corrupt block in ASM disk

From: lsllcm <>
Date: Thu, 28 Apr 2011 01:10:05 -0700 (PDT)
Message-ID: <>

Hi All,

I meet one corrupt block issue in ASM disk. Below is replicate steps:

  1. create tablespace create tablespace aa_data datafile '+DATA/dbs11g/aa_data01.dbf' size 20M EXTENT MANAGEMENT LOCAL AUTOALLOCATE SEGMENT SPACE MANAGEMENT AUTO /
  2. It prompts the message: ORA-01119: error in creating database file '+DATA/dbs11g/ aa_data01.dbf' ORA-17502: ksfdcre:4 Failed to create file +DATA/dbs11g/aa_data01.dbf ORA-15130: diskgroup "DATA" is being dismounted ORA-15066: offlining disk "DATAVOL1" may result in a data loss
  3. check alert.log WARNING: IO Failed. group:1 disk(number.incarnation):0.0xe96892e8 disk_path:ORCL:DATAVOL1 AU:2 disk_offset(bytes):2097152 io_size:4096 operation:Read type:synchronous result:I/O error process_id:11679 WARNING: cache failed reading from group=DATA fn=1 blk=0 count=1 from disk= 0 DATAVOL1 kfkist=0x20 status=0x02 file=kfc.c line=10225 ERROR: cache failed to read group=DATA fn=1 blk=0 from disk(s): 0 DATAVOL1 ORA-15080: synchronous I/O operation to a disk failed System State dumped to trace file /u01/app/grid/diag/asm/+asm/+ASM/ trace/+ASM_ora_11679.trc
  4. check amdu log /u01/app/grid/diag/asm/+asm/+ASM/trace/ amdu_2011_04_26_17_13_28 ---------------------------- SCANNING DISK N0002
    Disk N0002: 'ORCL:DATAVOL1' AMDU-00407: asmlib error!! function = [asm_close], error = [0], mesg =
    [I/O Error]
    AMDU-00200: Unable to read [262144] bytes from Disk N0002 at offset
    AMDU-00201: Disk N0002: 'ORCL:DATAVOL1' Allocated AU's: 3 Free AU's: 0 AU's read for dump: 2 Block images saved: 512 Map lines written: 2 Heartbeats seen: 0 Corrupt metadata blocks: 0 Corrupt AT blocks: 0
  5. check dmesg dmesg|more

Info fld=0x1fa81d1, Current sda: sense key Medium Error Additional sense: Data synchronization mark error end_request: I/O error, dev sda, sector 33194449 scsi6: ERROR on channel 0, id 0, lun 0, CDB: Read (10) 00 01 fa 81 d1 00 02 00 0

6. I use amdu dump the asm disk
amdu -dump 'DATA'

    Disk N0002: 'ORCL:DATAVOL1' AMDU-00209: Corrupt block found: Disk N0002 AU [84926] block [0] type
    AMDU-00201: Disk N0002: 'ORCL:DATAVOL1' AMDU-00204: Disk N0002 is in currently mounted diskgroup DATA AMDU-00201: Disk N0002: 'ORCL:DATAVOL1' ** HEARTBEAT DETECTED ** Allocated AU's: 84927 Free AU's: 12733 AU's read for dump: 82 Block images saved: 3774 Map lines written: 82 Heartbeats seen: 1 Corrupt metadata blocks: 1 Corrupt AT blocks: 0

I tried to use remap, but the issue still exists

remap DATA DATAVOL1 173928448-173928448

Can anyone help?

Thanks Received on Thu Apr 28 2011 - 03:10:05 CDT

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