ORA-27072 Errors When Adding, Dropping ASM Disks or Running Rebalance Operation. Also OS logs show FCPIO_SGL_INVALID
(Doc ID 1496269.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Server - Enterprise Edition - Version 126.96.36.199 and later
Information in this document applies to any platform.
2 node RAC - 11203 - Linux x86-64 (SLES11) - ASMLIB - Storage: Cisco server using FCoE technolog - multipath (emcpower)
Receiving read errors on all ASM luns when dropping / adding or rebalancing luns within a diskgroup
ASM alert log shows:
Thu Sep 20 15:37:04 2012 --> SQL> alter diskgroup DATA01 drop disk'DATA01_0000'
Thu Sep 20 15:37:09 2012 --> SUCCESS: alter diskgroup DATA01 drop disk'DATA01_0000'
Thu Sep 20 15:37:09 2012 --> ARB0 started with pid=36, OS id=68835
ORA-27072: File I/O error
Linux-x86_64 Error: 5: Input/output error
Additional information: 4
Additional information: 4096
Additional information: -1
WARNING: Read Failed. group:2 disk:0 AU:2 offset:0 size:1048576
NOTE: group 2, file 1, extent 0: successful reread of 256 block(s)
NOTE: F1X0 copy 1 relocating from 0:2 to 1:62340 for diskgroup 2 (DATA01)
... <errors continue for different AUs:>
Additional information: 6144
WARNING: Read Failed. group:2 disk:0 AU:3 offset:0 size:1048576
Additional information: -1
Additional information: 1048576
WARNING: Write Failed. group:2 disk:1 AU:62390 offset:0 size:1048576
ERROR: failed to copy file +DATA01.256, extent 1
ERROR: ORA-15080 thrown in ARB0 for group number 2
Errors in file /oracle/admin/diag/asm/+asm/+ASM1/trace/+ASM1_arb0_68835.trc:
ORA-15080: synchronous I/O operation to a disk failed
NOTE: stopping process ARB0
NOTE: starting rebalance of group 2/0x7217e974 (DATA01) at power 1
Starting background process ARB0
Thu Sep 20 15:42:06 2012 --> Received dirty detach msg from inst 2 for dom 5
Thu Sep 20 15:42:06 2012 --> List of instances: 1 2
Thu Sep 20 15:52:42 2012 --> SQL> alter diskgroup DATA01 add disk '/dev/oracleasm/disks/ASM_DATA_01'
Thu Sep 20 15:52:55 2012 --> SUCCESS: alter diskgroup DATA01 add disk '/dev/oracleasm/disks/ASM_DATA_01'
Thu Sep 20 15:52:55 2012 --> ARB0 started with pid=36, OS id=73279
Thu Sep 20 15:57:03 2012 --> Received dirty detach msg from inst 2 for dom 3
Thu Sep 20 15:57:03 2012 --> List of instances: 1 2
The following entries also appear at those time in the OS system logs (/var/log/messages*)
Sep 20 15:37:09 msp0lracd018 kernel: [17018.656624] scsi host2: hdr status = FCPIO_SGL_INVALID
Sep 20 15:37:09 msp0lracd018 kernel: [17018.657390] scsi host4: hdr status = FCPIO_SGL_INVALID
Sep 20 15:37:11 msp0lracd018 [17020.621145] scsi host2: hdr status = FCPIO_SGL_INVALID
From the ASM alert log entries, ARB is re-reads the information successfully (i.e., 'successful reread of 256 block(s))
When there is a write error the process is stopped, but the ASM disk group is not dismounted.
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