Data Protection Manager 2007 Frequently Asked Questions

Applies To: System Center Data Protection Manager 2007

Find answers to frequently asked questions about Microsoft System Center Data Protection Manager (DPM) 2007.

• What’s New in DPM 2007 SP1?

• Getting Started

• Upgrading to DPM 2007

• DPM 2007 Licensing

• Installation and Setup

• DPM Management Pack

• Protection Agent Deployment

• Data Protection and Recovery

• Clustered Resources

• Reports and Notifications

• Tape Libraries

• End-User Recovery

• Storage Pool Configuration

• Disaster Recovery

Microsoft System Center Data Protection Manager (DPM) 2007 Service Pack 1 (SP1) provides enhanced support for Windows SharePoint Services (WSS) and Microsoft Office SharePoint Server (MOSS), including significant performance improvements when protecting WSS farms, and search index backups for WSS and MOSS. DPM 2007 SP1 supports protection for Hyper-V, including support for both guest-based and host-based protection. DPM 2007 SP1 supports protection for mirrored SQL Server databases and mirrored clusters, and also supports Microsoft Exchange Server Standby Continuous Replication (SCR). You can use SCR to replicate your Exchange Server data sources and Exchange Server clusters to a remote network location. For an additional layer of protection, DPM 2007 SP1 enables you to back up local file servers and Hyper-V hosts on the DPM server. For an additional layer of protection, DPM 2007 SP1 enables you to back up local file servers and Hyper-V hosts on the DPM server.

The DPM product team strongly recommends that every installation of DPM take advantage of the following updates previously released as individual hotfixes by installing DPM 2007 SP1.

• Knowledge Base article 946647, “Description of the Data Protection manager 2007 hotfix package” (https://go.microsoft.com/fwlink/?linkid=122264).

• Knowledge Base article 948373, “The backup image may be corrupted if you use System Center Data protection Manager 2007 to perform an online backup of a virtual machine that is running in Virtual Server 2005” (https://go.microsoft.com/fwlink/?linkid=122265).

• Knowledge Base article 950082, “Description of the Data Protection Manager 2007 hotfix package rollup 2 (https://go.microsoft.com/fwlink/?linkid=122319).

• Knowledge Base article 948936, “When synchronization runs in Data Protection Manager 2007, the DPM service may unexpectedly crash” (https://go.microsoft.com/fwlink/?linkid=122320).

• Knowledge Base article 951557, “Description of the hotfix rollup package for Data Protection Manager 2007” (https://go.microsoft.com/fwlink/?linkid=122321).

• Knowledge Base article 949779, “Description of the System Center Data Protection Manager Feature Pack” (https://go.microsoft.com/fwlink/?LinkId=140349).

• Knowledge Base article 954641, “Description of the hotfix rollup package for System Center Data Protection Manager 2007: July 31, 2008” (https://go.microsoft.com/fwlink/?linkid=140350).

For more information about DPM 2007 SP1, see What’s New in Microsoft System Center Data Protection Manager 2007 Service Pack 1? (https://go.microsoft.com/fwlink/?linkid=136613).

Installing DPM 2007 SP1

Instructions for installing DPM 2007 SP1 are available from Knowledge Base article 959605, “Description of System Center Data Protection Manager 2007 Service Pack 1” (https://go.microsoft.com/fwlink/?LinkId=137147).

Microsoft System Center Data Protection Manager (DPM) 2007 is a key member of the Microsoft System Center family of management products, designed to help IT professionals manage their Windows environment. DPM is the new standard for Windows backup and recovery—delivering seamless data protection for Microsoft application and file servers by using integrated disk and tape media. DPM performs replication, synchronization, and recovery point creation to provide reliable protection and rapid recovery of data for both system administrators and end-users.

DPM 2007 is a generation ahead of Data Protection Manager 2006. DPM is the new standard in application-integrated continuous data protection. DPM provides unmatched application backup functionality and reliable zero data loss application recovery. Additional features in DPM include:

• Tape-based backup and archive solutions

• Protection of:

  • Exchange Server 2003 SP2 and Exchange Server 2007

  • Microsoft SQL Server 2000 SP4, SQL Server 2005 SP1, or SQL Server 2005 SP2

  • Windows SharePoint Services (WSS) 3.0 and Microsoft Office SharePoint Server 2007

  • Microsoft Virtual Server 2005 R2 SP1 and its virtual machines

  • Windows Server 2008 operating system

    Note

    For complete protection on a Windows Server 2008 operating system, including system state protection, you must install Knowledge Base article 949779 (https://go.microsoft.com/fwlink/?LinkId=122512).

