使用engine-backup程序

简要说明.
数据是一定不能丢的，OVIRT开发此脚本程序帮助您实现这一目标。

engine-backup是将备份和恢复统一到一起的程序，根据用户的参数而做区别。

先来查看engine-backup的使用帮助：

  1.  engine-backup --help
  2. engine-backup: backup and restore ovirt-engine environment
  3. USAGE:
  4.     /usr/bin/engine-backup [--mode=MODE] [--scope=SCOPE] [--file=FILE] [--log=FILE]
  5.  MODE is one of the following:
  6.     backup                  backup system into FILE
  7.     restore                 restore system from FILE
  8.  SCOPE is one of the following:
  9.     all                     complete backup/restore (default)
  10.     db                      database only
  11.  --file=FILE                file to use during backup or restore
  12.  --log=FILE                 log file to use
  13.  --change-db-credentials    activate the following options, to restore
  14.                             the database to a different location etc.
  15.                             If used, existing credentials are ignored.
  16.  --db-host=host             set database host
  17.  --db-port=port             set database port
  18.  --db-user=user             set database user
  19.  --db-passfile=file         set database password - read from file
  20.  --db-password=pass         set database password
  21.  --db-password              set database password - interactively
  22.  --db-name=name             set database name
  23.  --db-secured               set a secured connection
  24.  --db-secured-validation    validate host

以下是使用全部参数的例子：

  1.  engine-backup --mode=backup --scope=all --file=backup --log=backup.log --change-db-credentials --db-host=localhost --db-port=5432 --db-user=engine --db-password=ffdC9lhX --db-name=engine
  2. Backing up...
  3. Done.

将backup这个文件，放到您的备份环境中，最好是远程的。

Note

backup是经过tar,bzip2打包的，所以您打算手动查看请使用如下命令行：

  1. tar -jxvf backup