Troubleshooting guide

CHAPTER

1-1

Cisco Wide Area Application Services Configuration Guide

OL-26579-01

Maintaining Your WAAS System

This chapter describes the tasks that you may need to perform to maintain your WAAS system.

Note Throughout this chapter, the term WAAS device is used to refer collectively to the WAAS Central

Managers and WAEs in your network. The term WAE refers to WAE appliances, WAE Network Modules

(the NME-WAE family of devices), and SM-SRE modules running WAAS.

This chapter contains the following sections:

• Upgrading the WAAS Software, page 1-1

• Backing Up and Restoring your WAAS System, page 1-8

• Performing Disk Maintenance for RAID-1 Systems, page 1-24

• Replacing Disks in RAID-5 Systems, page 1-25

• Configuring the Central Manager Role, page 1-26

• Enabling Disk Encryption, page 1-30

• Configuring a Disk Error-Handling Method, page 1-32

• Enabling Extended Object Cache, page 1-32

• Activating All Inactive WAAS Devices, page 1-34

• Rebooting a Device or Device Group, page 1-35

• Performing a Controlled Shutdown, page 1-35

Upgrading the WAAS Software

Table 1-1 outlines the steps you must complete to upgrade your WAAS software to a more recent

version.

We recommend that all devices in your WAAS network should be running the same version of the WAAS

software. If some of your WAAS devices are running different software versions, the WAAS Central

Manager should be the highest version. For details on version interoperability limitations, see the

Release Note for Cisco Wide Area Application Services.

If the WAAS Central Manager sees any registered WAE devices that are at a higher version level, it raises

a minor alarm to alert you. Additionally, the WAE devices are shown in red on the device listing page.