Oracle reports corrupted data blocks

Solution Unverified - Updated -

Issue

  • Oracle error logs report corruption:
Wed Jan 21 17:05:01 2015
Hex dump of (file 20, block 1871182) in trace file /path/file.trc
Corrupt block relative dba: 0x051c8d4e (file 20, block 1871182)
Completely zero block found during buffer read
Reading datafile '/mountpoint/db_file.dbf' for corruption at rdba: 0x051c8d4e (file 20, block 1871182)
Reread (file 20, block 1871182) found same corrupt data (no logical check)
Wed Jan 21 17:05:01 2015
Corrupt Block Found
         TSN = 4, TSNAME = POOL_DATA
         RFN = 20, BLK = 1871182, RDBA = 85757262
         OBJN = 325000, OBJD = 325000, OBJECT = WI_EXPIRED, SUBOBJECT =
         SEGMENT OWNER = SOAASYNC_SOAINFRA, SEGMENT TYPE = Index Segment

Environment

  • Red Hat Enterprise Linux 5.7
  • Oracle
  • LVM

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