1.4. Tipologia dei cluster Pacemaker
Pacemaker non fa alcuna ipotesi in merito all'ambiente operativo, questo consente di supportare praticamente qualsiasi
configurazione ridondata come Active/Active, Active/Passive, N+1, N+M, N-to-1 e N-to-N.
In this document we will focus on the setup of a highly available Apache web server with an Active/Passive cluster using DRBD and Ext4 to store data. Then, we will upgrade this cluster to Active/Active using GFS2.