Orcale Tutorial Content


Getting Started - البدء مع إدارة قواعد البيانات
  • أنواع مستخدمي قواعد البيانات:
  • مهام مسؤول قاعدة البيانات:
  • SQL Statements:
  • Identifying Your Oracle Database Software Release - تحديد إصدار اوركل
  • About Database Administrator Security and Privileges- أمان وامتيازات مسؤول قاعدة البيانات
  • Database Administrator Authentication - مصادقة مسؤول قاعدة البيانات
  • Creating and Maintaining a Database Password File - إنشاء ملف كلمة المرور
    • Oracle Architectural Components - مكونات قاعدة البيانات أوركل
  • ﻤﻜﻭﻨﺎﺕ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ
  • Oracle Instance
  • Oracle Database
    • Installing Oracle Database - تثبيت الأوركل
  • Installing oracle database 10g in windows
    • Creating and Configuring Database - إنشاء قاعدة البيانات
  • ﺍﻟﺘﺨﻁﻴﻁ ﻟﻘﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ
  • ﺇﻨﺸﺎﺀ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺒﺎﻟﻁﺭﻴﻘﺔ ﺍﻟﻴﺩﻭﻴﺔ علي Windows:
  • ﺇﻨﺸﺎﺀ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﻋﻥ ﻁﺭﻴﻕ ﺍل(DBCA)
  • About Creating an Oracle Database
  • About Selecting a Character Set
  • Prerequisites for Database Creation
  • Creating a Database with the CREATE DATABASE Statement
  • Specifying CREATE DATABASE Statement Clauses
  • Specifying Initialization Parameters
    • Controlling The Database -التحكم في قاعدة البيانات
  • التحكم في قاعدة البيانات - Controlling The Database
  • ﺘﺸﻐﻴل ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ
  • ﺇﻏﻼﻕ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ
  • Opening a Database in Read-Only Mode
  • Opening a Database in Restricted Mode
    • Managing Tablespaces and Data files
  • ﻤﻔﺎﻫﻴﻡ ﻋﺎﻤﺔ ﻋﻥ ﺍل: Tablespaces
  • عملي
    • Control File & Redo Log Files
  • Control File
  • ﺘﻐﻴﻴﺭ ﺍﺴﻡ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ
  • Redo Log Files
    • Administrating Users - إدارة المستخدمين
  • ﺇﻨﺸﺎﺀ ﻭﺇﺩﺍﺭﺓ ﺍﻟﻤﺴﺘﺨﺩﻤﻴﻥ
  • Quota
  • ﻭﺴﻴﻠﺔ ﺍﻟﺘﺤﻘﻴﻕ
  • ﺍﻟﺼﻼﺤﻴﺎﺕ - Privileges
  • ROLES
  • PROFILES
    • Database Security & Monitoring - تأمين ومراقبة قاعدة البيانات
  • Database Security
  • ﻤﺭﺍﻗﺒﺔ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ - AUDITING
    • Oracle Net Services & Database Link & Metrlized Viewِ
  • Oracle Net Services
  • ﺍﻟﺘﺤﻜﻡ ﻓﻲ ﺍﻟﻭﺼﻭل ﻟﻘﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ
  • External Procedures
  • Clients Side
  • Database Link
  • Materialized Views
    • Undo Management & Flashback Technology
  • UNDO MANAGEMENT
  • Flashback Query
  • Flashback Table
  • Flashback Versions Query
  • Flashback Transaction
  • Flashback Drop
  • Flashback Database
    • Managing Shared Servers
  • Why Shared Server
  • Dedicated Server
  • Shared Server Architecture
  • ﻤﺘﻰ ﻨﺴﺘﺨﺩﻡ ﺍل Shared Server ؟
    • Using Globalization Support
  • Globalization
  • ﺍﺨﺘﻴﺎﺭ وتغيير ﺍل Character Set
  • ﻤﺴﺘﻭﻴﺎﺕ ﺍل Globalization
  • ﺍﺴﺘﺨﺩﺍﻡ ﺍل Zones Time
    • Logical Backup & Recovery
  • Use Export Utilities to Export Data
  • TABLES EXPORT Using Export Utilities
  • SCHEMAS EXPORT Using Export Utilities
  • TABLESPACE EXPORT Using Export Utilities
  • DATABASE EXPORT Using Export Utilities
  • Use Import Utilities to Import Data
  • TABLES IMPORT Using Import Utilities
  • SCHEMAS IMPORT Using Import Utilities
  • DATABASE IMPORT Using Import Utilities
  • DATA PUMP
