Can sys admins backup Raw devices?

Platform: Solaris 5.10
DB versions : 11g
Since raw devices are not OS formatted can sys admins backup raw devices ? If they can't , then, that means we have to rely entirely on RMAN backups for our RAC DBs. Right?

resistanceIsFruitful wrote:
Platform: Solaris 5.10
DB versions : 11g
Since raw devices are not OS formatted can sys admins backup raw devices ? Yes. They can use the dd (disk dump) command to backup - where if (input file) is the raw device and of (output file) is a tape drive or backup device.
If they can't , then, that means we have to rely entirely on RMAN backups for our RAC DBs. Right?That should be the preference. As backup of a raw device using dd does not guarantee a database or cluster that can be restored - as other processes are/can be writing data to it, while dd is reading from it to backup. It does not have the same management and control features, and flexibility, of rman.
Not using rman would be a mistake IMO.

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