Abstract: Methods, systems, computer-readable media, and apparatuses for providing service to access nodes are presented. In some embodiments, a computing device may generate a geographical coverage map comprising a plurality of wireless access nodes respectively at a plurality of geographic locations and a wireless coverage range for each wireless access node. The computing device may receive from at least one wireless access node of the plurality of wireless access nodes an indication that the at least one wireless access node detected a first wireless access node of the plurality of wireless access nodes. The computing device may refine a first coverage range of the first wireless access node based on a respective geographic location of the at least one wireless access node. In some embodiments, a first wireless access node may receive and forward join emergency mesh (JEM) messages to establish a wireless network.

Abstract: The apparatus is for use with a LAN that has a backup system, an Internet connection and an associated memory storage capacity. The apparatus comprises a computer case, data storage devices and a motherboard. The computer case is adapted to receive data storage devices at least equal in capacity to the LAN. The data storage devices are mounted in the case and have capacity at least equal to that of the LAN. The motherboard has an operating system, a virtualization product, a NAS program and a firewall. The firewall is operatively interposed between the LAN and the Internet connection to protect the LAN from attack. The NAS is configured to be active only during backup operations initiated by task manager components of the virtualization to facilitate a location for the backup of a mirror copy of the data on the LAN by the backup system on the data storage.

Abstract: In one embodiment, a method for storing a snapshot of data in a database includes creating a root indirection set for the snapshot of data and maintaining a deleted pattern in the database. The deleted pattern is not removed from a pattern set for a node in a table of the database when the pattern is deleted in the database. The method includes providing access to the snapshot of data using the created root indirection set, the created root indirection set accessing the deleted pattern.