Dell PowerVault NX1950 Bedienungsanleitung PDF herunterladen (Seite 11)

Introduction 11

• It is a good practice to have two dual-port Network Interface Cards

(NICs), with two ports dedicated for iSCSI. Configure each NIC on a

separate subnet. If you have three or less NICs, it is recommended that you

do not use the corporate/public network (LAN) link for iSCSI traffic. This

helps avoid traffic congestion and to have better performance. Figure 1-1

and Figure 1-2 illustrate redundant NIC configuration for iSCSI path and

best practices.

• Secured iSCSI is possible with Challenge-Handshake Authentication

Protocol (CHAP). For more information about CHAP settings, see

"Configuring Secured iSCSI Connections Using Challenge-Handshake

Authentication Protocol" on page 51.

NOTE: You must configure CHAP only if the iSCSI traffic is configured on the

public network.

• You can configure Active/Active iSCSI Target in both nodes of a cluster

solution to provide high availability for iSCSI storage.

Table 1-2. Using a PowerVault NX1950 Cluster Solution as a Target

Number of NICs Initiator Refer to Figure

(Option 1)

NIC-1 - NIC for public network

NIC-2 - Private network for cluster

heartbeat

NIC-3 - iSCSI dedicated traffic (subnet A)

NIC-4 - iSCSI dedicated traffic (subnet B)

Figure 1-4

(Option 2)

NIC-1 and NIC-2 - Teamed NICs for

public network

NIC-3 - Private network for cluster

heartbeat

NIC-4 - iSCSI dedicated traffic

Figure 1-5

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Dell PowerVault NX1950 Bedienungsanleitung Seite 11