Yes. Doing a dd on the OCR destroys the CRS installation. However most of the times, we just re-install the CRS than debugging what went wrong as re-install is faster than looing the pile of trace files. So just wipe out the CRS install, DD the OCR,voting and ASM disks, include the verify the ASMLIB and see the disks are seen in both the location (as per my earlier mail), include the modified ASM_DISKSTRING parameter in the ASM init.ora file and you are good to go. -Gopal Best Regards, K Gopalakrishnan, http://www.oracle.com/technology/community/oracle_ace/ace1.html#gopalakrishnan Author: Oracle Database 10g RAC Handbook, Oracle Press 2006 http://www.amazon.com/gp/product/007146509X/ Co-Author: Oracle Wait Interface: Oracle Press 2004. http://www.amazon.com/gp/product/007222729X/ ----- Original Message ---- From: William Wagman <wjwagman@xxxxxxxxxxx> To: mgogala@xxxxxxxxxxx Cc: oracle-l@xxxxxxxxxxxxx Sent: Thursday, 5 April, 2007 8:23:41 AM Subject: RE: Further adventures in the world of RAC - Part 1 But if I do that won't it destroy my CRS installation? Bill Wagman Univ. of California at Davis IET Campus Data Center wjwagman@xxxxxxxxxxx (530) 754-6208 -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Mladen Gogala Sent: Wednesday, April 04, 2007 5:48 PM To: William Wagman Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: Further adventures in the world of RAC - Part 1 On 04/04/2007 06:59:10 PM, William Wagman wrote: > Am I hosed or can I remove this occurrence of asm? Any help greatly > appreciated. > > Thanks. You have to re-initialize cluster registry device by doing dd if=/dev/zero of=<cluster registry> bs=1024k count=64 -- Mladen Gogala http://www.mladen-gogala.com -- http://www.freelists.org/webpage/oracle-l -- http://www.freelists.org/webpage/oracle-l -- http://www.freelists.org/webpage/oracle-l