  • TABLES EXPORT Using Data Pump
  • SCHEMAS EXPORT Using Data Pump
  • DATABASE EXPORT Using Data Pump
  • TABLES IMPORT Using Data Pump
  • SCHEMAS IMPORT Using Data Pump
  • DATABASE IMPORT Using Data Pump
  • SQL*Loader
    • Physical Backup & Recovery
  • Physical Backup
  • ﻜﻴﻑ ﻨﻬﻴﺊ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﻟﺘﻌﻤل ﻓﻲ ﺍﻟﻨﻤﻁ ARCHIVELOG؟
  • Cold Backup
  • Full Database Recovery
  • Loss of a Non-SYSTEM Data File
  • Loss of a SYSTEM Data File
  • Loss of an Un-archived Online Log Files
  • Loss of Control Files
  • Loss Unbackup Datafile
  • Damage Tempfile
  • Damage Temporary Tablespace
  • Damage Online Logfile Member
  • Point in Time Recovery
  • Backup and Recovery Options
  • Hot Backup
    • Recovery Manager (RMAN)
  • مقدمة
  • مكونات ال Recovery Manager (RMAN)
  • ﺃﻨﻭﺍﻉ ﺍﻻﺘﺼﺎل ﺒﺎل RMAN
  • ﺨﻴﺎﺭﺍﺕ وأنماط ﺍﻟﻨﺴﺦ ﺍﻹﺤﺘﻴﺎﻁﻰ
  • RMAN Configuration Setting
  • Recovery Catalog
  • RMAN Backups
  • Data Files Backup
  • Tablespaces Backup
  • Archived Redo Log Files Backup
  • Control File Backup
  • Database Backup
  • Incremental Backups
  • RMAN Commands
  • Complete Recovery
  • Incomplete Recovery
  • Restore ControlFile and spfile
    • Managing Resources
  • Consumer Groups
  • Resource Manager Plans
  • Resource Manager Configuration
  • Create Consumer Group
  • Update Consumer Group
  • Delete Consumer Group
  • Privileges & Resource Manager
  • Join To Consumer Group
  • Move Active User To Other Consumer Group
  • Create Resource Manager Plans & Directive
  • Update Resource Manager Plans
  • Update Resource Manager Plan Directives
  • Delete Resource Manager Plan Directives
  • Delete Resource Manager Plans
  • Create Simple Plan
  • Consumer Group Mapping
    • Automating Tasks with the Scheduler
  • The Scheduler Architecture
  • Jobs
  • Programs
  • Schedules
  • Using Programs and Schedules
  • Job Classes
  • Windows
  • (Privileges) ﺍﻟﺼﻼﺤﻴﺎﺕ
  • Job Logs
    • Dealing with Locking
  • Shared & Exclusive Locks
  • Manual Lock Table
  • The Enqueue Mechanism
  • Lock Contention
  • Deadlocks
    • Diagnostic Sources
  • Alert Log
  • Background Trace Files
  • Server-Generated Alerts
  • Editing Thresholds
  • User Trace Files
  • Instance-Level SQL Tracing
  • Session-Level SQL Tracing
    • Dealing With Database Corruption
  • Block Corruption
  • ﺍﻜﺘﺸﺎﻑ ﺍﻟﻜﺘل ﺍﻟﻔﺎﺴﺩﺓ (Detecting Block Corruptions)
  • The DBVERIFY Utility
  • The ANALYZE Command
  • DBMS_REPAIR Backage
  • ﺍﺴﺘﺭﺠﺎﻉ ﺍﻟﻜﺘل ﺍﻟﻔﺎﺴﺩﺓ ﺒﻭﺍﺴﻁﺔ ﺍل:RMAN
    • Managing & Monitoring Memory
  • The System Global Area
  • The Shared Pool
  • The Database Buffer Cache
  • The Default, Keep, and Recycle Pools
  • The Nonstandard Block Size Pools
  • Sizing the Database Buffer Cache
  • The Log Buffer
  • The Large Pool
  • The Java Buffer
  • The Steams Buffer
  • Automatic Shared Memory Management
  • Enable Automatic Shared Memory Management
  • The Program Global Area (PGA)
    • Performance Tunning
  • Invalid Objects
  • Unusable Indexes
  • Rebuild Invalid Inexes
  • Optimizer Statistics
  • Gathering Statistics
  • The Automatic Workload Repository (AWR)
  • The Automatic Database Diagnostic Monitor (ADDM)
  • The SQL Tuning Advisor
  • The SQL Access Advisor
  • The Mean Time to Recover Advisor
  • The Segment Advisor
  • The Undo Advisor

