Abstract: Methods and systems are described for compressing a tree structure associating network packet signatures with network packet metadata, the tree structure comprising a plurality of non-leaf nodes of single bit test nodes and a plurality of leaf nodes comprising network packet metadata, the method comprising determining whether the sub-portion of the tree structure is to be compressed. If determination is made that the sub-portion of the tree structure is to be compressed, generating a compressed node data structure, the compressed node data structure comprising a path of the sub-portion of the tree structure, the path comprising a sequence of bits formed by a concatenation of the single bits associated with each one of the consecutive non-leaf nodes of the sub-portion of the tree structure, the number of bits of the sequence being equal or greater than the compression threshold.

Abstract: A rack arrangement for a data center includes an assembly frame including vertical beams, lateral beams connected to the vertical beams, and transverse beams connected to the vertical beams. The transverse beams extend at least partly in a depth direction of the assembly frame. A rack-supporting platform is connected between two of the lateral beams and extends horizontally between four of the vertical beams. Each rack of a plurality of racks is configured to support computer equipment or cooling equipment for servicing the data center. A first rack is supported at least in part by two of the lateral beams. A second rack is disposed above the first rack and disposed atop the rack-supporting platform. The rack-supporting platform is supported in part by a top portion of the first rack such that a load of the second rack is partly applied on the first rack through the rack-supporting platform.

Abstract: Methods and systems are described for managing connections between client devices and servers. A client device may establish a connection with a connection manager device. The client device may request to establish a connection with a server. The connection manager may determine whether a user of the client device has user privileges to access the server. The connection manager may determine whether the user is a member of a group that has privileges to access the server. The connection manager may retrieve user or group credentials for accessing the server. The connection manager may establish a connection with the server. The connection manager may coordinate communications between the client device and the server. The connection manager may record the communications between the client device and the server.

Abstract: A rack arrangement for a data center includes at least one row of racks including a plurality of computer racks and an air handler rack. Each computer rack includes a computer rack frame including a housing unit for housing computer equipment. The air handler rack includes an air handler rack frame, a heat exchanger and at least one fan. The at least one fan is configured for pulling air into the air handler rack via an air inlet side and discharging air via an air outlet side of the air handler rack, directing air through the heat exchanger. An air inlet side of any one of the computer racks and the air outlet side of the air handler rack are on a cold aisle side of the at least one row of racks. At least one selected rack is stacked atop the air handler rack.

Abstract: A method of limiting a total power delivered by a power distribution unit having a plurality of output connectors is disclosed. A configurable power threshold is assigned for each of the output connectors so that a sum of the configurable power thresholds of the output connectors does not exceed a maximum rated power for the power distribution unit. A power level of a given output connector is sensed. A delivery of power by the given output connector is stopped when the power level of the given output connector exceeds the configurable power threshold for the given output connector. Power delivery may be resumed in response to receiving a user command to rearm the given output connector. A power distribution unit adapted to limit its total power delivery is also disclosed.

Abstract: Methods, systems, and apparatuses for a high availability (HA) storage cluster comprising a switch, a set of storage resources, and a set of nodes. Each node includes an HA module. The HA module maintains a real storage object representing a storage resource that provides an interface for accessing the storage resource. The HA module maintains a ghost storage object corresponding to the real storage object. The ghost storage object is configured to return an error in response to a call to the interface when the command is an I/O command and return a valid path when the command is a discovery command, connect command, or namespace ID command. When the node owns the storage resource, the interface of the real storage object is called to execute the command. Otherwise, the interface of the ghost storage object is called to respond to the command.

