Hello, @mobicom9

You can check this question that was previously asked in our community:

https://www.digitalocean.com/community/questions/block-storage-volume-performance

The reply from Ethan Fox is that one to check out.

Block storage volumes are network-based block devices that provide additional data storage for Droplets. You can move them between Droplets and resize them at any time.

Volumes are most useful when you need more storage space but don’t need the additional processing power or memory that a larger Droplet would provide, like:

• As the document root or media upload directory for a web server
• To house database files for a database server
• As a target location for backups
• As expanded storage for personal file hosting platforms like ownCloud
• As components for building more advanced storage solutions, like RAID arrays

Performance: Like Droplets, volumes are backed by SSDs.

https://docs.digitalocean.com/products/volumes/

If you’re interested to use block storage as /home2 on your cPanel server you can also check this question in our community:

https://www.digitalocean.com/community/questions/how-do-i-add-a-new-volume-disk-to-my-droplet-for-whm-cpanel-to-use-as-home2-how-can-i-downgrade-downsize

Hope that this helps!
Regards,
Alex