HP B6960-90078 manual What is Online, Recovery?, What is Offline, Local/Remote

Disaster Recovery

Introduction

	• user profiles volume
	• Certificate Server database volume on Windows Server
	• Active Directory Service volume on domain controller on Windows
	Server
	• quorum volume on Microsoft Cluster Server.
What is Online	Online recovery is performed when Cell Manager is accessible. In this
Recovery?	case most of Data Protector functionalities are available (Cell Manager
	runs the session, restore sessions are logged in the IDB, you can monitor
	the restore progress using GUI, etc.).
What is Offline	Offline recovery is performed if the Cell Manager is not accessible (for
Recovery?	example, due to network problems, Cell Manager has experienced a
	disaster, online recovery has failed, etc.). Only standalone and SCSI-II
	Library devices can be used for offline recovery. Note that recovery of
	Cell Manager is always offline.
What is	Remote recovery is performed if all Media Agent hosts specified in SRD
Local/Remote	file are accessible. If any of them fails, disaster recovery process fails
Recovery?	over to local mode. This means that the target system is searched for
	locally attached devices. If only one device is found, it is automatically
	used. Otherwise Data Protector prompts you to select the device which
	will be used for restore. Note that offline OBDR is always local.
	Disaster is always serious, however the following factors can exacerbate
	the situation:
	• The system has to be returned to online status as quickly and
	efficiently as possible.
	• Administrators are not familiar with the required steps to perform
	the disaster recovery procedure.
	• The available personnel to perform the recovery may only have
	fundamental system knowledge.
	Disaster recovery is a complex task that involves extensive planning and
	preparation before execution. You have to have a well-defined,
	step-by-step process in place to prepare for, and recover from, disastrous
	situations.

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