I have a client with about 60TB of data on multiple HFS+ volumes, attached directly via fibre channel and shared using AFP. We are running around 85% capacity at present, and the budget to expand storage won't come into play for months. Our data growth suggests we'll hit 90% capacity in four months. I'm considering some sort of in-place filesystem compression that would transparently compress files at rest in storage, while not changing the workflows of the desktop users. (That is, they should just work as usual without having to decompress files.)
I understand HFS+ filesystem compression can be accomplished by using the ditto command; I've also successfully used the free afsctool to compress files. The latter has not been updated for quite some time and I'm unsure of the developer's commitment. I'm not a programmer, so the source code means little to me.
Are there any alternative commercial tools that will silently, automatically perform filesystem compression in the manner I seek? Preferably, there would be reliable enterprise support for the tool (say, telephone support). Or, would I be better off scripting compression periodically using ditto? Is HFS+ compression even the right path?