小編給大家分享一下如何驗證RMAN備份有效性，相信大部分人都還不怎么了解，因此分享這篇文章給大家參考一下，希望大家閱讀完這篇文章后大有收獲，下面讓我們一起去了解一下吧！

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RMAN提供VALIDATE的命令，可以用于校驗備份集的有效性，常用命令如下：
restore validate controlfile;
restore validate database;
驗證命令會建議備份的存在性、完好性和可恢復性，幫助我們確認備份的有效與否。

比如驗證控制文件和參數(shù)文件：

RMAN> restore validate controlfile;

Starting restore at 25-JAN-10
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=388 devtype=DISK

channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /opt/oracle/product/db10g/dbs/c-1341966532-20100125-01
channel ORA_DISK_1: restored backup piece 1
piece handle=/opt/oracle/product/db10g/dbs/c-1341966532-20100125-01 tag=TAG20100125T094817
channel ORA_DISK_1: validation complete, elapsed time: 00:00:02
Finished restore at 25-JAN-10

RMAN> restore validate spfile;

Starting restore at 25-JAN-10
using channel ORA_DISK_1

channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /opt/oracle/product/db10g/dbs/c-1341966532-20100116-00
channel ORA_DISK_1: restored backup piece 1
piece handle=/opt/oracle/product/db10g/dbs/c-1341966532-20100116-00 tag=TAG20100116T033113
channel ORA_DISK_1: validation complete, elapsed time: 00:00:02
Finished restore at 25-JAN-10

驗證全備份一般會很慢，謹慎試驗：

RMAN> restore validate database;

Starting restore at 25-JAN-10
using channel ORA_DISK_1

data file 22 will be created automatically during restore operation
channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /data3/ordrbak/orderfullback_order_20100124_4691
channel ORA_DISK_1: restored backup piece 1
piece handle=/data3/ordrbak/orderfullback_order_20100124_4691 tag=order
channel ORA_DISK_1: validation complete, elapsed time: 00:02:36
channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /data3/ordrbak/orderfullback_order_20100124_4692
channel ORA_DISK_1: restored backup piece 1
piece handle=/data3/ordrbak/orderfullback_order_20100124_4692 tag=order
channel ORA_DISK_1: validation complete, elapsed time: 00:01:45
channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /data3/ordrbak/orderfullback_order_20100124_4693
channel ORA_DISK_1: restored backup piece 1
piece handle=/data3/ordrbak/orderfullback_order_20100124_4693 tag=order
channel ORA_DISK_1: validation complete, elapsed time: 00:00:26
channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /data3/ordrbak/orderfullback_order_20100124_4694
channel ORA_DISK_1: restored backup piece 1
piece handle=/data3/ordrbak/orderfullback_order_20100124_4694 tag=order
channel ORA_DISK_1: validation complete, elapsed time: 00:00:56
channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /data3/ordrbak/orderfullback_order_20100124_4695
channel ORA_DISK_1: restored backup piece 1
piece handle=/data3/ordrbak/orderfullback_order_20100124_4695 tag=order
channel ORA_DISK_1: validation complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /data3/ordrbak/orderfullback_order_20100124_4696
channel ORA_DISK_1: restored backup piece 1
piece handle=/data3/ordrbak/orderfullback_order_20100124_4696 tag=order
channel ORA_DISK_1: validation complete, elapsed time: 00:00:04
channel ORA_DISK_1: starting validation of datafile backupset
channel ORA_DISK_1: reading from backup piece /data3/ordrbak/orderfullback_order_20100124_4697
channel ORA_DISK_1: restored backup piece 1
piece handle=/data3/ordrbak/orderfullback_order_20100124_4697 tag=order
channel ORA_DISK_1: validation complete, elapsed time: 00:00:07
failover to previous backup

data file 22 will be created automatically during restore operation
Finished restore at 25-JAN-10

驗證命令并不會真正執(zhí)行恢復，所以可以減去異機測試等的麻煩。

以上是“如何驗證RMAN備份有效性”這篇文章的所有內(nèi)容，感謝各位的閱讀！相信大家都有了一定的了解，希望分享的內(nèi)容對大家有所幫助，如果還想學習更多知識，歡迎關注創(chuàng)新互聯(lián)-成都網(wǎng)站建設公司行業(yè)資訊頻道！

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