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ASM disk offline with lots of Buffer I/O Errors and multipath failing (Doc ID 2619602.1)

Last updated on JANUARY 24, 2020

Applies to:

Oracle Database Appliance Software - Version 2.7.0.0 and later
Information in this document applies to any platform.

Symptoms

On : Oracle Linux 7.2 version, Linux Kernel

ERROR

----------------------------


extract from messages

Aug 8 23:17:20 oda1-base multipathd: SSD_E0_S04_2348920756: sdn - tur checker reports path is down
Aug 8 23:17:20 oda1-base kernel: [51154.768162] blk_update_request: I/O error, dev dm-4, sector 216764416
Aug 8 23:17:22 oda1-base multipathd: SSD_E0_S04_2348920756: sde - tur checker reports path is down <<<< multhipath down>>>>
Aug 8 23:17:22 oda1-base kernel: [51156.429558] blk_update_request: I/O error, dev dm-4, sector 4096
Aug 8 23:17:22 oda1-base kernel: [51156.430120] blk_update_request: I/O error, dev dm-4, sector 1050685248
Aug 8 23:17:23 oda1-base kernel: [51157.096747] blk_update_request: I/O error, dev dm-4, sector 1185604720
Aug 8 23:17:23 oda1-base kernel: [51157.850935] blk_update_request: I/O error, dev dm-4, sector 4096
Aug 8 23:17:23 oda1-base kernel: [51157.851563] blk_update_request: I/O error, dev dm-4, sector 1984485024
Aug 8 23:17:23 oda1-base kernel: [51157.855493] blk_update_request: I/O error, dev dm-4, sector 1984485024
Aug 8 23:17:24 oda1-base kernel: [51158.535263] blk_update_request: I/O error, dev dm-4, sector 1008587920
Aug 8 23:17:24 oda1-base kernel: [51158.886091] blk_update_request: I/O error, dev dm-4, sector 1190418464
Aug 8 23:17:25 oda1-base kernel: [51158.979452] blk_update_request: I/O error, dev dm-4, sector 1359274800

....


extract from ASM log


WARNING: Offline of disk 4 (SSD_E0_S04_2348920756P1) in group 1 and mode 0x7f failed on ASM inst 2
NOTE: unable to offline disks after getting write error for diskgroup DATA
2019-08-09T02:08:51.487526-04:00
Errors in file /u01/app/grid/diag/asm/+asm/+ASM2/trace/+ASM2_lgwr_11533.trc:
ORA-15066: offlining disk "SSD_E0_S04_2348920756P1" in group "DATA" may result in a data loss
ORA-15066: offlining disk "SSD_E0_S04_2348920756P1" in group "DATA" may result in a data loss
ORA-15080: synchronous I/O operation failed to write block 0 of disk 4 in disk group DATA <<<<< >>
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 5: Input/output error <<< system error>>>
Additional information: 4294967295





Cause

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In this Document
Symptoms
Cause
Solution
References


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