  • Files on workstations and laptops running Windows XP Professional SP2 and all Windows Vista Editions except the Home Edition.

    Note

    DPM requires that the workstations and laptops that it protects be Active Directory members. Therefore, they must remain connected to the corporate local area network (LAN) at all times using reliable and consistent networks.

  • Files and application data on clustered servers

  • System state for protected file and application servers

• Tape data encryption

• Network bandwidth usage throttling configured for protected computers

• Zero data loss restoration for application data

• Support for 64-bit protection

• Protection for SIS-enabled servers

• Protection across domains

• Disaster recovery (including DPM protecting a DPM server)

• DPM Management Shell

• Synchronization frequency has increased from hourly to every 15 minutes.

• You must be a member of the Administrators group to access DPM Administrator Console. If you are a member of a group other than the Administrators group, such as Backup Operator, you will not have access to DPM Administrator Console.

• DPM 2007 cannot protect file servers running Windows Server 2000.

• DPM 2007 supports Redundant Array of Independent Drives (RAID) using the new custom volumes feature.

In addition to English, DPM 2007 has implemented Chinese Simplified, Chinese Traditional, French, German, Italian, Japanese, Korean, and Spanish.

DPM provides disk-based and tape-based protection for your data, which can be deployed as follows:

• Disk-to-disk (D2D). A method of backup in which data from one computer is stored on the hard disk of another computer. You can use this method to back up your DPM server using your existing alternative tape product.

• Disk-to-tape (D2T). A traditional method of backing up data from one computer to a type of storage media, such as tape.

• Disk-to-disk-to-tape (D2D2T). This method combines D2D and D2T for extra protection. D2D2T provides the rapid recovery benefits of disk-based storage in the short term and archive storage for critical data using tape-based storage in the long term.

In DPM 2007, DPM supported protecting computers across domains within a forest. DPM 2007 did not support protection across forests.

DPM 2007 SP1 supports data protection across forests as long as you establish forest-level trust between the separate forests. To set up a forest-level trust relationship, both domains must be in Windows Server 2003 or Windows Server 2008 forest mode. Windows Server 2000 does not support forest-level trusts. For information about setting up a forest-level trust relationship, see Checklist: Creating Forest trust (https://go.microsoft.com/fwlink/?LinkId=136803), and Create a forest trust (https://go.microsoft.com/fwlink/?LinkId=136804).

The following table lists the Exchange Server configurations that DPM 2007 supports.

You must be a domain user with administrator access to use DPM Administrator Console.

DPM 2007 provides its own set of Windows PowerShell commands that can be used in addition to DPM Administrator Console to perform data protection management tasks. A DPM administrator can use DPM cmdlets to perform many of the administrative tasks that can be performed in the console. You access the DPM cmdlets through DPM Management Shell.

DPM Management Shell can be installed on computers other than the DPM server, enabling you to administer multiple DPM servers remotely. You can also install DPM Management Shell on desktop computers running Windows XP or Windows Vista.

There is no precise formula for determining the number of DPM servers you will need. The number of servers and the amount of data that a single DPM server can protect will vary based on the following factors:

• Change rate of the data sources to be protected

• The amount of space available in the storage pool

• How often the data will be synchronized

• Available bandwidth at each protected computer

• Aggregate bandwidth on the DPM server

For more information, in Planning a DPM 2007 Deployment, see Planning the DPM Server Configurations (https://go.microsoft.com/fwlink/?LinkId=91850).

A DPM server can store up to 9,000 disk-based snapshots, including those retained when you stop protection of a data source. The snapshot limit applies to express full backups and file recovery points, but not to incremental synchronizations.

Yes, you can upgrade to DPM 2007 RTM from a pre-release version of DPM. For detailed information about upgrading to DPM 2007, see Upgrading Pre-release Versions of DPM 2007 (https://go.microsoft.com/fwlink/?LinkId=99140).

