ubuntu

Ubuntu Oracle数据库备份策略

小樊
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2025-04-05 21:26:45
栏目: 云计算

Ubuntu系统下的Oracle数据库备份策略主要依赖于Oracle提供的备份和恢复工具,如RMAN(Recovery Manager)和导出/导入(EXP/IMP)工具。以下是一些常见的备份策略和步骤:

备份策略

  1. 全库备份(Full Backup)
RUN {
    ALLOCATE CHANNEL ch1 DEVICE TYPE disk;
    BACKUP AS COMPRESSED BACKUPSET DATABASE PLUS ARCHIVELOG;
    RELEASE CHANNEL ch1;
}
  1. 增量备份(Incremental Backup)
RUN {
    ALLOCATE CHANNEL ch1 DEVICE TYPE disk;
    BACKUP INCREMENTAL LEVEL 1 DATABASE PLUS ARCHIVELOG;
    RELEASE CHANNEL ch1;
}
  1. 差异备份(Differential Backup)
RUN {
    ALLOCATE CHANNEL ch1 DEVICE TYPE disk;
    BACKUP DIFFERENTIAL DATABASE PLUS ARCHIVELOG;
    RELEASE CHANNEL ch1;
}
  1. 热备份(Hot Backup)
#!/bin/sh
# $header$##bcpyrght#***************************************************************************# $copyright: copyright (c) 2020 veritas technologies llc. all rights reserved $#***************************************************************************#ecpyrght## note: only make modifications to a copy of this file. changes to this file# are lost when this example is overwritten during netbackup upgrade.# delete this comment from the copy.## -----------------------------------------------------------------------------# hot_database_backup.sh# -----------------------------------------------------------------------------# this script uses recovery manager to take a hot (inconsistent) database# backup. a hot backup is inconsistent because portions of the database are# being modified and written to the disk while the backup is progressing.# you must run your database in archivelog mode to make hot backups. it is# assumed that this script will be executed by user root. in order for rman# to work properly we switch user (su -) to the oracle dba account before# execution. if this script runs under a user ac
  1. 逻辑备份(Logical Backup)
expdp username/password@database directory=data_pump_dir dumpfile=backup.exp

备份工具

恢复策略

RUN {
    RESTORE DATABASE;
    RECOVER DATABASE;
    RECOVER ARCHIVELOG;
}

定期执行备份计划

选择合适的备份方法和工具对于确保Ubuntu系统下Oracle数据库的安全性和可恢复性至关重要。建议根据数据库的大小、性能要求和可用性需求,制定相应的备份策略,并定期执行备份任务。

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