Abstract: A new rack equipped with at least one ToR switch is pushed into operational mode in a datacenter equipped with at least one operational datacenter switch. A script server fetches from a database information about a first networking configuration of the datacenter switch, and a minimal profile information of the rack. The script server devises a physical cabling plan between the ToR switch and the datacenter switch, reserves ports on the datacenter switch, computes and stores into the database enriched information of the rack, and provides cabling instructions relative to the physical cabling plan to a datacenter technician. The script server fills-in a configuration template, and causes a configuration builder to apply a first networking configuration of the ToR switch, applies a second networking configuration to the datacenter switch, pushes the rack into production, completes a second networking configuration of the ToR switch, and pushes the rack into operational mode.

Abstract: A cooling arrangement for autonomous cooling of a rack hosting components and fans comprises a closed loop and an open loop. Liquid cooling is used in the closed loop to transfer heat from heat-generating units of the components to a primary side of a liquid-to-liquid heat exchanger. An air-to-liquid cooling unit is used in the open loop to absorb heat expelled from the rack by the fans. A liquid from a cold supply line is first heated to some degree in the air-to-liquid cooling unit before reaching a secondary side of the liquid-to-liquid heat exchanger. The primary side being hotter than the secondary side, heat is transferred from the primary side to the secondary side of the liquid-to-liquid heat exchanger. The liquid is expelled at a higher temperature from the secondary side to a hot return line.

Abstract: A rigid sheet blank includes a first section configured to be bent about a first axis and a second section configured to be bent about a second axis. The first section has a peripheral edge and at least one tab extending from the peripheral edge. The at least one tab is bendable by hand. The second section defines at least one opening configured for receiving a respective one of the at least one tab during bending of the rigid sheet blank.

Abstract: A cooling assembly includes a plurality of dry coolers. Each dry cooler has an air intake, an air outtake, a heat exchanger panel for exchanging heat with air pulled into the dry cooler, and a fan rotating about a fan rotation axis for pulling air into the dry cooler and rejecting heated air out of the dry cooler. The heat exchanger panel includes a tubing arrangement for circulating fluid therein. The dry coolers are arranged in a plurality of dry cooler stacks. Each dry cooler stack includes a first dry cooler and a second dry cooler disposed above the first dry cooler. The dry cooler stacks are positioned such that the dry coolers of each dry cooler stack reject heated air into a common heat rejection zone. Each dry cooler is oriented such that the fan rotation axis of the dry cooler is substantially transversal to a vertical axis.

Abstract: A system for electric system failure detection and localisation in a datacenter comprises a plurality of power distribution units (PDUs), each of the plurality of PDUs comprising a plurality of electric power outlets and is configured to sense one or more power parameters relating to each of its electric power outlets, generate electric system operating data, and, upon receipt of a request, transmit of the electric system operating data to a networking device. A plurality of communicating circuit-breakers, connected to the plurality of PDUs, emits status signals. The networking device, communicably connected to the plurality of PDUs via a first datalink and to the plurality of communicating circuit-breakers via a second datalink, is configured to detect and locate an electric system failure based on the electric system operating data and the status signals. A method for electric system failure detection and localisation in a datacenter is also provided.

Abstract: Methods and systems are described for configuring a virtual network. Endpoints of the virtual network may be configured to restrict communications between devices that communicate via the virtual network. Each endpoint may comprise a list of addresses of other endpoints on the virtual network. An endpoint may be prevented from communicating with another endpoint by removing the other endpoint's address from the list of addresses stored by the endpoint.

Abstract: A heat exchanger assembly has a frame including: a plurality of legs; first and second lower transversal members extending perpendicular to and interconnecting the legs; a plurality of upstanding members extending upwardly from respective ones of the legs, a lower end of each upstanding member being connected to a corresponding leg at a junction therebetween; an upper transversal member interconnecting upper ends of the upstanding members; and an upper frame assembly. The frame components are weldlessly connected to one another. First and second heat exchanger panels exchange heat with air pulled into the heat exchanger assembly and are disposed in a V-configuration. An upper end of each heat exchanger panel is connected to upper retaining members of the upper frame assembly. A fan pulls air into the enclosed space of the heat exchanger assembly via at least one of the heat exchanger panels.

