David Pless

David Pless

Principal Program Manager - Microsoft Corporation

Orlando, Florida, United States

David Pless is a Principal Program Manager in Azure Data, based in CentralFlorida with over twenty years of experience in data technologies. David has been with Microsoft since 2006 and is currently responsible on Azure SQL Virtual Machines with a focus on sizing, performance, and storage. David has supported on SQL Server performance tuning and optimization, Azure Data technologies, Power BI and SQL Server Reporting Services, and High Availability solutions.

At Microsoft, David has worked as a Technology Specialist as well as a Premier Field Engineer in Customer Support Services.

Before Microsoft, David Pless was a MCS partner consultant and a Database Administrator in Atlanta, Georgia.

David is a Microsoft Certified Master (MCM) and has spoken a SQLSaturdays, SQLPASS, SQLintersection, Tech Ready, and regularly speaks at the local user groups in the Southeast.

Area of Expertise

  • Information & Communications Technology


  • Microsoft SQL Server
  • SQL Server Reporting Services
  • SQL Server DBA
  • Azure SQL Server
  • Azure Advanced Threat Protection
  • Azure Data & AI
  • Azure SQL Database
  • Azure Data Platform
  • Data Security
  • Data Strategy & Leadership

03.10.2021 - Deep Dive: Azure SQL Virtual Machine Sizing | Data Exposed Live

You choose a VM when your application requires more control over the computing environment than the other platform-as-a-service options offer. This can be due to vendor requirements, familiarity with virtualization, ease of migration and other scenarios. When selecting a virtual machine to host your SQL Server workload in Azure, you need to choose a virtual machine size that provides optimal performance and fits your organization’s budget.

We will cover topics such as the different virtual machine types that are most appropriate for SQL Server workloads, optimal memory-to-core ratios for various workload types, and features unique to Azure such as write acceleration that can help boost your performance without breaking the bank.

Watch Now: https://www.youtube.com/watch?v=MeuegGS2HEU&ab_channel=AzureSQL

05.12.2021 Azure SQL Virtual Machine IOps, throughput, and Caching

Optimizing Virtual Machine storage is one of the most critical areas to master when considering a migration to Azure SQL Virtual Machine. Azure virtual machines have input/output operations per second (IOPS) and throughput performance limits based on the virtual machine type and size.

Additionally, OS disks and data disks will have their own IOPS and throughput limits. Workloads can be limited at either the virtual machine or the disk level. In this session we demystify storage and how VM sizing will impact performance limits. We will cover what you should consider when choosing Azure disks and storage pool configurations. We will discuss Storage Spaces and Storage Pools.

We will also simplify the correct block level, interleave, and the NumberofColumns settings necessary for an optimized storage configuration. Finally, we will review how to monitor IOPs and throughput limits of your virtual machine, the underlying disks, and the caching capabilities of the ephemeral disks and the storage cache.
Get ready, this is one of the most important sessions to get the best performance out of your Azure virtual machine deployment!

'Azure SQL VM Reimagined' content posted here:

06.06.2021 - 6.11.2021 SQLIntersection / Microsoft Azure & AI Conference

SQL Server and Microsoft Azure and AI Conference held in Orlando, Florida covering Azure SQL Database, Managed Instance, SQL Server, Azure SQL Virtual Machine and related cloud topics.


David Pless

Principal Program Manager - Microsoft Corporation

Orlando, Florida, United States

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