I don't know about using dd, but export/import would work if you have the space. IF these are 10g databases, you can use the database_link option and copy the schemas directly using datapump (a real nice solution)... -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of VIVEK_SHARMA Sent: Wednesday, April 18, 2007 2:10 AM To: oracle-l@xxxxxxxxxxxxx Subject: Conversion of a 3 TB NON-RAC Database To "ASM" - RAC in 10gR2 ? Folks What could be the approach to Convert a Large 3 TB NON-RAC Production Database with Datafiles existing on cooked/Mounted Filesystem (UFS) to a 3 instance RAC using "ASM"? NOTE - Production Database is Near 24*7 with Minimal Downtime. Can the Datafiles be copied using "dd" Command from the Mounted FS to the RAW Device Space of ASM? Need the basic approach Steps for conversion. Any Docs, pointers, Links will help. (Did search Oracle Documentation, but could NOT find a practical Hands-On Note) Config:- --------- Solaris 10 Oracle 10gR2 3 instance RAC Thanks indeed **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS*** ------------------------------------------------------------------------------ NOTICE: This electronic mail message and any attached files are confidential. The information is exclusively for the use of the individual or entity intended as the recipient. If you are not the intended recipient, any use, copying, printing, reviewing, retention, disclosure, distribution or forwarding of the message or any attached file is not authorized and is strictly prohibited. If you have received this electronic mail message in error, please advise the sender by reply electronic mail immediately and permanently delete the original transmission, any attachments and any copies of this message from your computer system. Thank you. ==============================================================================