Yes, you can upgrade from previous versions of DPM. For information about upgrading from DPM V2 Beta 2 to DPM 2007, see Upgrading Pre-release Versions of DPM 2007 (https://go.microsoft.com/fwlink/?LinkId=99140).

For information about upgrading from DPM 2006 to DPM 2007, see the DPM 2007 Upgrade Guide (https://go.microsoft.com/fwlink/?LinkId=66737). We recommend that you upgrade only from a DPM 2006 test/pilot installation to DPM 2007.

DPM has standard and enterprise licenses. The standard license entitles you to protect volumes, shares, and folders, as well as computer system state. The enterprise license entitles you to protect application data, such as mailboxes and databases on an Exchange Server, in addition to files. On a server cluster, DPM installs an agent on each node of the cluster. A license is used for each server node.

To protect desktop computers running Windows XP or Windows Vista, DPM requires a Microsoft System Center Configuration Manager Client Management License (ML).

The following table shows the DPM licenses that are used for each type of protected data.

You can purchase additional DPM licenses through the Microsoft Partner Program (https://go.microsoft.com/fwlink/?LinkId=71663).

You must log on as a domain user who is a member of the local administrators group before you install DPM 2007.

• The DPM server must be deployed within a Windows Server 2003 Active Directory domain. The domain controllers can be running Windows Server 2000, Windows Server 2003, or Windows Server 2003 R2 Server.

  DPM 2007 running in Windows 2000 domain functional level does not support the following:

  • Protecting computers across domains.

  • Protecting a child Windows Server 2000 domain controller in a domain where Windows Server 2000 is the primary domain controller.

  • Protecting computers running Exchange Server 2007.

• The DPM server requires persistent connectivity with the servers and desktop computers it protects.

The following table lists the recommended hardware requirements for the DPM server. For more information about the DPM 2007 hardware requirements, see Hardware Requirements (https://go.microsoft.com/fwlink/?LinkId=90633).

• The DPM server must be running one of the following operating systems:

  Important

  DPM supports 32-bit and x64-bit operating systems. DPM 2007 does not support ia64-bit operating systems.

  • Windows Server 2003 with SP2 or later (Standard and Enterprise Editions).

    To download Windows Server 2003 SP2, see Windows Server 2003 Service Pack 2 (https://go.microsoft.com/fwlink/?LinkId=90633).

  • Windows Server 2003 R2 (Standard and Enterprise Editions).

  • Windows Advanced Server 2003 with SP2 or later.

  • Windows Storage Server 2003 with SP2 or later (Standard, Enterprise and Express Editions).

    To obtain Windows Storage Server 2003 SP2, contact your original equipment manufacturer.

  • Windows Storage Server 2003 R2 with SP2.

  • Windows Server 2008 (Standard and Enterprise Editions).

  Warning

  For complete protection on a Windows Server 2008 operating system, including system state protection, you must install Knowledge Base article 949779 (https://go.microsoft.com/fwlink/?LinkId=122512).

• The DPM server must be a dedicated, single-purpose server.

  • The server cannot be either a domain controller or an application server.

  • The server cannot be the Management Server for Microsoft System Center Operations Manager.

For detailed information about DPM 2007 software requirements, see DPM Server Software Requirements (https://go.microsoft.com/fwlink/?LinkId=100242).

The following table lists the protected computer requirements.

Before you install protection agents on the computers you are going to protect, you must apply hotfix 940349. For more details, see Microsoft Knowledge Base article 940349, "Availability of a Volume Shadow Copy Service (VSS) update rollup package for Windows Server 2003 to resolve some VSS snapshot issues" (https://go.microsoft.com/fwlink/?LinkId=99034).

Protected computer requirements

• DPM 2007 supports using any of the following sources for server storage capacity:

  • Direct attached storage (DAS)

  • Fibre Channel storage area network (SAN)

  • Internet SCSI (iSCSI) storage device or SAN; the iSCSI target must have received Windows Hardware Certification

• DPM 2007 does not support USB/1394 disks

DPM Setup installs the following software before installing the DPM application:

• Windows Deployment Services (WDS) on Windows Server 2003 Service Pack 2 (SP2) servers.

  -OR-

  SIS on Windows Storage Server 2003 R2.

  Note

  If WDS and SIS are not already installed, DPM Setup prompts you for the Windows Server 2003 product CD during the installation.

