All DR Appliance platforms are currently affected. Meltdown and Spectre are hardware-level vulnerabilities. As such, every operating system is susceptible. The DR Series Appliance runs on Dell hardware platforms with CentOS operating system. To address these issues we will be adding kernel updates, for the OS, and BIOS updates for the platform. This will address all issues as we do not run any virtualization software on the appliance. For the DR Appliance the risk is minimal due to the fact the only unprivledged users (non-root users) that access the system are doing so from restricted shells and also do not allow loading of 3rd party programs.
As updates are available we will update this knowledge base article.