how to backup machine keys of the server

[badri]

 We are taking All Local drives backup for most of the server.

At times we are asked to restore the machine keys. but we don't find any folder with name Machinekeys under  C:\Documents and Settings\All Users\Application Data\Microsoft\Crypto\RSA\

I suppose since the machine keys are in encrypted form so they are not backed up. Is there any ways we can backup machine keys also. with normal file system backup

[Nicolai]

What account does the Netbackup service run as ?. If it's not the "Local System Account" Netbackup may not have sufficient permissions.

T/N from Microsoft:
Default permissions for the MachineKeys folders

[badri]

 you are talking about the client or the master server.
Master server is Unix box . it is a datacenter  enviroment 

[Nicolai]

It's the service account Netbackup run under on the client.

[rjrumfelt]

and look for the NetBackup client service, what does it say for the "Log On As" column?

[badri]

 the client account is accessible through local system account