Impact of DeepFreeze/HDGuard on User Profiles & Logins
I'm dragging up this old thing for discussion again.
Firstly, a bit of an explanation.
We use HDGuard across 2000 devices, ranging from labs to laptops running on wireless. Because of the sheer size of our campuses, and the number of students that use these devices, it is pretty much a given that we have to use one of these products.
We've been a HDGuard user for 7 years, and have always found it great. However, we are all know, there is a noticeable performance hit from running software like that on machines (we tested Deep Freeze and its performance hit was actually worse than HDGuard).
So, our issue. Because of HDGuard, obviously our machines never save a profile onto a machine. The impact of this the students still need to build a profile every time they login to a machine, and we enforce a reboot when a student logs off. Also, regardless of whether or not the machine students login to has our full lab image on it (including Autodesk, CS6, Archicad, Office, etc), or just a 'slimmer' version (Office + Basics), the time from boot to desktop can be anywhere between 3-5 minutes.
Now, I'm not sure how that compares to other schools, but for us it is unacceptable. This is on brand new hardware, but the issue with this is the disks in the machines are just too slow (5400RPM drives, probably 'green').
Now, when it comes down to it - these are my questions and discussion points:
- For environments that use HDGuard/DeepFreeze/Similar, what is your typical time for a machine to boot, a user to login, and a usable desktop environment to be up?
- For environments that don't use HDGuard/DeepFreeze/Simlar, what is your solution to keeping machines clean? Do you schedule imaging? Do you just trust your AV?
- Do you use Mandatory Profiles, and if so, how does that impact your network when you have 400-500 devices logging in in a period change? How does your WiFi hold up for that? Have you noticed any performance hits?
- If you do use mandatory profiles, and we have dabbled with that in the past, some software still generally freaks when it tries to do things with the user profile. ArchiCAD is one that comes to mind. How do you deal with that?
- Anything else to discuss or points to raise?
Thanks in advance,