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As with any services important the user requires that provides some level of fault tolerance in a graceful

manner. SME provides fault tolerance by allowing encryption nodes to be grouped into a cluster. Nodes

in the same cluster immediately take over the work of a failed node so that the user does not experience

service disruption.

Software and Hardware Requirements

This section includes the following topics:

•

All MDS switches in the SME cluster must be running the current release of Cisco SAN-OS Release

3.2(2c) or later, or Cisco NX-OS 4.x or later software for SME Tape. Cisco NX-OS Release 5.2(1) or

later software is required for SME Disk. The software requirements include the following:

•

Hardware Requirements

SME requires at least one encryption service engine in each cluster. The SME engines on the required

modules provide the transparent encryption and compression services to the hosts and storage devices.

To take full advantage of the standard and advanced security levels, a smart card reader is required.

For detailed information on required hardware and installing required hardware, refer to the specific

installation guides. For information about ordering hardware, refer to

http://www.cisco.com/en/US/ordering/index.shtml.

This section includes information about the following required hardware:

•

Cisco MDS 9000 Family NX-OS Storage Media Encryption Configuration Guide

1-10

Software Requirements, page 1-10

Hardware Requirements, page 1-10

DCNM-SAN must be running Cisco SAN-OS Release 3.2(2c) or later or Cisco NX-OS Release 4.x

or later for SME Tape.

The Cisco MDS switches attached to tape devices must be running Cisco SAN-OS Release 3.2(2c)

or later or Cisco NX-OS Release 4.x or later for SME Tape.

All switches that include MSM-18/4 modules must be running Cisco SAN-OS Release 3.2(2c) or

later or Cisco NX-OS Release 4.x or later software for SME Tape.

DCNM-SAN must be running Cisco NX-OS Release 5.2(1) for SME Disk.

All Cisco MDS switches in the SME cluster enabled for disks must be running Cisco NX-OS

Release 5.2(1).

All switches that include MSM-18/4 modules, MDS 9222i switch or SSN-16 modules must be

running Cisco NX-OS Release 5.2(1) for SME Disk.

Chapter 1

Storage Media Encryption Overview

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