【故障描述】

Oracle数据库和GI软件目前最新的 RU 版本为 19.10，更新了这个RU后，可能会导致 ASM I/O error。

==From alert log of ASM instance==

WARNING: Write Failed. group:1 disk:0 AU:1 offset:1044480 size:4096
path:AFD:***_ASM_0000
incarnation:0xf0fa7e97 asynchronous result:'I/O error'
subsys:/opt/oracle/****/64/asm/orcl/1/libafd19.so krq:*** bufp:*** osderr1:0xfffffffb osderr2:0x2e
IO elapsed time: 0 usec Time waited on I/O: 0 usec
WARNING: Hbeat write to PST disk 0.4042948247 in group 1 failed. [2]

【故障解决】

应用Patch 32437246: HIGH PERFORMANCE ISSUE AFTER APPLYING 19.10 ACFSRU

或者等待RU 19.11

【参考文档】

ASM I/O Error Occurred After Applied GI Release Update 19.10 (Doc ID 2762476.1)