Administrator Guide

5. In the Name field, type a name for the fault domain.

6. In the Ports table, select the Fibre Channel ports to add to the fault domain. All FC ports in the fault domain should be

connected to the same FC fabric.

7. Click OK.

Rename a Fibre Channel Fault Domain

The fault domain name allows administrators to identify the fault domain.

1. Expand the Dell Storage Manager menu, and then click Storage.

2. In the SC Series tab, select a Storage Center to open the Storage Center view.

3. Click the Storage tab, and then click the Fault Domains subtab.

4. In the Fault Domains subtab, select the fault domain, then click Edit. The Edit Fibre Channel Fault Domain dialog box opens.

5. In the Name field, type a name for the fault domain.

6. Click OK.

Grouping iSCSI IO Ports Using Fault Domains

Front-end ports are categorized into fault domains that identify allowed port movement when a controller reboots or a port fails.

Ports that belong to the same fault domain can fail over to each other because they have connectivity to the same resources.

NOTE: For SC4020 storage controllers, the 10Gb Ethernet iSCSI port on each storage controller module is used only for

replication to another

Storage Center. Front-end connectivity to servers is not supported for these ports.

iSCSI VLAN Tagging Support

iSCSI ports in a fault domain can be configured to use a VLAN ID. For each Storage Center, one of two levels of VLAN functionality

is available depending on the Storage Center OS version, Storage Center controller model, and iSCSI hardware. Basic VLAN

functionality is referred to as single-VLAN tagging, and enhanced VLAN functionality is referred to as multi-VLAN tagging.

Single-VLAN Tagging

If a Storage Center supports single-VLAN tagging, a maximum of 1 VLAN ID can be configured for each iSCSI IO port. An iSCSI IO

port can belong to only one fault domain, and all ports in the same fault domain use the same VLAN ID.

Single VLAN tagging is supported by all Storage Center versions compatible with Storage Manager.

Multi-VLAN Tagging

If a Storage Center supports multi-VLAN tagging, a maximum of 64 VLAN IDs can be configured for each iSCSI IO port. An iSCSI IO

port can belong to up to 64 fault domains—one for each VLAN.

Multi-VLAN tagging is supported by Storage Centers that meet the multi-VLAN tagging requirements.

Multi-VLAN Tagging Requirements

The following table lists the requirements that a Storage Center must meet to support multi-VLAN tagging.

Requirement

Description

Storage Center OS Version 6.5 or later must be installed on the Storage Center.

Storage Center controller model The Storage Center must have SC8000, SC4020, or CT-SC040

model controllers.

Storage Center iSCSI IO card hardware Chelsio T3/T5 10G iSCSI cards must be installed in the Storage

Center.

Storage Center front-end connectivity mode The Storage Center iSCSI ports must be configured for virtual

port mode. Legacy mode is not supported.

Storage Center Maintenance