进行RMAN备份时出现ORA-19571错误,导致备份任务终止,具体错误如下:
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup plus archivelog command at 07/10/2015 16:18:43
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 07/10/2015 16:18:24
ORA-19571: archived-log recid 85421 stamp 650564644 not found in control file
错误提示很明显,是因为在控制文件中没有找到某个归档文件记录,导致备份失败,看上去像是控制文件记录被覆盖了。控制文件中的记录分为两类,?一类是循环使用的记录,当记录的solt满时,会覆盖老的记录,记录的保存时间由参数control_file_record_keep_time控制。所以这里首先检查这个参数的设置。
SQL> show parameter control_file
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time integer 15
? ? 参数配置为15天,接下来再检查报错中的归档日志的生成时间
SQL> select recid,SEQUENCE#,ARCHIVED,STATUS,COMPLETION_TIME from v$archived_log where recid = 125609;
? ? RECID SEQUENCE#? ARC S COMPLETION_TIME
---------- ---------- --- - -------------------
? ? 125609 885421? ? YES A 2015-07-08 02:05:59
? ? 从上面的信息看,归档上两天前生成的,该记录在控制文件中不应该过期。为保证备份任务及时完成,不影响下一天的正常业务,首先手动将归档信息注册到控制文件。
RMAN>catalog start with '/arch1/';
? ? 使用上面的命令注册时,在其中一个节点上提示没有发现可注册的文件,使用下面的命令分别对每个归档文件进行注册
run{
catalog archivelog '/arch1/xxx_1_47849_801075830.dbf';
catalog archivelog '/arch1/xxx_1_47850_801075830.dbf';
...省略部分
catalog archivelog '/arch1/xxx_1_47854_801075830.dbf';
catalog archivelog '/arch1/xxx_1_47855_801075830.dbf';
}
? ? 手动注册后备份成功,但为什么归档信息没有正确的保留在控制文件中,接下来做进一步分析。
? 首先检查数据库的alert日志,发现在备份任务失败前出现如下警告:
WARNING: You are creating/reusing datafile /dev/rlvims_control1.
WARNING: You are creating/reusing datafile /dev/rlvims_control1.
WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details.
WARNING: You are creating/reusing datafile /dev/rlvims_control2.
WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details.
WARNING: You are creating/reusing datafile /dev/rlvims_control2.
WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details.
WARNING: You are creating/reusing datafile /dev/rlvims_control3.
WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details.
WARNING: You are creating/reusing datafile /dev/rlvims_control3.
WARNING: Oracle recommends creating new datafiles on devices with zero offset. The command "/usr/sbin/mklv -y LVname -T O -w n -s n -r n VGname NumPPs" can be used. Please contact Oracle customer support for more details.
Expanded controlfile section 28 from 564 to 1128 records
Requested to grow by 564 records; added 3 blocks of records
? ? 这个警告信息是在AIX平台下,没有将数据库文件放置在零偏移的raw logical volumes设备上,下面对这个错误进行验证:
xxx1>dbfsize /dev/rlvims_control1
Database file: /dev/rlvims_control1
Database file type: raw device
Databas