Recovering Data from a Crashed NAS in Windows with VirtualBox and Ubuntu

Home NAS: Having a Network Attached Storage (NAS) is great and convenient, in that all of your data is typically backed up with 2 or more hard drives in a RAID setup in many modern systems. Such was the case with my home Synology Diskstation DS212. The idea is: one of the 2+ drives fails, you buy a new hard drive to replace the bad one, and the data from the good drive(s) automatically copy onto the newly installed blank hard drive, and you’re back up and running again. The Problem: What happens when both drives fail in a 2-drive … Read More

How Docker Addresses Kernel Level Redundancy

Docker Kernel Level Redundancy

Docker is making waves, especially among those in system administration, developer-operations, and cloud/virtualization roles. Here we attempt to explain Docker’s most disruptive feature without expecting prior knowledge of Docker’s underlying technologies. In a virtualized datacenter, we have one OS per VM and the hardware is virtualized for each VM. We may have any number of VMs running services (web hosting, backup services, Oracle, or others) on the same physical machine. Through the abstraction of hardware and OS data to files, we can migrate VMs across physical machines and increase the efficiency of cycles previously left idle when using a single … Read More