I was recently asked to investigate why Nutanix storage was not as fast as a competing solution in a PoC environment. When I looked at the output from diskspd, the data didn’t quite make sense.Continue reading
A Nutanix cluster can persist a replicated write across two nodes in around 250 uSec which is critical for single-threaded DB write workloads. The performance compares very well with hosted cloud database instances using the same class of processor (db.r5.4xlarge in the figure below). The metrics below are for SQL insert transactions not the underlying IO.
Tips and tricks for using diskspd especially useful for those familar with tools like fioContinue reading
How to ensure performance testing with diskspd is stressing the underlying storage devices, not the OS filesystem.Continue reading
How to install and setup diskspd before starting your first performance tests and avoiding wrong results due to null byte issues.Continue reading