the following link has some examples on how to do this: https://twiki.cern.ch/twiki/bin/view/PDBService/ASM_Internals Rui Amaral Database Administrator ITS - SSG TD Bank Financial Group 220 Bay St., 11th Floor Toronto, ON, CA, M5K1A2 (bb) (647) 204-9106 ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of dd yakkali Sent: Thursday, April 21, 2011 1:34 PM To: oracle-l@xxxxxxxxxxxxx Subject: On which asm disk is the corrupted block? Oralce 11.1.0.7 ASM & DB RAC on RHEL5 We see corruption on a table and have the file id and block id. I am trying to find out which asm disk that block is on. We see 1 corrupted block in bunch of few of the tablespaces. I need to give the information to the hardware guys regarding which physical disk this block is on. I am wondering is there any way to pull that information. Any help is greatly appreciated. thanks Deen age 2088137 is marked corrupt Corrupt block relative dba: 0x001fdcc9 (file 1024, block 2088137) Bad header found during dbv: Data in bad block: type: 11 format: 2 rdba: 0x00000001 last change scn: 0x0000.00000000 seq: 0x1 flg: 0x04 spare1: 0x0 spare2: 0x0 spare3: 0x0 consistency value in tail: 0x00000b01 check value in block header: 0x7499 computed block checksum: 0x0 NOTICE: Confidential message which may be privileged. Unauthorized use/disclosure prohibited. If received in error, please go to www.td.com/legal for instructions. AVIS : Message confidentiel dont le contenu peut être privilégié. Utilisation/divulgation interdites sans permission. Si reçu par erreur, prière d'aller au www.td.com/francais/avis_juridique pour des instructions.