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Passing block-level storage through a virtualization platform is not an easy task, because you're talking about a physical connection to the block storage (i.e.
by distantsounds 9y ago
Passing block-level storage through a virtualization platform is not an easy task, because you're talking about a physical connection to the block storage (i.e. fiber, 10G copper, etc) passing through the hypervisor, to become accessible at the VM level. When dealing with a cluster of hypervisors, making that block-level storage accessible, and portable, to entire infrastructure, requires a level of engineering effort.
- sneak 9y agoPlus all the existing difficulty of running a highly available, highly performant SAN at scale before you even get to counting the added complexity of virtualization. That alone is a task of a difficulty level that many have forgotten, what with AWS et al handling most of it for us for the last decade.