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Unisphere and Unisphere Central 2020 R1 Administrator's Guide

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Create an iSCSI Fault Domain

Create an iSCSI fault domain to group physical ports for failover purposes.

Prerequisites

  • In virtual port mode, all iSCSI ports that are connected to the same iSCSI network should be added to the same fault domain.
  • In legacy mode, each pair of primary and reserved ports that are connected to the same iSCSI network should be added to a unique fault domain. The primary port should be located on a different controller than the secondary port.
  • Physical ports cannot be selected and added to a fault domain if they are already added to another fault domain.
  • Each iSCSI port that you want to add to the fault domain must be assigned an IP address, subnet mask, and gateway in the same network as the iSCSI control port for the fault domain.

Steps

  1. If you are connected to a Data Collector, select a Storage Center from the drop-down list in the left navigation pane of Unisphere Central.
  2. From the System iconSYSTEM menu, click Ports.
    The Ports view is displayed.
  3. Click New icon(New) and select Create iSCSI Fault Domain.
    The Create iSCSI Fault Domain dialog box opens.
  4. In the Name field, type a name for the fault domain.
  5. Configure an IP address and gateway for the iSCSI control port in the fault domain. Servers target this IP address using iSCSI initiators, and the Storage Center redirects individual iSCSI connections to the appropriate virtual port.
    1. In the Target IPv4 Address field, type an IP address to assign to the iSCSI control port.
    2. In the Subnet Mask field, type the subnet mask for the well-known IP address.
    3. In the Gateway IPv4 Address field, type the IP address for the iSCSI network default gateway.
  6. In the Ports table, select the iSCSI ports to add to the fault domain.
    NOTE On SCv2000 or SCv3000 series storage systems, the iSCSI fault domains (iSCSI Fault Domain 1 and iSCSI Fault Domain 2) are predefined and the iSCSI ports are automatically assigned to the correct fault domains.
  7. Click OK.

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