• Microsoft .NET Framework 2.0.

• Internet Information Services (IIS) 6.0 for Windows Server 2003. (IIS 6.0 is not installed on Windows Server 2003 by default.)

• IIS 7.0 for Windows Server 2008. (IIS 7.0 is not installed on Windows Server 2008 by default. If IIS is not installed before installing SQL Server 2005, SQL Server will not install SQL Server Reporting Services.)

  Note

  For complete protection on a Windows Server 2008 operating system, including system state protection, you must install Knowledge Base article 949779 (https://go.microsoft.com/fwlink/?LinkId=122512).

  Important

  In addition to the default components that IIS 7.0 installs, DPM requires all IIS 7.0 components. For more information, see "Installing the Required Components for Windows Server 2008" in Manually Install Required Windows Components (https://go.microsoft.com/fwlink/?LinkId=100603).

• Microsoft SQL Server 2005 Workstation components.

  You can use an existing remote instance of SQL Server for your DPM database. If you choose to use a remote instance of SQL Server, you must install sqlprep.msi.

  To use an instance of SQL Server on a remote computer, run sqlprep.msi, which is located on the DPM product DVD in the DPM2007\msi\SQLprep folder.

  Verify that the user account you will be using to run the SQL Server service and the SQL Server Agent service has read and execute permissions to the SQL Server installation location.

• Microsoft SQL Server 2005 with Reporting Services.

  If SQL Server Reporting Services is installed on the remote SQL Server, DPM Setup will use that Reporting Service. If SQL Server Reporting Services is not installed on the remote computer running SQL Server, you must install and configure the service on the remote computer running SQL Server.

  Note

  DPM 2007 contains the Standard Edition of SQL Server 2005.

• Microsoft SQL Server 2005 Service Pack 2.

Before you install DPM, you must install the following prerequisites:

• Knowledge Base article 940349, "Availability of a Volume Shadow Copy Service (VSS) update rollup package for Windows Server 2003 to resolve some VSS snapshot issues" (https://go.microsoft.com/fwlink/?LinkId=99034).

• Windows PowerShell 1.0 from https://go.microsoft.com/fwlink/?LinkId=87007.

• Single Instance Storage (SIS) on Windows Server 2008 operating system. For information about installing SIS on Windows Server 2008, see Manually Install Required Windows Components (https://go.microsoft.com/fwlink/?LinkId=100603).

If you choose to manually install the required prerequisite software, you must follow the steps detailed in Manually Install Required Windows Components (https://go.microsoft.com/fwlink/?LinkId=100603).

Yes, if you want to use retail copies of one or more of the prerequisite products for your DPM installation, or in the event that automatic installation of one or more of the DPM prerequisite software products fails, you can install the prerequisite software manually.

If you choose to manually install the prerequisite software, we recommend that you use the settings in the information provided in Manually Installing Prerequisite Software (https://go.microsoft.com/fwlink/?LinkId=100602).

Yes. You can run DPM Setup from a network share by using a Universal Naming Convention (UNC) path. However, you cannot run DPM Setup by using a drive that maps to a network share.

If you experience errors when running DPM Setup from a network share by using a UNC path, follow these steps:

1. Exit DPM Setup.

2. Copy the DPM installation folder to a local folder on the DPM server.

3. Restart the DPM installation from the local installation folder.

Yes. DPM provides Management Packs for Microsoft Operations Manager 2005 (MOM) and System Center Operations Manager 2007. For information about centrally monitoring your DPM servers, see:

• DPM 2007 Management Pack Guide for Microsoft Operations Manager 2005 (https://go.microsoft.com/fwlink/?LinkID=66735)

• DPM 2007 Management Pack Guide for System Center Operations Manager 2007 (https://go.microsoft.com/fwlink/?LinkID=100474)

The DPM Management Pack is not included with the DPM product. To deploy the DPM Management Pack, you must first install (MOM) or Microsoft System Center Operations Manager 2007. To download the DPM Management Packs, see the Management Pack Catalog (https://go.microsoft.com/fwlink/?LinkId=47215).

By using the Microsoft System Center Data Protection Manager (DPM) Management Pack for MOM 2005 or Operations Manager 2007, you can centrally monitor the state of data protection and recovery for multiple DPM servers and the servers that they protect. The DPM Management Pack also monitors key health and performance indicators on DPM servers.

