On Dec 16, 2013, at 1:48 PM, Dinse, Gregg (NIH/NIEHS) [V] <[email protected]> 
wrote:

> I'd like to put some or all of my home directory on a second disk (a 3-TB 
> hard drive).


If you’re going to move it then I would personally probably move the whole 
thing. To do that; duplicate the homedir from the SSD to the second drive…I 
would NOT do this with an external since it might not always be mounted.

Once the duplication is complete; log in with a different Admin account than 
your normal user account, open Users and Groups, and right click your normal 
account and select Advanced Options. In the resulting dialog…change 
/Users/account name to /Volumes/drivename/Users/account name. Save, Reboot, and 
login with your normal account…then write something to your home directory and 
verify that the newly written file got written to the large disk and not the 
SSD.

If you just want to move portions of your homedir…then copy them elsewhere and 
replace the folder (say ~/Movies) with a hard link to the new location. You do 
this with the ln command from terminal. A hard link is essentially the Unix 
equivalent of an alias…although I suppose that you could just use an alias 
instead even though it’s not quite the same. Man ln from terminal will give you 
all of the gory details on the command.

Make sure that you keep at least one Admin account with the homedir on the boot 
drive…this will make sure you can always login with that account.

It’s important for the OS to be on the boot drive and maybe applications…but 
stuff from your homedir gets read less often so moving it to a spinning drive 
will show a lot less perceived impact on system speed.



-----------------------------------------------
There are only three kinds of stress; your basic nuclear stress, cooking 
stress, and A$$hole stress. The key to their relationship is Jello.

neil



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