munin-monitoring/munin — pull request #282 by grooverdan (2014-10-28 04:39:49+00:00)
Title: ip/iostat_ios: also support /dev/xvdX devices

Xen kernels use xvdX:

brw-rw---T 1 root disk 202, 32 Jun 27 00:27 /dev/xvdc