Logging & Metrics

Abstract “How much faster will my VM’s disks be if I upgrade my ZFS-based (Z File System) NAS to 10 GbE?” The disks will be faster, in some cases, much faster. Our experience is that sequential read throughput will be 1.4✕ faster, write throughput, 10✕ faster, and IOPS, 1.6✕ faster. We ran a three-hour benchmark on our NAS server before and after upgrading to 10 GbE. We ran the benchmark again after upgrading....

0. Overview [Disclaimer: the author works for Pivotal Software, of which Dell is an investor. Dell is also an owner of VMware] It’s helpful to know the performance characteristics of disks when selecting a disk type. For example, the performance of a database server will be greatly affected by the IOPS of the underlying storage. Similarly, a video-streaming server will be affected by the underlying read throughput. 0.0 Highlights: If you need a fast disk, nothing beats a local vSphere NVMe drive....