RMAN backup and get bad block error messages?
Date: Thu, 30 Jul 2009 05:10:38 -0700 (PDT)
we have ORACLE 11G on LINUX server. We just created a new EBS system and perform the database backup. When I do "cold backup" and "hot backup", there is NO error. While I perform RMAN backup and I got error messages:
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 07/29/2009 20:38:42 ORA-19566: exceeded limit of 0 corrupt blocks for file /u/EBS/EBSDB01/db/apps_st/data/system04.dbf
Alter.log also have messages:
Hex dump of (file 352, block 165656) in trace file /u/EBS/EBSDB01/db/tech_st/11.1.0/admin/XXX/diag/rdbms/ebsdb01/EBSDB01/trace/EBSDB01_ora_6824.trc Corrupt block relative dba: 0x58028718 (file 352, block 165656) Completely zero block found during backing up datafile Reread of blocknum=165656, file=/u/EBS/EBSDB01/db/apps_st/data/system04.dbf. found same corrupt data
My question are:
- Why "cold backup" and "hot backup" Not complain, but RMAN complain?
- how to fix this bad block without lost data?
Thanks.Received on Thu Jul 30 2009 - 07:10:38 CDT