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We have 14 macs in an office backing up to a 2TB Time Capsule, which sometimes shows delays but generally works. We need more space and while I can upgrade the drive to a 4TB I have a feeling we are working the hardware pretty hard so I'm looking at other options.

We are using the user account based backups on the time capsule; users backups should ideally be encrypted but at the very least need to have file permissions so that users can not see other users' backups. I would also like to have a quota for time machine backup size per user, which I understand isn't really supported in OS X Server but can be done with hand-created sparsebundles (ugh). With the drobo you have to create a volume per user but can enforce the size that way.

Does anyone have experience running Time Capsule successfully in an environment with around 10 to 50 computers? I am looking at a Drobo (probably 5N), Mac Mini Server with a disk array, or perhaps a Synology unit. 4TB is enough for now but I would like the storage to be expandable.

Finally, should I be using a cloud based service like CrashPlan? I really like the ability to restore a mac that has been lost or destroyed, and the fact that Time Capsule doesn't cause WAN traffic, but I don't like sys admin time.

Thanks in advance.

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closed as too broad by patrix Aug 19 '13 at 9:36

There are either too many possible answers, or good answers would be too long for this format. Please add details to narrow the answer set or to isolate an issue that can be answered in a few paragraphs.If this question can be reworded to fit the rules in the help center, please edit the question.

This question is rather broad and can't easily be answered by a single answer. Can you try to break it down into individual parts and ask separate questions for those? – patrix Aug 19 '13 at 9:36