Looking to deploy M1 in the cloud and considering standard architecture considerations like load balancing across regions. Does M1 (specifically 1.9) support being run across multiple servers? If so what is the standard practice for running its file store?
Yes, Magento 1 (specifically 1.9) supports being run across multiple servers. This is called a multi-server or distributed architecture. In a multi-server architecture, the Magento application is split across multiple servers. This can improve performance and scalability.
There are two main ways to run Magento 1 in a multi-server architecture:
The standard practice for running Magento 1's file store in a multi-server architecture is to use a distributed file system. This is because a distributed file system can improve performance and scalability.