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DPM 2010 Glossary

업데이트 날짜: 2010년 1월

적용 대상: System Center Data Protection Manager 2010

 

Term Definition

Actions pane

The right pane in the DPM Administrator Console. The Actions pane lists the operations that an administrator can perform within a selected task area.

autoloader

A robotic device that automatically loads storage media into a computer drive.

backup shadow copy

A shadow copy of a replica created by the DpmBackup command-line tool. In DPM, backup shadow copies are used to archive replicas to tape.

bare-metal recovery

A feature that helps you recover a system that will not start.

change journal

A feature that tracks changes to NTFS volumes, including additions, deletions, and modifications. The change journal exists on the volume as a sparse file.

cleaning tape

A tape used to clean heads on a tape drive.

consistency check

The process by which DPM checks for and corrects inconsistencies between a protected volume and its replica. A consistency check is performed only when normal mechanisms for recording changes to protected volumes and for applying those changes to replicas have been interrupted.

custom volume

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.

data protection

The process of protecting data from loss or corruption by centrally creating and maintaining replicas and shadow copies of the data. DPM is designed to provide short-term disk-based backup, to support rapid and reliable recovery of data.

data source

A share, volume, database, storage group, or system state that is a member of a protection group.

detailed inventory

The reading of the header area of a tape in the library to identify the on-media identifier (OMID) on each tape.

Details pane

The lower left pane in the DPM Administrator Console. The Details pane provides detailed information about an item selected in the Display pane.

dismount

To remove a removable tape or disc from a drive.

Display pane

The upper left pane in the DPM Administrator Console. The Display pane provides information and access to functionality for the selected task area.

DPM

Microsoft server software that supports continuous disk-based backup and recovery on Windows Server-based networks.

DPM Administrator Console

A Microsoft Management Console (MMC) snap-in that provides access to the administrative functions of DPM. DPM Administrator Console allows administrators to configure data protection, perform data recovery operations, and monitor and report on these activities.

DPM Agent Coordinator

The service that manages installation and uninstallation of the DPM protection agent.

DPM Alerts log

A log that stores DPM alerts as Windows events so that the alerts can be displayed in Microsoft Operations Manager (MOM).

DPM database

The SQL Server database that stores DPM settings and configuration information.

DPM Management Pack

A licensed set of processing rules, filters, and alerts, which can be imported onto a MOM Management Server to enable an administrator to centrally monitor data protection, state, health, and performance of multiple DPM servers in Microsoft System Center.

DPM Management Shell

The command shell, based on Windows PowerShell (Powershell.exe), that makes available the cmdlets that perform functions in Data Protection Manager.

DPM protection agent

Software, installed on a server, that tracks changes to protected data and transfers the changes to the DPM server. The protection agent also identifies data on a server that can be protected and is involved in the recovery process.

DPM protection agent service

The component of DPM that synchronizes replicas of protected data with the data sources. The DPM protection agent service receives changes to protected data from the servers and applies the changes to the replicas on the DPM server.

DPM service

The core component of DPM. The DPM service manages all core DPM operations, including replica creation, synchronization, and shadow copy creation.

DPM Writer service

A service that manages backup shadow copies of DPM replicas, and backups of the DPM and Report databases, for purposes of data archival. The DPM Writer service is invoked by the DpmBackup command-line tool.

DPMADSchemaExtension

A command-line tool that enables a schema administrator to configure Active Directory for the purpose of enabling end-user recovery.

DpmBackup

A command-line tool that enables an administrator to archive the contents of a DPM server by using tape backup software that is not specifically designed for use with DPM.

DPMDBReaders group

A group, created during DPM installation, that contains all accounts that have read-only access to the DPM database. The DPMReport account is a member of this group.

DpmPathMerge

A command-line tool that removes extraneous path information from data that has been restored to a DPM server from tape.

DPMReport account

The account that the Web and NT services of SQL Server Reporting Services use to access the DPM database. This account is created when an administrator configures DPM reporting.

DpmSync

A command-line tool that provides disaster recovery functionality for DPM. DpmSync restores the DPM database and the Report database, and synchronizes the DPM database with the state of the storage pool and the installed DPM File Agents.

end-user recovery

A feature that enables an end user to independently recover data by retrieving a shadow copy. This feature requires the shadow copy client software.

enterprise license

A license that authorizes protection of both file and application resources on a single computer.

entry pruning

The process of removing entries from the catalog.

express full backup

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).

fast inventory

The reading of the barcode of each tape in the library.

free tape

A tape that is available to be written to by operations such as backup or copy.

