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Exchange Server 2003 : Exchange

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Exchange Server 2003 : Exchange

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    1. Exchange Server 2003 ?????????: Exchange????

    2. ?? AD?????? Exchange????????? ???????????

    3. ??????? Ntds.dit – AD????? Edbxxxxx.log – ???? Edb.chk – ????? Res1.log and Res2.log – ?????? ?????????? (10mb for AD) ????????DC?????? Domain data (????…) Configuration data (list of domains…) Schema data (definition of all objects…)

    4. ?????? ????????: ?????? (boot files) ????? COM+?????? SYSVOL?? ?????????? System State, system disk contents, and the SYSVOL folder ???????? ??60 days ??????60????????,??????? Backup data from a DC can only be used to restore that DC

    5. ????AD???(??) Determine the type of disaster Database corruption Damaged disks DC hardware failure Software failure – server cannot boot Data corruption Accidentally deleted object from directory Methods to restore Windows 2003 DC: Re-installation Backup

    6. Exchange???????????? ????IIS?metabase System state backup ?????????? Users, Groups, and Contacts. Replicated to GCs Most Exchange information placed on existing objects are replicated between Global Catalogs ??????Exchange???? Exchange System Objects Public Folder Directory entries Active Directory Connector (ADC) settings

    7. E2K????

    8. ???????

    9. E2K????

    10. ????? ???????? ???????? AD??? ?? RAID?? ????? ??? Deleted Data Retention ??????????????(MOM) ??SLA????? 99%? 87???downtime 99.9%? 8???downtime 99.95%? ??5???downtime ???,????????? (????)

    11. ESTABLISH DISASTER RECOVERY SERVICE LEVEL AGREEMENTS Availability: Establishes when the system is available for use. Measured in percentage of time that the system is scheduled to be in operation. Reliability: Covers how often the system is inaccessible due to unscheduled outages. Measured in percentage of time that the system is operational during scheduled operational times. The inverse of availability. Planned outage: Establishes and defines specific hours for planned outages for maintenance or other purposes. Restoration time: Establishes the maximum time that the restoration efforts must not exceed. Data retention period: Establishes the maximum time that user data is retained and can be restored via backup or other measures. Message integrity: Guarantees that messages and attachments will arrive intact and not be corrupted as they travel throughout the organization.

    12. ???? ?????????? ???????? ????? ??Site?????

    13. ?????????? ???Exchange 2000, ???????Recovery Server ???????????Windows 2000 ?????? ??ForestPrep, ????????????? ??Exchange System???? ??ESM?????????????? ??Exchange 2000????????(?????????) ???????????????????? Dismount???,?????? ??????? ???? ???Exchange 2003, ????Recovery storage group http://support.microsoft.com/default.aspx?scid=kb;en-us;824126

    14. Recovery Storage Group RSG per Server/ Information Store Restore mailbox DBs from same SG Restore SG/DBs from same AG User mailboxes remain disconnected Only MAPI protocol supported Restores default into RSG Active/Passive one restore storage group per EVS ONE recovery storage group per cluster supported

    15. ???????? ?????????? ???? ???????-1080 ?? Three layers of corruption that can occur Page level ESE level Store level To remove corruption Restore an uncorrupted backup of the database Repair the database Expunge the corrupted pages from the database Salvage data and generate a new database

    16. Errors 1018 and 1019 Error 1018: JET_errReadVerifyFailure Bad checksum / Wrong page number Hardware / Firmware File system corruption How serious are 1018 Errors? During normal operation (somewhat serious) During startup (likely fatal) During backup (may be minor) Error 1019: JET_errPageNotInitialized What causes Error 1019? Special case of error 1018 (page is replaced with zeroes) Bad page links

    17. Errors 1022 and 1216 Error 1022: JET_errDiskIO Disk I/O failure File damage or truncation File locked by another process Anti-virus software Error 1216 (Q296843) files in the database's running set are missing or have been replaced When storage group starts system analyses header information If logs are missing: Restore the database from backup Repair the database by using ESEUTIL /P followed by ESEUTIL /D and ISINTEG -fix Q296843 – more details

    18. ???????? ?????????? NTBackup Eseutil /cc Eseutil /p XADM: Offline Backup and Restore Procedures for Exchange 2000 Q296788 XADM: How Log Files Are Replayed During Exchange 2000 Restore Q232922

    19. ESEUtil ESEUTIL is an offline utility, meaning that the databases need to be dismounted before you can run ESEUTIL against them. Dumping Header information (/m) – Header information from EDB, STM, LOG and CHK files can be viewed. Offline Defragmentation (/d) – This command can be used to compact the database files. Integrity Check (/g) – Checks the health of the database files without making changes. Database Repair (/p) – Repairs a damaged database. Warning: this will delete data. Hard Recovery (/c) – Various hard recovery functions including initiating hard recovery and viewing the Restore.env file. Soft Recovery (/r) – Initiates soft recovery of database. Checksum (/k) – Performs checksum of pages within a database file.ESEUTIL is an offline utility, meaning that the databases need to be dismounted before you can run ESEUTIL against them. Dumping Header information (/m) – Header information from EDB, STM, LOG and CHK files can be viewed. Offline Defragmentation (/d) – This command can be used to compact the database files. Integrity Check (/g) – Checks the health of the database files without making changes. Database Repair (/p) – Repairs a damaged database. Warning: this will delete data. Hard Recovery (/c) – Various hard recovery functions including initiating hard recovery and viewing the Restore.env file. Soft Recovery (/r) – Initiates soft recovery of database. Checksum (/k) – Performs checksum of pages within a database file.

    20. ESEUTIL /m: Dumping Information

    21. ESEUTIL /d: Offline Defrag

    22. ESEUTIL /c: Hard Recovery

    23. ESEUTIL /p: Database Repair

    24. ????? ?? /disasterrecovery ?????? http://support.microsoft.com/default.aspx?scid=kb;en-us;257415 ???Exchange?DC??????????

    25. ??Site????? ????????? ????????????????? ?????????????

    26. ???? http://www.microsoft.com/Exchange/techinfo/deployment/2000/Terminology.asp http://www.microsoft.com/Exchange/techinfo/deployment/2000/E2Krecovery.asp http://www.microsoft.com/Exchange/techinfo/deployment/2000/MailboxRecover.asp MUST READ Disaster Recovery for Microsoft Exchange 2000 Server.pdf Exchange 2000 Disaster Recovery Best Practices http://www.windowsitlibrary.com/Content/628/05/1.html

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