Oracle 19c ASM Storage: Block Corruption
Oracle 19c ASM Storage: Block Corruption Special errors, step-by-step diagnosis and fix, with live examples Environment used in all examples: Oracle 19c EE, database PRODDB, ASM instance +ASM1, diskgroups +DATA and +FRA, host dbprod01, OS Oracle Linux with multipath. Sample outputs are illustrative of what each error looks like; replace file numbers, block numbers and disk names with your own values. Rule for every case: identify the layer first (database, ASM, OS/storage), then fix at that layer. Never repair at the database layer if the storage layer is still failing. 1. Quick triage table Error Layer Meaning / go to ORA-01578 + ORA-01110 Database Physical block corruption in a datafile. Case A ORA-15130 / ORA-15075 / ORA-27072 in ASM log; disk OFFLINE ASM / storage Disk dropped or offlined after I/O error. Case B ORA-15032 + ORA-15040 +...