Two storage servers will use DRBD to replicate data and GlusterFS for sharing directories between MongoDB and Web Servers.
Prerequisites
- Two storage servers with static IPs.
Step-by-Step Guide
Step 1: Install DRBD and GlusterFS on Both Storage Servers
1. Install DRBD and GlusterFS:
sudo apt install drbd-utils glusterfs-server -yStep 2: Configure DRBD
1. Create a DRBD Resource File:
sudo nano /etc/drbd.d/data.resDRBD Resource File:
resource data {
protocol C;
on STORAGE1 {
device /dev/drbd0;
disk /dev/sdb1;
address :7789;
meta-disk internal;
}
on STORAGE2 {
device /dev/drbd0;
disk /dev/sdb1;
address :7789;
meta-disk internal;
}
}2. Initialize DRBD:
sudo drbdadm create-md data
sudo drbdadm up dataStep 3: Configure GlusterFS on DRBD-Backed Storage
1. Create a Shared Directory on both nodes:
sudo mkdir -p /data/glusterfs2. Create a GlusterFS Volume on STORAGE1:
sudo gluster volume create data replica 2 <IP_STORAGE1>:/data/glusterfs <IP_STORAGE2>:/data/glusterfs force
sudo gluster volume start data
