Yes, that's correct, if you install ASM on a single node, the installer will detect that no clusterware is running, and it will install ocssd.bin to run from /etc/inittab. The ocssd.bin binary is in the ASM ORACLE_HOME, so, there won't be a clusterware home installed at all. If you install ASM on a cluster, ASM will detect the clusterware (since you're required to install it before ASM), and so won't enable ocssd.bin setup in the ASM ORACLE_HOME. Hope that's clear, -Mark ________________________________________ From: Tony Adolph [tony.adolph.dba@xxxxxxxxx] Sent: Tuesday, May 19, 2009 1:17 To: Bobak, Mark Cc: Thomas Roach; Oracle Discussion List Subject: Re: Remover CRS Hi Mark, Thanks for the help. localconfig add did the trick, see below (for info). So does that mean that before I installed CRS when I had a database running with ASM, I had this sliver of CRS running under the covers? What I've done so far is: -1- Build simple DB -2- create an ASM instance -3- migrate the simple DB to ASM -4- install CRS and screw things up Things went wrong so I decided to remove CRS (services, but not the CRS home) and restart from there. So at step 2 or 3 above, I had some sort of cut down version of CRS running? Regards Tony rac1:/u01/app/oracle/oracle/product/10.2.0/db_1/dbs # localconfig add Successfully accumulated necessary OCR keys. Creating OCR keys for user 'root', privgrp 'root'.. Operation successful. Configuration for local CSS has been initialized Adding to inittab Startup will be queued to init within 90 seconds. Checking the status of new Oracle init process... Expecting the CRS daemons to be up within 600 seconds. CSS is active on these nodes. rac1 CSS is active on all nodes. Oracle CSS service is installed and running under init(1M) rac1:/u01/app/oracle/oracle/product/10.2.0/db_1/dbs # sqlplus / as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on Tue May 19 17:07:29 2009 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to an idle instance. 17:07:29 idle> startup ASM instance started Total System Global Area 92274688 bytes Fixed Size 1217884 bytes Variable Size 65890980 bytes ASM Cache 25165824 bytes ASM diskgroups mounted -- //www.freelists.org/webpage/oracle-l