[arch-general] harddisk suspending far to often

[G. Schlisio]

hi,
after updating my laptop today [0] (no testing enabled) i notice that my 
harddisk keeps spinning down and up every 10 seconds or so.
might this be related to the update or where can i stop this?
help very appreciated
georg

[0] packages updated today:
pcre
libssh
tdb
bind
lshw
soundkonverter
sage-mathematics
lib32-glib2
lib32-harfbuzz
lib32-pango
lib32-fontconfig
latex-beamer
linux-headers
linux-docs
linux