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device file and /dev use in unix

Created: 22 Sep 2012 • Updated: 14 Dec 2012 | 3 comments
This issue has been solved. See solution.

I know in unix everything is a file.

 

What does device file and /dev directory do when i configure tape drive.

And in windows what does port,bus,target,LUN does?

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Marianne's picture

Those are the hardware addresses that the OS uses for access to the tape drive.

If you need more info, you need to ask on OS forums...

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links

SOLUTION
Marianne's picture

You have OS-related questions, not NetBackup...

As an application, NetBackup has no direct access to a device, instead relying on the operating system (OS) to handle any communication with the device. This means that during a write operation NetBackup asks the OS to write to the device and report back the success or failure of that operation.

If you need to know more about hardware addresses at OS level, you can read through these (and other links found via Google):

http://tldp.org/HOWTO/SCSI-2.4-HOWTO/scsiaddr.html

http://www.t10.org/ftp/x3t9.2/document.89/89-133r3.txt

http://en.wikipedia.org/wiki/Logical_Unit_Number

Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows
Handy NBU Links