ORA-27626: 엑사데이터 에러 : 2201 (Slow/Hung disk로 인해 IO가 취소됨)
(Doc ID 2106896.1)
Last updated on JANUARY 11, 2021
적용 대상:
Oracle Exadata Storage Server Software - 버전 11.2.3.3.1 과(와) 그 후속이 문서의 내용은 모든 플랫폼에 적용됩니다.
WARNING 12.1.1.1.1 에서도 핵심 구절 “Exadata error:'IO cancelled due to slow/hung disk'” 을 포함한다.
증상
RDBMS alert log는 다음과 같은 형태의 많은 I/O 에러들을 보여 준다:
Errors in file /$PATH/app/oracle/diag/rdbms/dbfsd/DBFSD1/trace/DBFSD1_ora_29673.trc:
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 9038766080 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
WARNING: Read Failed. group:2 disk:0 AU:2152 offset:12623872 size:131072
path:o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3
incarnation:0xe96bdabc asynchronous result:'I/O error'
subsys:OSS krq:0x7f667ae88390 bufp:0x6a900000 osderr1:0x899 osderr2:0x0
WARNING: failed to read mirror side 1 of virtual extent 24506 logical extent 0 of file 268 in group [2.3879414525] from disk DBFS_DG_CD_00_EXA1CELADM3 allocation unit 2152 reason timed-out; if possible, will try another mirror side
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 9038766080 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
WARNING: Read Failed. group:2 disk:0 AU:2152 offset:12623872 size:131072
path:o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3
incarnation:0xe96bdabc asynchronous result:'I/O error'
subsys:OSS krq:0x7f667ae88390 bufp:0x6a900000 osderr1:0x899 osderr2:0x0
WARNING: failed to read mirror side 1 of virtual extent 24506 logical extent 0 of file 268 in group [2.3879414525] from disk DBFS_DG_CD_00_EXA1CELADM3 allocation unit 2152 reason timed-out; if possible, will try another mirror side
관련된 RDBMS 트레이스 파일은 ORA-27603 과 ORA-27626 에러들로 체워진다:
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 7625695232 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 7626088448 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 7625433088 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 7625957376 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 7626088448 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 7625433088 for data length 131072
ORA-27626: Exadata error: 2201 (IO cancelled due to slow/hung disk)
ORA-27603: Cell storage I/O error, I/O failed on disk o/192.168.xx.7;192.168.xx.8/DBFS_DG_CD_00_exa1celadm3 at offset 7625957376 for data length 131072
변경 내역
최근에 엑사데이터 스토리지 버전 11.2.3.3.1로 업그레이드됨.
원인
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