Hi,
We currently use rsync to create an Oracle standby on a target box from an
existing standby by copying all the datafiles while the source standby is in
recovery status. We are occasionally running into datafile corruptions being
reported by oracle when it is recovering the new standby. Oracle support says
they don't recommend copying files while the changes being applied to them
unless the database is put in backup mode (which is not possible for us).
We are using "rsync -av --password-file=pass.secret source_data_file_name
ora...@target::ORCL/"
We are planning to use "rsync -av --password-file=pass.secret --block-size=8192
source_data_file_name ora...@target::ORCL/"
This is because, we are using 8k block size for Oracle and hence the blocks
will be copied in full by rsync to avoid fractured block copies. Am I correct
in this assumption by using "--block-size" option?
Also, is there are option is rsync to keep checking the checksum's at block
level, i.e., copy block 1 from host A to host B, calculate checksum at host B
and verify that the checksum of same block at host A is also same?
Appreciate any help on this.
Thanks,
Sai.
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