From the course: Designing Highly Scalable and Highly Available SQL Databases
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High-level physical design
From the course: Designing Highly Scalable and Highly Available SQL Databases
High-level physical design
- [Instructor] Now, another piece of the kind of initial design is our high-level physical design. In here, what we're doing, is basically kind of thinking through how we want the data organized on our storage systems. So we're actually thinking about the physical layout of data relative to other pieces of data. Now there are a couple of things that we think about in terms of abstractions. One is called the tablespace and tablespaces are ways of grouping data. And we do that at a schema level. But then there's also something called partitions. And we use those at a table or index level. And both tablespaces and partitions allow us to take advantage of parallel operations like parallel writes and parallel reads. And what we'll find is that parallelization is a key element of scalable databases. Now, another thing we can think about at high-level design, which is often used in highly performing databases, is caching.…
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