raw device

[marc0146]

Hi everyone,

I would like to know how we can configure exctly raw device functionality with NetWorker 7.x under
Linux Red Hat

Is it a mandatory to use NetWorker with database like Oracle with raw device or can we back up and recover another thing (no database) on a raw partition with NetWorker ?

Thanks,
Marc

 

[605]

RAW backups are possible by default - no extra software is necessary.

For Unix/Linux, just use the internal rawasm, for example here on Solaris:

1. Create a local directive
# more /dev/rdsk/.nsr
rawasm: c0t0d0s0
#

2. Start the save:
# save /dev/rdsk/c0t0d0s0

That's already it.

 

[marc0146]

Thanks 605,

So if I understand, we can create directive on server or client in order to use raw partition as the standard directives.

But what is the difference between :

# more /dev/rdsk/.nsr
rawasm: c0t0d0s0
#

2. Start the save:
# save /dev/rdsk/c0t0d0s0


and the same save :

# save /dev/rdsk/c0t0d0s0
but without the local directive .nsr ??


On a red hat server NetWorker 7.x , if I save the whole directory /dev, I can see all the files like block file and character files; so what is exactly the purpose of rawasm ??

Best regards,
Marc

 

[605]

Try out - it should not work.

save uses an internal asm called uasm (good for a file device, bad for raw partitions). So in fact with save you would use the wrong mechanism.

 

[marc0146]

Thanks.

Best regards,

Marc