UDF for external USB drives?
I want to format some large (500GB to 1 TB) external hard drives so that they are universally read/write accessible from any modern operating system - Win, Linux, BSD, Mac, whatever. And I want to be able to do this natively from these OSs without loaded any installable drivers.
Content and file sizes will be mixed - anything from text files of several KB to multi-GB movie files. I am not concerned about file ownership, permissions, etc.
Seems to me that UDF (Universal Disk Format, IEC 13346/ECMA-167) is what I want to use. Although it's commonly used on DVDs and CDs, occasionally on Compact Flash and thumb drives, I see hardly any mention of it for hard drives beyond the mere fact that it's possible.
I know it's possible, at least on small drives. I stuck an old 10GB drive in an external USB case, plugged it into a Win7 machine, formatted it UDF (from the CLI,"Format D: /FS:UDF"), copied some PDF files to it, read them back, plugged it into my laptop running SL6 (RHEL6) read the PDFs, added more files to it, took it back to the Win7 machine, read them.
So far, so good.
But what about larger drives, like 500GB or 1 TB ? Any reason to not use UDF on those ? Any reason to not use UDF at all ? Is there anything better ?
What worries me is, if UDF is as good and universal as it seems, why isn't everybody using it for hard disks ?
Life has taught me to ask that very question. Too many times, I've gone against the herd only to eventually find out the hard way that there was a very good reason nobody else did it my way.:)