : Controller B, slot 4, port 2
→
Switch 1

Reserved port R2 : Controller A, slot 4, port 2
→
Switch 1
Note: To prevent a port or cable failure from blocking access to volumes mapped to
a controller, connect two additional fault domains so that each controller has two
primary paths to the iSCSI network.