You don't need to back it up. It's in memory. It's one of the kool things about Linux in that you can interface with the /proc system information as though it were set of files when in fact it is just a bit of memory. Makes finding info about the system very easy for a developer. Sure beats win32api bullshit.
0.00 0.00 0.00 1/391 12021
It looks like a file,
ls -l /proc/loadavg
-r--r--r-- 1 root root 0 Feb 18 13:29 /proc/loadavg
but it's just a piece of memory being updated when you ask it for information.
HTH (hope this helps)
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