Splitting up memory between users

Leikela

macrumors newbie
Original poster
Dec 5, 2011
3
0
So I bought a new iMac with a 1TB hard drive, and I was wondering if there was a way to partition that memory between users? That is to say, if there are 4 user profiles on the computer, is there a way to set things so that each user profile can only access up to 250GB of memory?
 

GGJstudios

macrumors Westmere
May 16, 2008
44,427
786
You can easily partition the drive, but unless you use encryption and lock each partition, all users would be able to see all partitions, if they could see any. If the users respect the other user's partitions, no problem. Use Disk Utility to partition the drive.

How to partition an external hard drive
 

Leikela

macrumors newbie
Original poster
Dec 5, 2011
3
0
Disk Utility

For the encryption you mentioned, is that just a button I click or a password I type in somewhere? The encryption wouldn't prevent a non-administrator from using memory, right, just from changing their allotted access?
 

tmagman

macrumors 6502
Nov 7, 2010
413
1
Calgary AB
click on the drive on the right, then you'll see in the middle right a few buttons that say 'erase' 'partition' etc...
 

GGJstudios

macrumors Westmere
May 16, 2008
44,427
786
So I'm in Disk Utility but I don't see where to partition the drive at.
Follow the instructions in the link I posted.
Also, for the encryption you mentioned, is that just a button I click or a password I type in somewhere? The encryption wouldn't prevent a non-administrator from using memory, right, just from changing their allotted access?
If you encrypt a drive, you need the password to access it. If you have a user who is likely to do something like trying to repartition the drive, which can destroy data, I wouldn't give them access to the drive at all.
 

Leikela

macrumors newbie
Original poster
Dec 5, 2011
3
0
Partition vs. Allocate

Perhaps partition is the wrong word then? When I went to school, the computers were set up so that each of our user accounts had a certain amount of memory available to it. Once we hit our limit, that was it, we couldn't save anymore. There was only one partition as far as I know, it was merely that our individual access to memory was limited to a certain amount. That's more what I'm looking for.

Regarding the link you sent me, what happens if I later decide to change the size of a partition? (e.g. change two partitions of size 500GB to 700GB and 300GB, respectively?) Would it delete all my data, even if I didn't have 300GB worth of stuff on it?
 

GGJstudios

macrumors Westmere
May 16, 2008
44,427
786
Perhaps partition is the wrong word then? When I went to school, the computers were set up so that each of our user accounts had a certain amount of memory available to it. Once we hit our limit, that was it, we couldn't save anymore. There was only one partition as far as I know, it was merely that our individual access to memory was limited to a certain amount. That's more what I'm looking for.
That sounds like a network drive they set up, giving each networked user a specified amount of storage. FYI, "memory" usually refers to RAM, where "storage" or "drive space" refers to space on a hard drive, which is what you're talking about.
Regarding the link you sent me, what happens if I later decide to change the size of a partition? (e.g. change two partitions of size 500GB to 700GB and 300GB, respectively?) Would it delete all my data, even if I didn't have 300GB worth of stuff on it?
Under some circumstances, you can resize a partition without deleting data. In some cases, data is lost during partition resizing. It's always a good idea to backup your data, in case something goes wrong.
 

gnasher729

macrumors P6
Nov 25, 2005
16,966
3,870
Perhaps partition is the wrong word then? When I went to school, the computers were set up so that each of our user accounts had a certain amount of memory available to it. Once we hit our limit, that was it, we couldn't save anymore. There was only one partition as far as I know, it was merely that our individual access to memory was limited to a certain amount. That's more what I'm looking for.
250 GB is quite a lot for a single user; you'd only exceed that if you have a big video library, or massive photo or music libraries. If there is _one_ user exceeding that limit, the easiest solution is giving that person an external hard drive.
 
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