    • Recovery Manager (RMAN)

    مكونات ال Recovery Manager (RMAN)

    ﺍﻟﺸﻜل 1-15 ﻴﻭﻀﺢ ﻤﻜﻭﻨﺎﺕ ﺍل(RMAN):

    1-                                  RMAN Executable: ﻭﻫﻭ ﻋﺒﺎﺭﺓ ﻋﻥ ﻤﻠﻑ ﺘﻨﻔﻴﺫﻱ ﻴﺸﺒﻪ ﻤﻠﻑ ﺍﻟﺘﺼﺩﻴﺭ EXP.exe ﻭﺃﻴﻀﺎﹰ ﻤﻠﻑ ﺍﻻﺴﺘﻴﺭﺍﺩ IMP.exe ﻭﻋﻨﺩ ﺘﺸﻐﻴل

                                         ﻫﺫﺍ ﺍﻟﻤﻠﻑ ﺘﻔﺘﺢ ﻟﻙ ﻨﺎﻓﺫﺓ ﻋﻠﻴﻬﺎ ﺇﺸﺎﺭﺓ ﺍﻟﻤﺤﺙ <RMAN ﺒﺤﻴﺙ ﻴﻘﺒل ﺍﻷﻭﺍﻤﺭ ﺍﻟﺘﻲ ﺘﻜﺘﺏ ﻋﻠﻴﻪ ﻭﻴﻘﻭﻡ ﺒﺘﺤﻭﻴﻠﻬﺎ ﺇﻟﻰ ﺴﻠﺴﻠﺔ ﺨﻁﻭﺍﺕ

                                          ﻴﺘﻡ ﺘﻨﻔﻴﺫﻫﺎ ﻋﻠﻰ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻟﻤﺴﺘﻬﺩﻓﺔ.

    2-                                  Target Database: ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻟﻤﺴﺘﻬﺩﻓﺔ ﻭﻫﻰ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻟﺘﻲ ﻨﺭﻴﺩ ﻋﻤل ﻨﺴﺦ ﺍﺤﺘﻴﺎﻁﻲ ﻟﻬﺎ ﺒﻭﺍﺴﻁﺔ ﺍلRMAN.

    3-                                  RMAN Repository: ﻴﺘﻡ ﻓﻴﻪ ﺤﻔﻅ ﺠﻤﻴﻊ ﺍﻟﻤﻌﻠﻭﻤﺎﺕ ﻋﻥ ﻋﻤﻠﻴﺎﺕ ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ ﻭﺍﻻﺴﺘﺭﺠﺎﻉ ﻭﺃﻴﻀﺎﹰ ﻤﻌﻠﻭﻤﺎﺕ ﻋﻥ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ 

                                          ﺍﻟﻤﺴﺘﻬﺩﻓﺔ ﻭﻫﻴﻜﻠﺘﻬﺎ ﻭﺃﻴﻀﺎﹰ ﻴﺤﻔﻅ ﺒﻴﺎﻨﺎﺕ ﺍﻟﺘﻬﻴﺌﺔ ﻟلRMAN Configuration Settings) RMAN) ﻭﻴﺘﻡ ﺤﻔﻅ ﺍل RMAN Repository ﺩﺍﺌﻤﺎً

