iCanCloud provides a set of components which emulate the behavior of real components in the real architecture, for instance, networks, disks, file systems, and memory.
A channel is a set of resources (network bandwidth, disk I/O bandwidth, etc).
Whereas, in Scenario three, task slots experience network congestion (disk contention), and slot processing speeds fluctuate.
The results show that the performance of VM construction is primarily limited by available network and disk I/O.
Instead of placing the entire OS in the unikernel container, he puts the absolute bare minimum, which usually only includes a network and disk drivers.
Simulation results of the highly heterogeneous environment confirm again that ECT is much more robust to network congestion (disk contention) than the Hadoop scheme.
And you can argue that it set the stage for emerging technologies like cloud-based backup because you're not going to do that via tape but rather over a network to disk.
Although current virtualization technology can isolate CPU and memory usage effectively, co-located VM's still have to compete for both network and disk bandwidth, especially in the case of I/O intensive workload, such as the MapReduce jobs.
Likewise, each user's files are stored centrally in a network of disks.