From the MOM or Operations Manager Console, you can monitor DPM and network infrastructure at the same time, analyzing data protection failures in the context of other network failures. From the same console, you can monitor other mission-critical applications, such as Microsoft SQL Server.

For DPM servers, the DPM Management Pack monitors the state of the DPM database and service health, server performance, and key indicators such as disk availability and configuration changes to servers protected by DPM.

For protected servers, the DPM Management Pack monitors the state of connectivity with DPM, data recovery operations for protected servers, and replicas and recovery points that are stored on the DPM server.

Yes. DPM 2007 supports protecting servers across domains, as long as you establish two-way trust across the domains.

Yes, if you have continuous connectivity.

Yes. However, this creates the potential for performance issues. When protecting data over a wide area network (WAN), you should consider doing the following:

• Enable on-the-wire compression.

• Set synchronization to occur only before snapshots to avoid using up valuable bandwidth.

• Enable network bandwidth usage throttling.

• Reduce the schedule for express full backups when protecting application data such as Exchange storage groups or SQL Server databases.

If you want to install protection agents on servers that reside behind a firewall, DPM provides an executable file (DPMAgentInstaller.exe) that performs the following:

• Installs the protection agent prerequisites and the DPM protection agent.

• Configures the target computer to receive commands from the specified DPM computer name.

• Configures the firewall to allow communication with the protected servers.

For more information about installing protection agents behind a firewall, see Installing Protection Agents behind a Firewall (https://go.microsoft.com/fwlink/?LinkId=101313).

To help with firewall configuration, the following table provides details about the protocols and ports used by DPM.

Protocols and Ports Used by DPM

The following table shows the types of data that DPM 2007 protects and the level of data that you can recover using DPM.

DPM 2007 Protectable and Recoverable Data

Following are the data source limits that DPM 2007 can protect and the recommended disk space required per DPM server. These recommendations assume that you meet the DPM server minimum hardware requirements.

In the Data Protection and Recovery section of this FAQ, the DPM 2007 Protectable and Recoverable Data table lists the data sources that DPM protects.

Yes, DPM 2007 protects files on a computer that is configured as a Web server.

Yes, DPM 2007 can run inside a virtual machine as long as the DPM storage pool disks are made available directly to the DPM virtual machine as one of the following:

• Pass-through disks

  Note

  Pass-through disks provide control of the entire disk control unit and access to the guest machine at the disk-device-level (not a VHD).

• iSCSI target disks

• FC SAN target disks

You can also perform backups for the virtual machines by using a DPM agent that is installed on the host computer or by installing the DPM agent directly on the virtual machine.

Yes, DPM 2007 supports protection on Windows Server 2008.

Replicas are full copies of a selected data source that the DPM server creates and maintains to provide data protection. To provide continuous protection of current data, DPM synchronizes the replica with the changes that occur on the protected servers on a recurring schedule. DPM creates the replica once, and thereafter it is only updated with the changes from the protected server.

Synchronization is the process by which DPM transfers data changes from a protected server to a DPM server, and then applies the changes to the replica of the protected data. DPM automatically validates the replica against the production server to ensure that the replication is consistent and has occurred as planned.

To provide you with more versions of your data from which to recover, DPM creates point-in-time copies of the replica — known as recovery points — on a recurring schedule. You access recovery points to recover previous versions of your protected data. When you select a recovery point, DPM provides you with estimates for retention range and maximum data loss. These estimates help you specify a recovery point schedule that provides adequate data protection and helps you meet you recovery goals.

An express full backup is a synchronization operation in which the protection agent transfers a snapshot of all blocks that have changed since the previous express full backup (or initial replica creation, for the first express full backup). The express full backup is used in application data protection. An express full backup of an application server contains multiple recovery points as intervening incremental backups that are saved with the full backup on the DPM server.

Exchange Server has two technologies for backup and recovery; streaming application programming interfaces (APIs) and the Volume Shadow Copy Service (VSS). Streaming APIs allow you to recover a database without taking the entire storage group offline. The Microsoft Exchange Server writer uses VSS, which requires the entire storage group to be offline, even for a single database recovery.