                                          ﻓﻲ ﻤﻠﻑ ﺍﻟﺘﺤﻜﻡ ﻓﻲ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻟﻤﺴﺘﻬﺩﻓﺔ Control File ﻭﻟﻜﻥ ﻴﺠﺏ ﺍﻻﻨﺘﺒﺎﻩ ﺇﻟﻰ ﺃﻥ ﻤﺩﺓ ﺍﻻﺤﺘﻔﺎﻅ ﺒﻤﻌﻠﻭﻤﺎﺕ ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ ﻓﻲ

                                         ﻤﻠﻑ ﺍﻟﺘﺤﻜﻡ ﺘﻌﺘﻤﺩ ﻋﻠﻰ ﺍﻟﻤﺘﻐﻴﺭ CONTROL_FILE_RECORD_KEEP_TIME الذي يحوي ﻗﻴﻤﺔ ﺘﻤﺜل ﻋﺩﺩ ﺍﻷﻴﺎﻡ ﻟﻼﺤﺘﻔﺎﻅ ﺒﻤﻌﻠﻭﻤﺎﺕ

                                    ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ ﻗﺒل ﺃﻥ ﻴﺘﻡ ﺍﺴﺘﺨﺩﺍﻡ ﻨﻔﺱ ﺍﻟﺤﻘﻭل ﻟﻜﺘﺎﺒﺔ ﻤﻌﻠﻭﻤﺎﺕ ﺠﺩﻴﺩﺓ.

    4 -                            Recovery Catalog: ﻻﺤﻅ ﻤﻌﻲ ﺃﻥ ﻤﻌﻠﻭﻤﺎﺕ ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ 

                                    ﺍﻟﺘﻲ ﻴﺘﻡ ﺤﻔﻅﻬﺎ ﻓﻲ ﻤﻠﻑ ﺍﻟﺘﺤﻜﻡ ﻫﻲ ﺒﻴﺎﻨﺎﺕ ﻤﺅﻗﺘﺔ ﻜﻤﺎ ﺃﻨﻪ ﻟﻭ ﻓﻘﺩﻨﺎ ﻤﻠﻑ ﺍﻟﺘﺤﻜﻡ ﻓﻲ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻟﻤﺴﺘﻬﺩﻓﺔ ﻨﻜﻭﻥ ﻗﺩ ﻓﻘﺩﻨﺎ ﻫﺫﻩ ﺍﻟﻤﻌﻠﻭﻤﺎﺕ

                                    ﻟﺫﺍ ﻭﻓﺭﺕ ﺸﺭﻜﺔ ﺍﻭﺭﻜل ﺨﻴﺎﺭ ﺁﺨﺭ ﻟﻼﺤﺘﻔﺎﻅ ﺒﻬﺫﻩ ﺍﻟﻤﻌﻠﻭﻤﺎﺕ ﺃﻱ ﺍﻻﺤﺘﻔﺎﻅ ﺒﺎلRMAN Repository ﻓﻲ ﻗﺎﻋﺩﺓ ﺒﻴﺎﻨﺎﺕ ﺃﺨﺭﻯ ﺘﺴﻤﻰ 

                                    ﺍلRecovery Catalog، ﺃﻴﻀﺎﹰ ﻴﺘﻡ ﻓﻴﻬﺎ ﺤﻔﻅ RMAN SCRIPTS.

    5-                            Flash Recovery Area: ﻭﻫﻭ ﻋﺒﺎﺭﺓ ﻋﻥ ﻤﺴﺎﺤﺔ ﻋﻠﻰ ﺍﻟﺩﻴﺴﻙ ﻴﺘﻡ ﺍﻟﺘﺤﻜﻡ ﻓﻴﻬﺎ ﻋﻥ ﻁﺭﻴﻕ ﺍﻻﻭﺭﻜل ﺒﺤﻴﺙ ﻴﺘﻡ ﻓﻴﻬﺎ ﺘﺨﺯﻴﻥ ﻤﻠﻔﺎﺕ ﺍﻟﻨﺴﺦ 

