notes

I’ve spent some time exploring and studying the use and configuration of VMware Flash Read Cache (vFRC) and its benefits.  These are my notes. Useful Resources VMware Flash Read Cache 1.0 FAQ vSphere 5.5 Flash Read Cache Documentation On a guest virtual machine, vFRC is configured in Disk configuration area.  The virtual machine needs to…

Read More My Notes and Benchmarks on VMware Flash Read Cache

A few notes on my Observium setup on a Debian 8 Jessie system. All configuration options and details can be found at the Observium documentation page. Bad Interfaces These entries are in /opt/observium/config.php $config[‘bad_if’][] = voip-null; $config[‘bad_if’][] = virtual-; $config[‘bad_if_regexp’][] = /serial[0-9]:/; $config[‘bad_if’][] = loopback; $config[‘bad_if’][] = lo; $config[‘bad_if’][] = dummy; $config[‘bad_if_regexp’][] = /tunnel_[0-9]/; $config[‘bad_iftype’][]…

Read More Observium Notes

Hacked my way through getting Observium to pick up the nfsen RRD so that I see the Netflow tab in the device in Observium. Here’s what I did… Install Prerequisite Software apt-get install gcc flex librrd-dev make librrdp-perl librrds-perl libsocket6-perl libmailtools-perl mrtg rrdtool Install nfdump Download nfdump from SourceForge: https://sourceforge.net/projects/nfdump/files/stable/nfdump-1.6.13/ tar zxvf nfdump-1.6.13.tgz cd nfdump-1.6.13/ ./configure –enable-nfprofile –enable-nftrack make &&…

Read More Observium nfsen configuration notes