If your tape backup size increases after selecting the Compress Data tape option in the Create New Protection Group Wizard, check your protection group configuration for the following:

• Encrypt data. If encryption is enabled, check with your tape hardware vendor to ensure that your tape hardware allows the tape backup application to turn off compression.

• Compress data. If compression is enabled, check to see if you have files that are compressed that you expect to increase in size such as media files or encrypted files.

If you browse or search for Windows SharePoint Services data that you want to recover, the Search tab lists the correct recovery point time for sites, documents, and folders. The Browse tab displays the backup time for the Windows SharePoint Services farm.

Yes. DPM 2007 supports the following shared disk clusters:

• File servers

• SQL Server 2000 SP4

• SQL Server 2005 SP1

• Exchange Server 2003 SP2

• Exchange Server 2007 (both non-shared disk clusters and shared disk clusters)

• End-user recovery (both clustered and nonclustered resources on clustered file servers)

Use the Install Agents wizard to install the protection agents on all the nodes of the cluster.

1. In DPM Administrator Console, click Management on the navigation bar, and then click the Agents tab.

2. On the Actions pane, click Install.

   The Install Agents wizard starts and displays a list of available servers in the DPM server domain.

3. On the Select Servers page, select one or more clustered servers from the Server name list, click Add, and then click Next.

4. On the Enter Credentials page, type the user name and password for a domain account that is a member of the local administrators group on all selected servers.

5. On the Choose Restart Method page, select the method you want to use to restart the clustered servers.

   Note

   DPM will not restart a server that belongs to Microsoft Cluster Server (MSCS). You must manually restart a server in an MSCS cluster.

6. On the Summary page, click Install Agents to proceed with the installation.

   The results appear on the Task tab to indicate if the installation is successful.

7. On the Installing page, click Close.

Use the Create New Protection Group Wizard to select the data sources to protect on a clustered server. For more information about protecting data sources, in Deploying DPM 2007, see Creating Protection Groups (https://go.microsoft.com/fwlink/?LinkId=100248).

1. In the Create New Protection Group Wizard, on the Select Group Members page, verify that the clustered server that stores the data you want to protect is displayed in the Available members box. If there are servers that are missing, click Add Servers, and then follow the instructions.

2. In the Available members box, expand the server nodes to display the available data sources on the clustered server.

   Note

   After you set up protection groups for non-clustered resources on the physical node, you may not be able to find and select the non-clustered resources under the physical server name. To find the non-clustered resources, expand the network name resources for the cluster, and then search for the resources under the network name.

3. Select and expand the virtual name of the clustered server to view the clustered resources that you want to include in the protection group.

   Note

   You must select the virtual name of the clustered server, not the physical node as you would for a server that is not clustered.

4. After you have selected the members for the protection group, click Next.

On planned failover of a protected cluster node, DPM continues protection. On unplanned failover, DPM alerts the administrator that a consistency check is needed.

For additional information about protecting clustered resources, in the DPM 2007 Planning Guide, see "Clustered Resources" in Planning Protection Groups (https://go.microsoft.com/fwlink/?LinkID=91849).

Yes. DPM 2007 provides a comprehensive set of reports that provide data about protection success and failures, recovery success and failures, and disk and tape utilization. You can also identify common errors and manage circulation of tapes.

Yes. DPM provides scheduled DPM reports delivered as e-mail attachments so that you can monitor data protection trends and analyze data protection statistics.

DPM 2007 supports a number of tape libraries for backup, recovery, and archive of business-critical data. For a list of tape libraries that DPM supports, see DPM 2007 Tested Hardware (https://go.microsoft.com/fwlink/?LinkId=92833).

If your tape libraries do not appear in the Library Management task are of DPM Administrator Console, do the following:

1. In the Management task area, on the Libraries tab, in the Actions pane, click Rescan.

   If the Rescan operation fails, do the following:

   • Verify that the tape library is connected properly and powered on, and then perform the Rescan operation again.

   • In Device Manager, scan for hardware changes, and then perform the Rescan operation again.

2. In Device Manager, verify that the Medium-changer and the library tape drives appear as devices.

   If the library tape drives do not appear, do the following:

   • In Device Manager, scan for hardware changes. DPM will not detect a tape library if the devices do not appear in Device Manager.

