Unfortunately they're 2008 R2. I have seen deduplication working while training, looks like it works well. I'll have a look at handbrake and see what options it has, thank you.
HDGraph is a really good tool for finding space usage, it is likely to only be certain staff if it is video's or photo's.
I use JDisk to gather information about where all the data lies, i'll try out HDGraph and see it it's better.
I normally do name and shame, sometimes it helps but in the long term it just ends up being someone else and also in this case, since the school have 90 iPads, 3 sets and the rest staff they all seem to be filling the server.
Yes Apple are terrible with roaming app data, I always delete any iOS updates I find. But again, I've got that covered as the iPads are deployed via an MDM and don't need iTunes to update, so rarely when I do find one, it's the staff members personal device.
Any ideas with archiving old data? I was thinking on purchasing external HDs and moving data according to year then locking them away in the safe, good? bad?