Trying to get some disk performance metrics (in particular, using munin), found that
/proc/diskstats does not exist.
yum provides '*/diskstats' but nothing except munin was found.
CentOS release 6.7 (Final)
uname -a Linux domain.com 2.6.32-042stab112.15 #1 SMP Tue Oct 20 17:22:56 MSK 2015 x86_64 x86_64 x86_64 GNU/Linux
So, how can I fix it?