I'm new to HA topic and I'm trying to get some bigger picture here. I have 2 hosts that run few services - mostly nginx
and NFS
for other servers. My primary goal was to make nginx
redundant. As I knew VRRP from networking equipment I decided to use keepalived
. Unfortunately to my surprise it turned out that NFS HA is not as simple as changing ip.
Most of tutorials around the web describe DRBD+peacemaker+(heartbeat/corosync)
combo and it seems to be exactly what I'm looking for. I've read about role of each of those components and came to conclusion that keepalived
does pretty much the same as heartbeat/peacemaker
.
So my question is - can peacemaker
use keepalived
as communication layer instead of those popular two solutions or it's not compatible? I must say I'm really satisfied with rapid switch time provided by keepalived
.