Dell's confused state of mind
Dell's success is due almost entirely to their Desktop and laptop sales with Microsoft Window. They also experienced a blip with small server sales with Windows, but now that these 2 categories are on down swing. along with that of Lenovo for same reasons, which all other periphery business cannot make up for in such negative trends.
Two possible reasons can be pointed to as reasons for this dilemma. Dell was never a networking or enterprise service company at heart, and recent. rapid global technology moves to Mobile computing – where Dell is non-existent - and Cloud Domputing/Docker virtualization/containerization amoung other related developments has caught the company out completely, with outdated networking architectures (no software Defined Networking) and partnering with Microsoft exclusively for Cloud Computing/virtualization when Amazon AWS and Openstack based products were eating Microsoft's lunch.
The other significant reason is technology industry, enterprise and governments adoption of Linux for all infrastructure requirements against the Windows preferred and pushed from Dell.
A recent very credible study of technology needs going forward showed that 85% of the Fortune 1000 corporations, US government departments and especially international governments declared their intent of making Linux and other Free/Open Source Software (FOSS) the foundation of their technology use.
Dell and Quest software division has very little experience and no expertise in non-Microsoft technologies, and SonicWall was initially a Linux structured product, so it makes perfect sense for the company to ditch these technologies.
The really difficult choice comes however, when Dell's Microsoft obligations and commitments, not to mention their inseparable bonding, come in direct conflict to strongly competitive solutions from EMC and especially VMWare that Microsoft has been furiously attempting to destroy for several years.