Oracle Error 27072
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Ora-27072 File I/o Error Additional Information 2
RMAN abort with ORA-19502 and ORA-27072 Oracle ora-19502 ora-27072 file i/o error Database Tips by Burleson Consulting March 16, 2015 Question: I lam trying to run an RMAN backup and I am getting the ORA-19502 and ORA-27072 error: ORA-19502: ora-27072: file i/o error linux-x86_64 error: 5: input/output error write error on file "/orabackup/rman/snlprod/control_files/c-225853591-20150315-01", block number 320 (block size=16384)ORA-27072: File I/O error Is this really a file I/O error or is it just not enough disk spac for the backup? How to I get my RMAN backup to complete? Answer: This sounds like a file-full or a disk I/O failure to me, Your first
Ora-19502 Write Error On File Blockno (blocksize=8192)
step is to see if you have a "real" disk I/O error, and not a phantom I/O error (as when the disk file is full), and the OS logs will provide this information. SQL> select * from V$DATABASE_BLOCK_CORRUPTION; This error is related to the RMAN disk I/O failure. The backupis attempting to write to a larger disk space than is available. It can also happen when a 2 gigabyte file size has been reached. Make sure oracle software owner (oracle user, by default) at OS level has full permissions on the file system under the new mount point. If everything is OK, configure the disk channel explicitly and see if it works.The reason for this error is that there is not enough disk space on the drive to complete the backup piece. To resolve this error, either clean up unnecessary files on the disk, or add disk space to the disk then re-run the RMAN backup. References: from Oracle technical support:
No Comments Tweet We got the following error when backing up an 11.2.0.3 database ora-27072 skgfdisp i/o error to an external disk. RMAN> run 2> { 3> allocate channel linux-x86_64 error: 25: inappropriate ioctl for device d1_disk_backup device type disk ; 4> crosscheck backup; 5> backup incremental level 1 cumulative as COMPRESSED
Rman Ora-27072: File I/o Error
BACKUPSET copies=1 tag 'DAILY_BCK' database format '/external_usb/mesutt_daily_%U.bkp'; 6> backup tag '%ARCTAG' archivelog all not backed up since time 'SYSDATE-5' format '/external_usb/mesutt_arc_%U.bkp'; 7> backup current controlfile tag http://www.dba-oracle.com/t_rman_ora_27072_ora_19502_i_o_error.htm 'CTL' format '/external_usb/mesutt_cntl_%U.bkp'; 8> backup spfile tag 'SPF' format '/external_usb/mesutt_spfile_%U.bkp'; 9> release channel d1_disk_backup; 10> } allocated channel: d1_disk_backup channel d1_disk_backup: SID=576 device type=DISK ... .... released channel: d1_disk_backup RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03009: failure of backup command on d1_disk_backup channel at 10/06/2014 03:55:55 ORA-19502: http://www.oracle-class.com/?p=3162 write error on file "/external_usb/mesutt_arc_pvpkbj7m_1_1.bkp", block number 16388096 (block size=512) ORA-27072: File I/O error Additional information: 4 Additional information: 16388096 Additional information: 339968 Let s check user permissions to this mount point, vmuttora1(mesutt):/home/oracle>df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 36G 27G 6.8G 80% / tmpfs 16G 276M 16G 2% /dev/shm /dev/sda1 485M 59M 402M 13% /boot /dev/mapper/vg01-jv01 32G 18G 13G 58% /jv01 /dev/mapper/vg02-rman 197G 17G 171G 9% /rman vmuttora1(mesutt):/home/oracle> The disk is not showing; /external_usb/ not mounted. Let s mount it and give oracle user permission to write on it. [root@vmuttora1 external_usb]# mount /dev/sde1 /external_usb/ [root@vmuttora1 external_usb]# chown oracle:dba /external_usb/ [root@vmuttora1 external_usb]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/VolGroup-lv_root 36G 27G 6.8G 80% / tmpfs 16G 276M 16G 2% /dev/shm /dev/sda1 485M 59M 402M 13% /boot /dev/mapper/vg01-jv01 32G 18G 13G 58% /jv01 /dev/mapper/vg02-rman 197G 17G 171G 9% /rman /dev/sde1 1.8T 74G 1.7T 5% /external_usb [root@vmuttora1 external_usb]# Re-run the backup sc
nothing to do with your database, its just a space http://random.kakaopor.hu/ora-19502-ora-27072-during-rman-restore-oracle/ issue with the OS..by the way I was taking backup on Linux RHEL4..Solution:use linux command df -k i/o error to see where at the OS level is space is been eaten up ..as in my case my /opt was 99% full... i just cleaned the unneccesary files , freed up space..by using the file i/o error command rm -rf (this command must never be used unless absolutely needed..double care should be taken while working on Prodcuction).. and then took the backup....this time backup worked absolutely fine....BTW the rman block I used for simple backup...run{allocate channel diskchan device type disk;configure controlfile autobackup on;configure channel device type disk format '/opt/%U';backup database;backup archivelog all;release channel diskchan;};where diskchan is the diskname..... Posted by Kartik at 11:51 AM No comments: Post a Comment Home Subscribe to: Post Comments (Atom) Followers Blog Archive ▼ 2010 (1) ▼ May (1) ORA-27072: File I/O error Additional information About Me Kartik View my complete profile
was trying to load database from an RMAN backup (duplicate database until …), and the restore process died after some time, and gave me the following error messages (I have tried it several times, with different backups, these repeated randomly): ORA-19502: write error on file "/path/to/datafile.dbf", blockno 1669073 (blocksize=8192)
ORA-27072: File I/O error
Linux Error: 2: No such file or directory
ORA-19502: write error on file "/path/to/datafile.dbf", blockno 1831475 (blocksize=8192)
ORA-27072: File I/O error
Linux Error: 13: Permission denied
Long story short, these messages are exotic forms of the boring "Out of disk space" message. And even if you have enough space for the restore, you may need ~+20% spare space. Don't know exactly why, but that was needed in my case. Oracle loves disk space and strange messages - lesson learned. 5853:0001 XEN device Bootsplash patch for Linux kernel 2.6.32 3 thoughts on “ORA-19502, ORA-27072 during RMAN restore (Oracle)” ohchely 2012-07-02 at 10:21 This worked out for me. Increased the space and rectified the error. Of course followed by some other errors which in-turn rectified Thank You