                                   ﺍﻻﺤﺘﻴﺎﻁﻲ ﻭﻴﺘﻡ ﺇﺩﺍﺭﺓ ﻫﺫﻩ ﺍﻟﻤﺴﺎﺤﺔ ﻭﺍﻟﺘﺤﻜﻡ ﻓﻴﻬﺎ ﻋﻥ ﻁﺭﻴﻕ ﺍﻻﻭﺭﻜل ﻭﻴﺘﻡ ﺘﺤﺩﻴﺩ ﻫﺫﻩ ﺍﻟﻤﺴﺎﺤﺔ ﺒﻭﺍﺴﻁﺔ ﺍﻟﻤﺘﻐﻴﺭ DB_RECOVERY_FILE_DEST

                                   ﻭﻫﻭ ﻟﺘﺤﺩﻴﺩ ﺍﻟﻤﺴﺎﺭ ﻭﺃﻴﻀﺎﹰ ﺍﻟﻤﺘﻐﻴﺭ DB_RECOVERY_FILE_DEST_SIZE ﻟﺘﺤﺩﻴﺩ ﺤﺠﻡ ﻫﺫﻩ ﺍﻟﻤﺴﺎﺤﺔ، ﺃﻤﺎ ﻋﻤﻠﻴﺔ ﺇﺩﺍﺭﺓ ﻫﺫﻩ ﺍﻟﻤﺴﺎﺤﺔ ﻓﺘﻜﻭﻥ ﻋﻥ ﻁﺭﻴﻕ

                                   ﺍﻻﻭﺭﻜل ﺤﻴﺙ ﻴﺘﻡ ﺘﺤﺩﻴﺩ ﻓﺘﺭﺓ ﺍﻻﺤﺘﻔﺎﻅ ﺒﻤﻠﻔﺎﺕ ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ ﻭﺃﻴﻀﺎﹰ ﺤﺫﻑ ﺍﻟﻤﻠﻔﺎﺕ ﺍﻟﻘﺩﻴﻤﺔ ﺍﻟﻤﻨﺘﻬﻴﺔ ﻭﺯﻴﺎﺩﺓ ﺤﺠﻡ ﻫﺫﻩ ﺍﻟﻤﺴﺎﺤﺔ ﺇﺫﺍ ﺘﻁﻠﺏ ﺍﻷﻤﺭ

                                  ﻭﻏﻴﺭﻫﺎ ﻤﻥ ﺇﺠﺭﺍﺀﺍﺕ ﻹﺩﺍﺭﺓ ﻫﺫﻩ ﺍﻟﻤﺴﺎﺤﺔ ﻴﺘﻡ ﻋﻥ ﻁﺭﻴﻕ ﺍﻻﻭﺭﻜل.

    6 -                         Enterprise Manager: ﻜﺎﻨﺕ ﺍﻟﻤﺸﻜﻠﺔ ﺴﺎﺒﻘﺎﹰ ﻓﻲ ﻜﺘﺎﺒﺔ ﺍﻟﻜﻭﺩ ﻟﻌﻤﻠﻴﺔ ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ ﻭﺍﻻﺴﺘﺭﺠﺎﻉ ﻭﺇﺩﺍﺭﺓ ﺍل Recovery Flash Area،

                                 ﻭﻟﻜﻥ ﻭﻓﺭﺓ ﺍﻭﺭﻜل ﻭﺍﺠﻬﺔ ﺘﻌﺎﻤل ﻟﺤل ﻫﺫﻩ ﺍﻟﻤﺸﻜﻠﺔ ﻭﻫﻰ ﺍل Manager Enterprise ﻓﺘﺴﺘﻁﻴﻊ ﻋﻤل ﺠﻤﻴﻊ ﺍﻟﻤﻬﺎﻡ ﺩﻭﻥ ﻜﺘﺎﺒﺔ ﺃﻱ كود.

