postgresql 备份恢复(三) pg_rman

pg_rman是一款专门为postgresql设计的在线备份恢复的工具。其支持在线和基于时间点备份方式，还可以通过创建backup catalog来维护DB cluster备份信息。

看起来好像是模仿oracle的RMAN工具。

 pg_rman特点：

• 使用简单.一个命令即可完成备份和恢复.
•  支持在线全备,增量备份，归档备份.
• 支持备份压缩.通过gzip工具实现页内压缩.
• 自动备份维护.自动删除过期的WAL备份文件.
• 支持备份验证.
• 恢复期间无事务丢失.支持基于PITR的配置文件生成器.

pg_rman平台支持:

代码

   
     

    
      
    
      Tested platforms:
OS Edition PostgreSQL Revision Date
Linux Fedora 
    
      11
    
       
    
      8.4
    
      .
    
      2
    
       
    
      23
    
       
    
      2009
    
      -
    
      12
    
      -
    
      18
    
      
Linux Fedora 
    
      11
    
       
    
      8.3
    
      .
    
      9
    
       
    
      23
    
       
    
      2009
    
      -
    
      12
    
      -
    
      18
    
      
Linux Fedora 
    
      11
    
       
    
      8.2
    
      .
    
      15
    
       
    
      23
    
       
    
      2009
    
      -
    
      12
    
      -
    
      18
    
      

Requirements:

 
    
      *
    
       Linux (and some of UNIXes)
 
    
      *
    
       PostgreSQL 
    
      8
    
      ,
    
      2
    
      , 
    
      8.3
    
      , 
    
      8.4
    
      , and 
    
      8.5
    
      

Unsupported platforms:

 
    
      *
    
       Windows
 
    
      *
    
       PostgreSQL 
    
      8.1
    
       or prior versions. 
   
     

 

pg_rman命令参考：

代码

   
     

    
      
    
      [postgre@daduxiong etc]$ pg_rman 
    
      --
    
      help
pg_rman manage backup
    
      /
    
      recovery of PostgreSQL database.

Usage:
 pg_rman OPTION init
 pg_rman OPTION backup
 pg_rman OPTION restore
 pg_rman OPTION show [DATE]
 pg_rman OPTION show timeline [DATE]
 pg_rman OPTION validate [DATE]
 pg_rman OPTION delete DATE

Common Options:
 
    
      -
    
      D, 
    
      --
    
      pgdata
    
      =
    
      PATH location of the database storage area
 
    
      -
    
      A, 
    
      --
    
      arclog
    
      -
    
      path
    
      =
    
      PATH location of archive WAL storage area
 
    
      -
    
      S, 
    
      --
    
      srvlog
    
      -
    
      path
    
      =
    
      PATH location of server log storage area
 
    
      -
    
      B, 
    
      --
    
      backup
    
      -
    
      path
    
      =
    
      PATH location of the backup storage area
 
    
      -
    
      c, 
    
      --
    
      check show what would have been done

Backup options:
 
    
      -
    
      b, 
    
      --
    
      backup
    
      -
    
      mode
    
      =
    
      MODE full, incremental, or archive
 
    
      -
    
      s, 
    
      --
    
      with
    
      -
    
      serverlog also backup server log files
 
    
      -
    
      Z, 
    
      --
    
      compress
    
      -
    
      data compress data backup with zlib
 
    
      -
    
      C, 
    
      --
    
      smooth
    
      -
    
      checkpoint 
    
      do
    
       smooth checkpoint before backup
 
    
      --
    
      keep
    
      -
    
      data
    
      -
    
      generations
    
      =
    
      N keep GENERATION of full data backup
 
    
      --
    
      keep
    
      -
    
      data
    
      -
    
      days
    
      =
    
      DAY keep enough data backup to recover to DAY days age
 
    
      --
    
      keep
    
      -
    
      arclog
    
      -
    
      files
    
      =
    
      NUM keep NUM of archived WAL
 
    
      --
    
      keep
    
      -
    
      arclog
    
      -
    
      days
    
      =
    
      DAY keep archived WAL modified 
    
      in
    
       DAY days
 
    
      --
    
      keep
    
      -
    
      srvlog
    
      -
    
      files
    
      =
    
      NUM keep NUM of serverlogs
 
    
      --
    
      keep
    
      -
    
      srvlog
    
      -
    
      days
    
      =
    
      DAY keep serverlog modified 
    
      in
    
       DAY days

Restore options:
 
    
      --
    
      recovery
    
      -
    
      target
    
      -
    
      time time stamp up to which recovery will proceed
 
    
      --
    
      recovery
    
      -
    
      target
    
      -
    
      xid transaction ID up to which recovery will proceed
 
    
      --
    
      recovery
    
      -
    
      target
    
      -
    
      inclusive whether we stop just after the recovery target
 
    
      --
    
      recovery
    
      -
    
      target
    
      -
    
      timeline recovering into a particular timeline

Catalog options:
 
    
      -
    
      a, 
    
      --
    
      show
    
      -
    
      all show deleted backup too

Connection options:
 
    
      -
    
      d, 
    
      --
    
      dbname
    
      =
    
      DBNAME database to connect
 
    
      -
    
      h, 
    
      --
    
      host
    
      =
    
      HOSTNAME database server host or socket directory
 
    
      -
    
      p, 
    
      --
    
      port
    
      =
    
      PORT database server port
 
    
      -
    
      U, 
    
      --
    
      username
    
      =
    
      USERNAME user name to connect 
    
      as
    
      
 
    
      -
    
      w, 
    
      --
    
      no
    
      -
    
      password never prompt 
    
      for
    
       password
 
    
      -
    
      W, 
    
      --
    
      password force password prompt

Generic options:
 
    
      -
    
      q, 
    
      --
    
      quiet don
    
      '
    
      t write any messages
    
      

    
       
    
      --
    
      debug debug mode
 
    
      --
    
      help show 
    
      this
    
       help, then exit
 
    
      --
    
      version output version information, then exit

Read the website 
    
      for
    
       details. 
    
      <
    
      http:
    
      //
    
      code.google.com/p/pg-rman/>
    
      

    
      Report bugs to 
    
      <
    
      http:
    
      //
    
      code.google.com/p/pg-rman/issues/list>.
   
     

pg_rman安装：

进入下载http://code.google.com/p/pg-rman/downloads/list

通过解压,然后编译即可使用。

过程非常简单。