Mask USE=rados fro rrdtool, since it would pull in ceph.
diff --git a/profiles/arch/alpha/package.use.mask b/profiles/arch/alpha/package.use.mask
index af5c6ff..fdeefa4 100644
--- a/profiles/arch/alpha/package.use.mask
+++ b/profiles/arch/alpha/package.use.mask
@@ -2,6 +2,10 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
+# Tobias Klausmann <klausman@gentoo.org> 04 Feb 2016
+# sys-cluster/ceph is not broken per se, but a maintenance burden.
+net-analyzer/rrdtool rados
+
 # James Le Cuirot <chewi@gentoo.org) (30 Jan 2016)
 # scrollview requires Java, which is unsupported on Alpha.
 app-text/tesseract scrollview