RMAN备份失败: ORA-19502 & ORA-27072: File I/O error

早上检查一ORACLE数据库的RMAN备份的邮件时，发现出现了ORA-27072: File I/O error等错误，具体信息如下所示：

channel ORA_DISK_1: starting piece 1 at 23-MAR-15

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of backup plus archivelog command at 03/23/2015 03:48:02

ORA-19502: write error on file "/u04/backup/backupsets/ora_df875072537_s15615_s1", blockno 182657 (blocksize=8192)

ORA-27072: File I/O error

Linux-x86_64 Error: 9: Bad file descriptor

Additional information: 4

Additional information: 182657

Additional information: 700416

Recovery Manager complete.

关于ORA-03002与ORA-27072错误的描述，如下所示

[oracle@DB-Server-03 ~]$ oerr ora 19502

19502, 00000, "write error on file \"%s\", blockno %s (blocksize=%s)"

// *Cause: write error on output file

// *Action: check the file

 

[oracle@DB-Server-03 ~]$ oerr ora 27072

27072, 00000, "File I/O error"

// *Cause: read/write/readv/writev system call returned error, additional

// information indicates starting block number of I/O

// *Action: check errno

RMAN备份出现这个错误是在生成备份集时，文件I/O发生错误，因为/u04分区空间不足导致RMAN备份无法写入数据，我们也收到了磁盘分区告警的邮件。如下所示。