Iscsi Security; Stable Operation; Quality Of Service (Qos) - Fujitsu ETERNUS DX500 S3 Overview

Hybrid storage systems

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SAN Functions

iSCSI Security

For an iSCSI interface, the iSCSI authentication function can be used when the initiator accesses the target. The

iSCSI authentication function is available for host connections and remote copying.

The Challenge Handshake Authentication Protocol (CHAP) is supported for iSCSI authentication. For CHAP Au-

thentication, unidirectional CHAP or bidirectional CHAP can be selected. When unidirectional CHAP is used, the

target authenticates the initiator to prevent fraudulent access. When bidirectional CHAP is used, the target au-

thenticates the initiator to prevent fraudulent access and the initiator authenticates the target to prevent imper-

sonation.

Stable Operation

This section explains the function that sets the operation mode according to the connection environment of the

ETERNUS DX in order to enable stable operation.

The I/O performance of a server with higher priority is guaranteed by configuring the performance limit of each

connected server.

When loads from one application are high in a storage integrated environment and sufficient resources to proc-

ess other operations cannot be secured, performance may be reduced.

If the QoS function is used, the processing performance of the server given priority for a process can be main-

tained. The workload limit can be configured on each server, and even if workload has been changed by a server

processing request, the prioritized operation will not be affected.

The storage resource can be automatically adjusted using ETERNUS SF Storage Cruiser to link the QoS automa-

tion with Automated Storage Tiering.

In addition, an upper bandwidth limit can be set for each copy path. Even if a specific path fails, a steady load

can be maintained without centralizing the load to other paths.

FUJITSU Storage ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Overview

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