can you post your OR commands ?

yep

1-Oracle online

create and activate

2-shoutdown oracle and umount

recrerate , activate then termintae

should i shutdown oracle in first activate or only for incremental or copy

should i put oracle in hot backup mode , although i dont think it will make a difference as  i use -consistent

symrcopy -f elian.txt create -copy -hot -push -differential

symrcopy -f elian.txt activate -consistent

symrcopy -f elian.txt query

symrcopy –file elian.txt set pace 2 

symrcopy list ceiling -dir all -sid 2221   #  all are none so pace value will be effective

symrcopy -f elian.txt query -details

symrcopy -f elian.txt verify

once copy reach 100% ,

Stop the application/DB/Cluster  , GPFS AIX CLUSTER with oracle rac and umount all san disks

symrcopy -file elian.txt recreate

# symrcopy -file elian.txt activate -consistent

then i make sure invalide tracks=0 and reach 100%

symrcopy -f dev_file_OR query -details

symrcopy -f dev_file_OR verify

# symrcopy -file dev_file_OR terminate

thats it

then bingbong error on oracle control file

ya it should , its really strange to have control files not sync with data file

i

this should work , the only thing that i do differently:

I let it seat in this precopy mode until the migration

symrcopy -f create -push -hot -differential -name oraclemigration1 -precopy -pace 5

shutdown oracle host

symrcopy -f activate -consistent

but you already shutdown the database before you do the activate right ?

i assume you shutdoown the  host, activate OR, remove old devices, present new devices ?

Mosa3lyan wrote should i shutdown oracle in first activate or only for incremental or copy

should only need to shut it down for final cut-over.

i didnt shutdown the hosts

what i did is

unmasked the old devices then activate or , termintae or , then present new devices

do you prefer to use pace or ceiling if you have multi session ,( i like pace)

thanks Dynamox

the issue i face with pace , i was unable to change it while some device copied and other device CopyInProg   ,   ??? so how can change pace in that case

i don't even mess with ceiling, i leave it at default ..pace i set when i create the session.