SSR212PPi Directly Connected to Two Servers

Figure 6 shows two servers, each with an iSCSI initiator directly cabled to an iSCSI data port on the SSR212PPi.

Servers with separate iSCSI NIC and public NIC

Corporate,

 

 

 

 

public or private

 

 

 

DAS iSCSI

network

 

 

 

iSCSI traffic

 

iSCSI traffic

and public LAN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ma

nagement traffi

c

 

 

 

 

 

 

 

 

 

 

 

SSR212PPi

EMC3312

FIGURE 6. SSR212PPi (Single SP) Directly Connected to Two Servers

Sample IP Addresses

Port

IP address

Subnet mask

Gateway

Storage Processor A iSCSI port 0

172.31.1.150

255.255.255.0

0.0.0.0

Storage Processor A iSCSI port 1

172.31.1.151

255.255.255.0

0.0.0.0

iSCSI NIC/HBA 1

172.31.1.101

255.255.255.0

0.0.0.0

iSCSI NIC/HBA 2

172.31.1.102

255.255.255.0

0.0.0.0

 

 

 

 

Management port IP addresses should match the corporate network scheme.

Advantages

You can easily migrate this low-cost storage for two servers to a switched environment.

The dedicated iSCSI path ensures maximum throughput from the host to the storage system.

Since two servers can connect to the storage system, this configuration takes advantage of the SSR212PPi s port connectivity capabilities.

The dedicated paths provide inherent security.

Disadvantages

One storage processor does not allow for failover in case of SP failure.

A single path from each server prohibits failover or load balancing.

SSR212PP2i Directly Connected to One Server

Figure 7 shows one server, with four iSCSI initiators, directly cabled from the server to each of the SSR212PP2i s iSCSI data ports.

Intel Storage System SSR212PP User Guide

25

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Intel manual SSR212PPi Directly Connected to Two Servers, SSR212PP2i Directly Connected to One Server