FsPathMerge

A command-line tool that removes extraneous path information from data that has been restored to a protected file server from tape.

imported tape

A tape that contains content that was created by another DPM server.

insert/eject port

A port in a library that transports tapes to and from library slots.

MsDpmProtectionAgent.exe

The protection agent service.

MsDpmSnAgent.exe

The storage node agent service.

MSDPMTrustedMachines group

A group that contains the domain accounts for file servers that are authorized to communicate with the DPM server. DPM uses this group to ensure that only file servers that have the DPM File Agent installed from a specific DPM server can respond to calls from that server.

primary DPM server

A DPM server that protects file or application data sources.

protected computer

A computer that contains data sources that are protection group members.

protected member

A data source within a protection group.

protected server

A server that contains data sources that are protection group members.

protection

The process of protecting data from loss or corruption by centrally creating and maintaining replicas and shadow copies of the data. DPM is designed to provide short-term disk-based backup, to support rapid and reliable recovery of data.

protection configuration

The collection of settings that are common to a protection group; specifically, the protection group name, disk allocations, replica creation method, network bandwidth throttling, and on-the-wire compression.

protection group

A collection of data sources that share the same protection configuration and schedule.

protection group member

A data source within a protection group.

protection plan

The collection of recurring job definitions and schedules associated with a protection group.

protection policy

The collection of recurring job definitions and schedules associated with a protection group.

prune

To remove entries from the tape catalog.

recovery

After a system failure, the restoration of lost data or the reconciliation of conflicting or erroneous data.

recovery collection

The aggregate of all recovery jobs associated with a single recovery operation.

recovery goal

One of the goals that need to be met during recovery. The following three are possible: recovery range, data loss tolerance, and frequency of recovery points for protected data.

recovery point

The date and time of a previous version of a data source that is available for recovery from media that is managed by DPM.

recovery point volume

A volume on the DPM server that contains the shadow copies and recovery points for a protected data source.

replica

A complete copy of protected data residing on a single volume on the DPM server. A replica is created for each protected data source after it is added to its protection group. With co-location, multiple data sources can have their replicas residing on the same replica volume.

replica creation

The process by which a full copy of data sources, selected for inclusion in a protection group, is transferred to the DPM storage pool. The replica can be created over the network from live data on the file server or from a tape backup system. Replica creation is an initialization process that is performed for each volume when the volume is added to a protection group.

replica volume

A volume on the DPM server that contains the replica and shadow copies for a protected volume.

Report database

The SQL Server database that stores DPM reporting information.

ReportServer service

The local report service that manages, executes, renders, schedules, and delivers DPM reports.

restore

In DPM, the process by which an administrator retrieves a protected file or rebuilds a DPM server by using data that has been archived to tape. Restoring data requires use of tape backup software.

retention range

The duration of time for which the data should be available for recovery.

secondary DPM server

A DPM server that protects one or more primary DPM servers in addition to file and application data.

shadow copy

A static image of a set of data, such as the records displayed as the result of a query.

shadow copy client software

Client software that enables an end user to independently recover data by retrieving a shadow copy.

snapshot

A static image of a set of data, such as the records displayed as the result of a query.

SQL Agent service

The SQL Server agent (SQLAgent$MICROSOFT$DPM$) that manages the DPM jobs schedule.

SQL Server service

The SQL Server service that manages the DPM database.

storage pool

In DPM, a set of disks that store replicas, shadow copies, and transfer logs for protected data.

suspect tape

A tape that has conflicting identification information, such as the barcode or the on-media identifier.

synchronization

The process by which DPM transfers changes from the protected server to the DPM server, and applies the changes to the replica of the protected volume.

synchronization log

A hidden file, stored on a protected volume, in which the DPM File Agent records changes to data since the last synchronization job.

synchronization with consistency check

A feature that enables the user to check for and correct inconsistencies between a protected volume and its replica.

tape catalog

A catalog that maps data to the tape on which the data is stored.

tape set

An ordered collection of backup tapes written to by one or more backup operations using a constant number of backup devices.

task area

A grouping of related tasks in DPM Administrator Console. The console has five task areas: Monitoring, Protection, Recovery, Reporting, and Management.

transfer log

A log, located on the DPM server, that stores pending changes to a replica.

unknown tape

Tape that has not been identified by the DPM server.

unrecognized tape

A tape that contains content that was not created by DPM.

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