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So I just installed an SSD in my MBP and have been a bit concerned about running out of disk space. I noticed that /private/var/vm holds an 8.6 gb sleepimage file as well as swap files. I'd be much happier if they existed on my old (regular) HDD which is also still inside my machine as well.

I can't think of anything that would really go wrong with this, but can someone tell me whether or not I'll totally screw up my computer by symlinking /private/var/vm -> /Volumes/OldDrive/private/var/vm?

I read in this superuser post that if the target disk isn't mounted at the time that the swap files are being created, then it could "fake it" (so to speak) and create a directory "/Volumes/OldDrive", forcing my actual drive to be mounted at "/Volumes/OldDrive 1".

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It looks like an app called Xupport from Applicorn should set this up in the correct way (trusting the developer to have worked this out - you could always ask them): http://www.applicorn.com/xupport/help/Manuals/English/pgs/optimization.html . However, the rest of their site, including the download, appears to be down now. You'd also want to check it'll work for Lion, though it seems unlikely the swap setup would have changed much.

PS: Your SSD will last longer if you move swap off it too.

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Intriguing... Though the site being down (still) is not particularly reassuring. – steve Dec 5 '11 at 22:41
Yeah.. if you ever do work it out, or want to discuss the swap issue, let me know via my (still standing) question superuser.com/questions/364204/… – tog22 Dec 6 '11 at 12:04
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