There's a bunch of ways to deal with this, I think. But at a higher level, if it were me, I'd turn the problem back on them (nicely, but persistantly) like they're a call center. "That doesn't solve my problem. I need a single drive that performs well and is larger than 2TB. What can we do to solve that problem?". Maybe they consider something like this, or a RAID array, or an attached SAN array, or just freaking upgrade vSphere if that's what's restricting them. To me, this is the server team's problem to solve, so make them solve it rather than workaround their problems. 2TB is ludicrously small to be limited by in this day and age.
Thanks Matt. I agree it should be their task to find a solution, not me. However, it was good in that I will be making some config. changes to reduce hard drive consumption. I did ask IT to find a solution (it's below).
Since the 10.3.2 upgrade I've been swamped by little fires I've had to stomp out. For one thing, if you upgrade to this version or higher then READ THIS: https://community.tableau.com/thread/240472. I had to turn it off for all of our Sites. Also, VizAlerts 2.0.1 does not like 10.3.2 so it looks like I'll need to upgrade that, too.
For my TS I'll be reducing the number of days of history we keep and perform a nightly tabadmin cleanup (w/o stopping the TS though). For increasing hard drive space our IT team said they would use this method:
Tableau Support offered this:
A: + Older Virtualization platforms are limited to 2 TB for virtual hard disk size, but new ones are not. The VHDX virtual HDD for Generation 2 VM on later versions of Hyper-V support up to 64 TB. It is probably by far the most complicated, expensive and impractical option.
A: + Next is that some Virtualization platforms allow a VM to directly access a Hard Drive attached to the system, so you might be able to attach a 4TB drive and use that for the D: drive on your VM.
A: + You can also attach multiple 2 TB Virtual HDD and use Windows Software Raid Functions to build a larger virtual disk.
A: + Windows supports iSCSI protocol, so you can create a larger iSCSI drive and attach it to the Windows as a drive.
So there are other solutions of course so I'm just going to mark this as Assumed Answered.