Disaster Recovery

Introduction

What Is a Hosting Hosting system is a working Data Protector client used for Disk

System? Delivery Disaster Recovery with Disk Agent installed.

What Is Auxiliary Auxiliary disk is a bootable disk that has a minimal operating system with

Disk?networking and Data Protector Disk Agent installed. It can be carried around and used to boot the target system in Phase 1 of Disk Delivery Disaster Recovery of UNIX clients.

What Is a Disaster Disaster recovery operating system (DR OS) is operating system

Recovery environment where the process of disaster recovery is running. It Operating System provides Data Protector a basic runtime environment (disk, network,

(DR OS)? tape and filesystem access). It has to be installed and configured before the Data Protector disaster recovery can be performed.

DR OS can be either temporary or active. Temporary DR OS is used exclusively as a host environment for some other operating system restore along with the target operating system configuration data. It is deleted after the target system is restored to the original system configuration. Active DR OS not only hosts the Data Protector disaster recovery process but is also a part of the restored system because it replaces it’s own configuration data with the original configuration data.

What Are Critical Critical volumes are volumes required to boot the system and Data

Volumes? Protector files. Regardless of the operating system, these volumes are:

boot volume

system volume

Data Protector executables

IDB (Cell Manager only)

NOTE

If IDB is located on different volumes than all volumes where IDB

 

resides, are critical.

 

 

Apart from the critical volumes stated above, CONFIGURATION is also a part of the critical volumes set for Windows systems. Services are backed up as a part of the CONFIGURATION backup.

Some items included in the CONFIGURATION can be located on volumes other than system, boot, Data Protector or IDB volumes. In this case these volumes are also part of critical volumes set:

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Chapter 10

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