problem checking out llvm

When I check out llvm this morning. I got this error, so I couldn't check
out. Looks like the disk is full.. Please let me know how to fix this
problem.

Thanks,
xiaodong

xli3|csil-suna33|/usr/dcs/projects/cs426/xli3/llvm|[10]% cvs update
cvs update: Updating .
? gnumake.out
cvs update: Updating Support
cvs update: Updating include
cvs update: Updating include/Support
cvs update: cannot close BitSetVector.h: No space left on device
cvs update: could not check out include/Support/BitSetVector.h
cvs update: cannot close GraphWriter.h: No space left on device
cvs update: could not check out include/Support/GraphWriter.h
cvs update: cannot close TarjanSCCIterator.h: No space left on device
cvs update: could not check out include/Support/TarjanSCCIterator.h
cvs update: cannot close hash_map: No space left on device
cvs update: could not check out include/Support/hash_map
cvs update: cannot close hash_set: No space left on device
cvs update: could not check out include/Support/hash_set

The disk is, in fact, full:

Filesystem Size Used Avail Use% Mounted on
csil-server1:/usr/dcs/csil-projects
                       16G 17G 0 100% /usr/dcs/projects

Since we haven't run out of space before, it would be advisable if
everyone would only keep a SINGLE copy of the LLVM source tree, and only
ONE compiled version. Some people might be keeping 2 or 3 or keeping
non-cs426-related files in their directories...

Now, how we're using 17gigs out of a possible 16 is anyone's guess.