I want to create a volume from two file systems located on two separate physical disks.
I do not want to use a volume manager for the same.
I want to do this programmatically.

I do not want the concept of disk groups or any such granuralarisation.

Simple : 1 disk + 2nd disk should be treated as a volume.
Is there any way I can link two file systems on two disks?

can anyone offer a solution?
Thanks in Advance

And you don't wanna use RAID or LVM...

How about an intricate system of symlinks? You could have directories under the main directory pointing towards the other partition but it will just appear as another directory sub-directoried out...

Here's what I mean:
Let's say you have /home/music
And in /home/music you have:
wav
mp3
ogg
And you wanna make another directory called:
aiff
But you want this directory to have more room because the drive is getting filled up, so you could:
mount the new partition, the larger one, at wherver, we'll use /mnt/data and then symlink to it or even mount it up at that point. For simplicity, let's go with symlink:
ln -sf /mnt/data /home/music/aiff
This will create a directory:
/home/music/aiff
That is essentially pointing at:
/mnt/data
And all the music will be placed there, however your software and users will be able to access it by going to:
/home/music/aiff

Welcome to LQ

Would that be something that might help you achieve your goal?

Cool