ORA-01115 ORA-01110 ORA-27091 ORA-27072 Error: 5: I/O error
(Doc ID 559697.1)
Last updated on SEPTEMBER 04, 2023
Applies to:
Oracle Database - Enterprise Edition - Version 9.2.0.8 and laterOracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
IBM AIX on POWER Systems (64-bit)
IBM AIX Based Systems (64-bit)
Symptoms
After patching the OS with Patch IBM Technology Level 6 (5300-06) or Level 7 (5300-07), the application log started reporting the following errors:
ORA-01115: IO error reading block from file <file id> (block # <block number>)
ORA-01110: data file <file id>: <file name>
ORA-27091: skgfqio: unable to queue I/O
ORA-27072: skgfdisp: I/O error
IBM AIX RISC System/6000 Error: 5: I/O error
- The errors are not reported in the alert log file.
- Running dbv against datafiles from the error messages shows no errors.
- All the mandatory OS patches are applied.
- Oracle patch for <Bug 5496862> - IO READING PROBLEMS AFTER INSTALLING IBM TECHNOLOGY LEVEL 5 (5300-05) was installed before patching the OS.
Changes
Patch IBM Technology Level 6 (5300-06) or higher was applied to the OS.
Cause
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In this Document
| Symptoms |
| Changes |
| Cause |
| Solution |
| References |