    7-                          Auxiliary Database: ﻫﻲ ﻋﺒﺎﺭﺓ ﻋﻥ ﻗﺎﻋﺩﺓ ﺒﻴﺎﻨﺎﺕ ﻴﺘﻡ ﺇﻨﺸﺎﺅﻫﺎ ﺒﻭﺍﺴﻁﺔ ﺍلRMAN ﻭﻫﻰ ﻋﺒﺎﺭﺓ ﻋﻥ ﻨﺴﺨﺔ ﻤﻥ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ 

                                 ﺍﻟﻤﺴﺘﻬﺩﻓﺔ ﻴﺘﻡ ﺇﻨﺸﺎﺅﻫﺎ ﻟﻌﺩﺓ ﺃﻏﺭﺍﺽ ﻤﻨﻬﺎ ﻋﻤﻠﻴﺎﺕ ﺍﻻﺨﺘﺒﺎﺭ ﺇﺫ ﻻ ﻴﻤﻜﻥ ﺇﺠﺭﺍﺀ ﺍﻻﺨﺘﺒﺎﺭﺍﺕ ﻋﻠﻰ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻷﺼﻠﻴﺔ، ﺃﻴﻀﺎﹰ ﻓﻲ ﺒﻌﺽ

                                 ﺍﻷﺤﻴﺎﻥ ﻗﺩ ﻨﺤﺘﺎﺝ ﺇﻟﻴﻬﺎ ﻋﻨﺩ ﻋﻤل Tablespace Point-in-Time Recovery ﻭﻫﻰ ﻋﻤﻠﻴﺔ ﺇﺭﺠﺎﻉ ﺍلTablespace ﺇﻟﻰ ﺍﻟﻭﺭﺍﺀ ﺩﻭﻥ ﺍﻟﺘﺄﺜﻴﺭ ﻋﻠﻰ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ

                                ﻓﻴﺘﻡ ﺍﻟﺘﻌﺎﻤل ﻤﻊ ﻫﺫﺍ ﺍﻹﺠﺭﺍﺀ ﺒﺎﻋﺘﺒﺎﺭ ﺍلAuxiliary Database ﻜﻤﺨﺯﻥ ﻤﺅﻗﺕ ﺃﺜﻨﺎﺀ ﻋﻤل ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻟﻤﺴﺘﻬﺩﻓﺔ،

                                ﺃﻴﻀﺎﹰ ﻴﻤﻜﻥ ﺃﻥ ﻨﺘﻌﺎﻤل ﻤﻌﻬﺎ ﻙStandby Database ﻓﻲ ﺤﺎﻟﺔ ﺤﺩﻭﺙ ﻤﺸﻜﻠﺔ ﻓﻲ ﻗﺎﻋﺩﺓ ﺍﻟﺒﻴﺎﻨﺎﺕ ﺍﻟﻤﺴﺘﻬﺩﻓﺔ ﻴﺘﻡ ﺘﺤﻭﻴل ﺍﻟﻌﻤل ﺇﻟﻴﻬﺎ ﺩﻭﻥ ﺃﻥ ﻨﻔﻘﺩ ﺒﻴﺎﻨﺎﺕ.

    8 -                       Channel: ﻭﻫﻭ ﻋﺒﺎﺭﺓ ﻋﻥ ﺠﻠﺴﺔ ﻋﻤل ﻴﺘﻡ ﻤﻥ ﺨﻼﻟﻬﺎ ﻋﻤل ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ ﻭﺍﻻﺴﺘﺭﺠﺎﻉ، ﻭﻴﺘﻡ ﺇﻨﺸﺎﺅﻫﺎ ﻴﺩﻭﻴﺎﹰ ﻋﻨﺩ ﻜﺘﺎﺒﺔ ﺍﻟﻜﻭﺩ ﺃﻭ ﺃﻟﻴﺎﹰ ﻋﻥ ﻁﺭﻴﻕ ﺘﻬﻴﺌﺘﻪ ﺍلRMAN.

    9-                       (Media Management Library (MML: تستطيع ﺍلRMAN ﺇﺭﺴﺎل ﻤﻠﻔﺎﺕ ﺍﻟﻨﺴﺦ ﺍﻻﺤﺘﻴﺎﻁﻲ (Backup) ﺇﻟﻰ ﺍﻟﺩﻴﺴﻙ ﺃﻭ ﺍلMML، Tape ﻋﺒﺎﺭﺓ ﺒﺭﻨﺎﻤﺞ ﺘﺴﺘﺨﺩﻤﻪ

                               ﺍلRMAN ﻹﺭﺴﺎل ﺍﻟﻤﻠﻔﺎﺕ ﺇﻟﻰ ﺍلTape.

     

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