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Does partitioning improve performance?
Your primary partition, with Windows installed, would live at the outside of the platter which has the fastest read times. Less important data, like downloads and music, could stay on the inside. Separating data also helps defragmentation, an important part of HDD maintenance, run faster.
What Sharding means?
Sharding is a method for distributing a single dataset across multiple databases, which can then be stored on multiple machines. This allows for larger datasets to be split in smaller chunks and stored in multiple data nodes, increasing the total storage capacity of the system.
Should one use a separate database for…?
One database for user data and one for application, or both in one? The detailed version is.. if an application has a database which needs to maintain application data AND user data, and the user data all references application data, it feels more natural to me to store them in the same database.
Is it OK to have multiple databases in StackOverflow?
Clearly, StackOverflow (as an example) does not have a separate database per user; we all use the same database. But if you were running accounting systems for different companies, I don’t think it would be acceptable (to the companies, and possibly not to the legal people) to share databases.
Do you need more than one database for sharding?
Sharding does not however mean one database (or instance) per tenant, but one per shard or set of shards, which may have several tenants each. You will need to discover the right tuning parameters for yourself, probably in production (hence it probably needs to be pretty tunable from the outset)
What happens when you have multiple customers in one database?
Add : One more issue – with multiple customers in a single database, every SQL query is going to need to ensure that the data for the correct customer is chosen. That means that the SQL is going to be harder to write, and read, and the DBMS is going to have to work harder on processing the data, and indexes will be bigger, and