3. If the devices appear in Device Manager as Unknown Medium Changer or Unknown Tape Drive, the proper drivers are not installed. Contact your hardware vendor for updated drivers and verify that your hardware has been tested for compatibility with DPM 2007.

Your tape library drives may appear as standalone drives when another application such as Removable Storage holds the library device handle. In this case, DPM 2007 stops and disables the RSM automatically.

If the RSM is enabled and/or started, disable or stop the RSM service.

If your tape libraries do not appear in the DPM 2007 Library Management task area in DPM Administrator Console, but drives appear as standalone drives, do the following:

• If the RSM is enabled, in Administrative Tools, open Services, and then right-click the Removable Storage service, and then click Stop.

If your tape library appears in the Library Management task area of DPM Administrator Console, but your tape drives only appear as standalone drives, do the following:

• If the tape library is connected using a Small Computer Systems Interface (SCSI) drive, connect the drives to the same bus as the tape library, and then perform the operation again.

• If your tape library is in the DPM 2007 Tested Hardware (https://go.microsoft.com/fwlink/?LinkId=92833) table that lists the tape libraries that DPM 2007 supports, verify that you are using the drivers that are specified in the table.

If the above recommendations do not work, DPM 2007 does not support the tape libraries you are using.

When the physical state of your tape drives do not display correctly in DPM Administrator Console, you need to remap the tape drive information.

For information about remapping tape drives, in the DPM Operations Guide, see "Remapping Tape Drives" in Managing Tape Libraries (https://go.microsoft.com/fwlink/?LinkId=91964)

You can enable end users to recover previous versions of files and folders that are protected by DPM. Users select an earlier version of a file or folder by using the familiar Windows Explorer interface or any one of the Microsoft Office 2003 applications. This capability increases productivity and significantly lowers administrative costs.

When you enable end-user recovery by using DPM Administrator Console, the configuration process updates the required permissions in Active Directory.

To view an earlier version of a file, users need Read permission. To recover an earlier version to its original location, users need Read and Write permissions. To recover an earlier version to an alternate location, users need Read permission on the file and Write permission on the alternate location.

Yes. End-user recovery uses Common Internet File System (CIFS), the same protocol that clients use to access shared folders on the file server.

DPM 2007 supports use of any of the following sources for server storage:

• Direct attached storage (DAS).

• Fibre Channel storage area network (SAN)

• Internet SCSI (iSCSI) storage device or SAN, providing that the iSCSI storage device has received Windows Hardware Certification.

You can assign a custom volume to a protection group member, in place of the DPM storage pool. A custom volume is a volume that is not in the DPM storage pool and is specified to store the replica and recovery points for a protection group member.

Any volume that is attached to the DPM server can be selected as a custom volume, except the volume that contains the system and program files. To use custom volumes for a protection group member, two custom volumes must be available: one volume to store the replica and one volume to store the recovery points

The DPM-managed storage pool is sufficient for most business needs; however, you might want a greater amount of control over storage for specific data sources. For example, you have critical data that you want to store using a high-performance logical unit number (LUN) on a storage area network.

No, you cannot add mapped drives to a storage pool.

Yes. However, you can protect only one primary DPM server (the DPM server that protects data sources directly) with another DPM server. DPM 2007 does not support a primary server and a secondary server protecting each other. Additionally, DPM does not support protection using chaining (when a third DPM server is used for protecting a secondary DPM server).

Yes, a DPM server can protect its own databases by backing the databases up to tape. We recommend that you use a unique protection group to back up the DPM server databases, make at least two copies of the backup tapes, and then store each of the backup tapes in a different remote location. For more information, see "Preparing for Disaster Recovery" in Disaster Recovery (https://go.microsoft.com/fwlink/?LinkId=91860) in the DPM 2007 Operations Guide.

Yes. DPM 2007 can protect the system state for any computer on which a DPM protection agent can be installed.

The following table shows the protected components for each system state that DPM backs up:

Yes. DPM 2007 includes a DPM System Recovery Tool (SRT) that you can use to perform bare metal recovery operations for the DPM server and the computers that DPM protects. Using DPM SRT, you can back up the system volume and master boot record by copying the entire volume and using VSS writers to ensure all applications are in a consistent state for the copy.

You can install DPM SRT on Windows Server 2003. The SRT protects both Windows 2003 Server and Windows XP computers.