Unmounted Volume Limit in Windows 10?

Is there a limit to the number of physical disks that can be connected to, but not mounted in a Windows 10 Pro x64 system?
If so, is there a registry key that can be used to increase this limit?

I use a 3rd party fiber connected storage system that presents available volumes to the system, and then mounts them as drive letters using a desktop client.
There are currently 97 of the volumes (again, not mounted with drive letters until I use the desktop client presents them as drive letters.)

On systems with locally attached storage or when plugging in an external USB drive, the system locks up. The magic number of total drives seems to be 100.
100 or fewer and all is well. Connect drive 101, and things stop working.

It's also possible that this is some limitation or problem with  the 3rd party software, but I thought that I would start with the OS first as a logical possibility.

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

andyalderSaggar maker's framemakerCommented:
What fibre channel HBAs do you have?
njwireheadAuthor Commented:
They're ATTO Celerity FC-41ES cards.
Adam BrownSr Solutions ArchitectCommented:
Windows has a limit of about 28,000 "learned" or connected drives. With mount-points, all of those can be mounted at the same time if you're crazy. USB can have significant limits on number of devices, but if you're on a Fiber SAN, that's not likely applying.

https://blogs.technet.microsoft.com/privatecloud/2013/07/23/hyper-v-virtual-fibre-channel-design-guide/ might give you some guidance. It's possible you're running up against License-level limits in the version of Windows you're using, but that should happen way earlier than 100, as far as I know.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
andyalderSaggar maker's framemakerCommented:
It's more likely to be the driver running out of resources but you would have to ask Atto tech support as there's no documented limit from them that I could find.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows 10

From novice to tech pro — start learning today.