I have an NSS Data Pool which has a maximum size of 1Tb, within this pool
I have 3 volumes with different sizes but no bigger than 250Gb. I have
about 240Gb unallocated space.

One of the volumes is running out of space and I want to allocate some of
the spare 240Gb to this volume.

What is the best way of going about it? Can I just increase the quota on
the Volume from 250Gb to say 300Gb? Will it damage what is there already?

Many thanks