因等保要求，从linux 7.x升级到redhat8.8上安装19c，在节点一执行root.sh时报错如下
第1次部署告警如下
2023/10/23 15:13:08 CLSRSC-594: Executing installation step 19 of 19: 'PostConfig'.
[FATAL] [DBT-30006] Exception while Processing Request.
CAUSE: ORA-15018: diskgroup cannot be created
ORA-15080: synchronous I/O operation failed to write block 0 of disk 0 in disk group MGMT
ORA-27061: waiting for async I/Os failed
2023/10/23 15:14:19 CLSRSC-612: failed to create backup disk group 'MGMT'
Died at /u01/app/19.0.0/grid_1/crs/install/crsinstall.pm line 1245.
dd磁盘做读写都正常，清理环境后，怀疑可能是个bug，第2次执行时同时打补丁，第2次告警如下
2023/10/25 21:30:21 CLSRSC-594: Executing installation step 19 of 19: 'PostConfig'.
[FATAL] [DBT-30006] Exception while Processing Request.
CAUSE: ORA-15018: diskgroup cannot be created
2023/10/25 21:30:32 CLSRSC-612: failed to create backup disk group 'MGMT'
Died at /u01/app/19.0.0/grid_1/crs/install/crsinstall.pm line 1245.
手动创建磁盘组测试
SQL> create diskgroup DATA EXTERNAL redundancy
disk '/dev/mapper/asm-data1' name DATA_000
disk '/dev/mapper/asm-data2' name DATA_001
ATTRIBUTE 'au_size'='4M',
'compatible.asm'='19.0.0.0.0',
'compatible.rdbms'='10.1';
2 3 4 5 6 create diskgroup DATADG EXTERNAL redundancy
*
ERROR at line 1:
ORA-15018: diskgroup cannot be created
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-15080: synchronous I/O operation failed to write block 48 of disk 1 in disk group DATA
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-15080: synchronous I/O operation failed to write block 32 of disk 0 in disk group DATA
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error
Additional information: 4294967295
Additional information: 65536
ORA-15080: synchronous I/O operation failed to write block 0 of disk 1 in disk group
换了补丁又测试了第3次，报错如下
Located 5 voting disk(s).
KFOD-00336: failed to enable Oracle Flex ASM
ORA-15327: remote ASM is not enabled
ORA-06512: at line 4
ORA-06512: at "SYS.X$DBMS_DISKGROUP", line 719
ORA-06512: at line 2
2023/10/26 11:34:16 CLSRSC-365: Failed to create credentials for ASM on the local node
Died at /u01/app/19.0.0/grid_1/crs/install/crsinstall.pm line 2013.
到这里冷静想想了，硬件和redhat8.8匹配的，感觉可能是存储端的问题，请第3方工程师新配置了200G磁盘，创建磁盘组成功，到这里基本判断是分配的mgmt磁盘和数据磁盘故障导致的。新提供了磁盘后部署正常，追问原因得到的回复有点搞笑：存储池空间用光之后，删除后再次新建没有初始化成功，重启后应该是能恢复的
第3方工程师年轻，新建再删除多次，导致存储池空间不足