Source:  Database 19.30

Platform: Oracle Linux 9

Storage: ASM configured with ASMLIB V3

Disk Groups available: (DATA and DATA2)

Failed Action: Create Database using DBCA

Observations

[oracle@oracle-em trace]$ tail -100f alert_xxxx.log
Restore from backup piece /u01/app/oracle/product/19.0.0/dbhome1/assistants/dbca/templates/19_22_0_0_0_Database_Template_with_cdbpdb_for_EM24_1_0_0_0.dfb2
Restore from backup piece /u01/app/oracle/product/19.0.0/dbhome1/assistants/dbca/templates/19_22_0_0_0_Database_Template_with_cdbpdb_for_EM24_1_0_0_0.dfb3
2026-03-15T02:01:24.801546+00:00
Restore from backup piece /u01/app/oracle/product/19.0.0/dbhome1/assistants/dbca/templates/19_22_0_0_0_Database_Template_with_cdbpdb_for_EM24_1_0_0_0.dfb1
2026-03-15T02:01:24.892879+00:00
NOTE: ASMB mounting group 1 (DATA)
SUCCESS: mounted group 1 (DATA)
NOTE: grp 1 disk 0: DISK1 path:ORCL:DISK1
2026-03-15T02:01:25.007212+00:00
XXXX(3):WARNING: Write Failed. group:1 disk:0 AU:26 offset:8192 size:1040384
XXXX(3):path:ORCL:DISK1
XXXX(3):   incarnation:0x30 asynchronous result:’I/O error’ ioreason:8979 why:35
XXXX(3):   subsys:/opt/oracle/extapi/64/asm/orcl/1/libasm.so krq:0x7f9b6e09c9e0 bufp:0x7f9b6640f000 osderr1:0xffffffff osderr2:0x2c

The trace file indicated

ORA-15080: synchronous I/O operation failed to write block 128 of disk 0 in disk group DATA
<error barrier> at 0x7ffd96bbdf60 placed kfio.c@7136
DDE rules only execution for: ORA 15080
—– START Event Driven Actions Dump —-
—- END Event Driven Actions Dump —-
—– START DDE Actions Dump —–
Executing SYNC actions
Executing ASYNC actions
—– END DDE Actions Dump (total 0 csec) —–
ORA-15080: synchronous I/O operation failed to write block 1 of disk 0 in disk group DATA
<error barrier> at 0x7ffd96bbdf60 placed kfio.c@7136
ORA-15081: failed to submit an I/O operation to a disk
ORA-15081: failed to submit an I/O operation to a disk

I was attempting to create my Repository Database for Oracle Enterprise Manager 24AI with Oracle Provided template. However, dbca continued to fail with ORA-15081 / ORA-15080. However, when exploring via ASMCMD, the DB directories were found though the file creation was failing.

Explored below KB Articles but did not match the scenario of mine

ORA-15081: failed to submit an I/O operation to a disk due to Multipath Bug KB146454
ASM device error ORA-27041 ORA-15025 ORA-15081 KB90404

Checked workarounds

• Configured a new storage (Block storage) and mounted a new Disk Group (DATA2) and attempted the operation. Error was still the same.
• Tried to create a sample Database on the new Disk Group and received below errors

ORA-15080: synchronous I/O operation failed to write block 1 of disk 0 in disk group DATA2

WARNING: failed to write mirror side 1 of virtual extent 0 logical extent 0 of file 256 in group 2 on disk 0 allocation unit 24

WARNING: group 2 file 256 block 1 write failed, OSD error 4294967295.

2026-04-03T11:51:11.702617+00:00

Errors in file /u01/app/oracle/diag/rdbms/emrepo/emrepo/trace/emrepo_ora_1884612.trc:

ORA-15081: failed to submit an I/O operation to a disk

ORA-15081: failed to submit an I/O operation to a disk

Fix

It was observed that the ASM Database Compatibility was set to 10.0.0.0. This was changed to 19.0.0.0.0 as shown below on DATA Disk Group. (Note DATA2 Disk Group was dropped earlier to reduce cost on OCI)

I attempted DBCA again and was successful.