Abstract: A heat exchanger assembly includes a frame; first and second heat exchanger panels configured for exchanging heat with air pulled into the heat exchanger assembly and disposed in a V-configuration; a fan for pulling air into an enclosed space of the heat exchanger assembly; a plurality of lateral enclosing panels and at least one middle enclosing panel. The at least one middle enclosing panel extends perpendicular to the lateral enclosing panels and is disposed between the heat exchanger panels. A U-shaped lower end of the at least one middle enclosing panel includes first and second wall portions opposite one another. The lower ends of the heat exchanger panels abut the wall portions such that the wall portions are deflected relative to one another by forces exerted thereon by the lower ends causing a first and second seals to form between the wall portions and the heat exchanger panels.

Abstract: Embodiments as disclosed herein provide for methods and systems that give firmware in a given node the ability to control the hardware configuration and activity of every endpoint in every remote node within the array. The standard, inter-node, message passing interconnect and protocol are utilized for this purpose.

Abstract: A heat extraction system for an enclosure comprises heat pipes having an evaporating reference temperature and a condensing reference temperature lower than the evaporating reference temperature, an evaporator portion and a condenser portion. The heat extraction system includes a support frame adapted for connection to the enclosure. The support frame is arranged with respect to the heat pipes such that, when the support frame is connected to the enclosure, the evaporator portion is thermally coupled to the at least one computer and the condenser portion is thermally coupled to a surrounding environment of the enclosure. The heat pipes are arranged with respect to the enclosure so as to transfer thermal energy from the enclosure to the surrounding environment when an interior temperature of the enclosure is greater than the evaporating reference temperature and an exterior temperature of the surrounding environment is less than the condensing reference temperature.

Abstract: A rack adapted for receiving one or more components is disclosed. The rack includes a backplane, a pair of side panels extending from the backplane and internal support members on each side to receive and mechanically guide an initial alignment of components upon their initial insertion in the rack. A pair of male connectors mounted to the backplane is configured to mate with a corresponding pair of female connectors of each component to mechanically guide a final alignment of each component when the component is further inserted in the rack. Mechanical guidance may also be provided by, or supplemented with, a connection capable of providing liquid cooling to the rack. A system including the rack and the component inserted in the rack is also disclosed.

Abstract: A method for attracting users to a web page is disclosed. A list of keywords relevant to the web page is defined at an operator interface. Each keyword of the list of keywords is independently submitted to a search engine. A result page is received for each keyword. A plurality of information elements is extracted from each result page. A score is calculated for each keyword based on the plurality of information elements extracted from each result page. At least one most attractive keyword is selected from the list of keywords, the selection being based on at least one best score among the scores for the keywords of the list. The at least one most attractive keyword is output on the operator interface as a recommendation for updating the web page to include the at least one most attractive keyword. A server implementing the method is also disclosed.

Abstract: A method and a server for defining a web site development strategy are disclosed. A query to a search analytics provider carries a main keyword defined for the web site. A response carries a list secondary keywords and a number of past search requests for each secondary keyword. Secondary queries are sent for each secondary keyword of the list and secondary responses carry additional lists of secondary keywords. A keyword dataset having an entry for each secondary keyword associated with its corresponding number of past search requests is stored. Hierarchical clusters are formed in the keyword dataset, each hierarchical cluster comprising a theme representing a group of analogous secondary keywords and a sum of past search requests for the group. A list of themes is output as a recommendation for populating the web site by creating a web page corresponding to each theme.

Abstract: Methods and systems are described for applying a configuration to networking devices. A configuration and networking device filter may be received. The networking device filter may be used to search for target networking devices. A common schema may be generated for the target networking devices. The configuration may be compared to the common schema to determine whether the configuration is valid for the target networking devices. A plurality of commands may be generated to apply the configuration to the target networking devices. The commands may be executed, thereby applying the configuration to the target networking devices.