Free Mail Server on OCI – Data Block Volume

This is the series of articles about how to setup free own mailserver on OCI.

• Free Mail Server on OCI – Oracle Cloud Account
• Free Mail Server on OCI – Your Domain Name
• Free Mail Server on OCI – IPv4 Address, PTR
• Free Mail Server on OCI – Data Block Volume
• Free Mail Server on OCI – Virtual Cloud Network
• Free Mail Server on OCI – Compute Instance
• Free Mail Server on OCI – Swapfile
• Free Mail Server on OCI – OCFS2
• Free Mail Server on OCI – Docker, Cron, Certbot
• Free Mail Server on OCI – Docker-Mailserver

How to create Oracle Cloud Account and basic setup you can find in this article.
How to link your Domain Name to OCI you can find in this article.
How to reserve public IPv4 address and setup PTR in OCI you can find in this article.

Data Block Volume

I will use 2 Block Volumes for my OCI VM, one Boot Volume (will be created with VM instance later) and another one is the Block Volume to store the config files and data for the Mail Server. Let’s create it now.

Go to Storage -> Block Volumes:

Click on Create Block Volume button, give it a name, choose your compartment (more about compartments you can read here), choose an Availability domain, if you want more than a 50GB of size – click Custom radio-button and set the size (you can also set other parameters, it won’t change the price for Block Volume until the total size of all your Block Volumes, including the Boot Volume, will be over the Always Free requirement – 200GB):

You can leave the other settings by default (or change it, more details about Block Volumes you can read here), and click on Create Block Volume button:

Once it’s created you should see it in the list:

Now you should be able to attach it to your VM instance, once it’s created.

Time to create VCN – Oracle Virtual Cloud Network, follow this article.