Abstract:
A method and apparatus for a thermally conductive packaging technique for cooling electronic systems. A heat source is partially surrounded by a set of thermal transfer media. A set of thermal transfer shells partially surround the set of thermal transfer media. The heat source connection means are left exposed and utilized for connection to the electronic system. The heat source, the set of thermal transfer media configured to partially surround the heat source, and the thermal transfer shell partially surrounding the set of thermal transfer media form a thermal transfer module. Thermal transfer modules may be placed in thermally conductive cells. A set of thermal transfer sheets are placed in contact with both or either of the thermal transfer module and the thermally conductive cell, facilitating a heat exchange with an environment external to the thermal transfer module.
Abstract:
A method, computer program product, and data processing system for continuously writing new data to a redundant array of independent storage devices without interrupting the writing of new data to the array to reconstruct missing data from a failed device or failed media is disclosed. A fault-tolerance scheme using multiple independent parity values is used to record data to the array. In the event that one of the volumes in the array fails, the remaining volumes continue being written to, but with fewer data or parity values being employed. The failed volume can then be reconstructed following the completion of writing the media set currently being written.
Abstract:
This data storage subsystem creates multiple virtual storage devices on demand, which are available to any and all of the system's host data processors. The subsystem utilizes a plurality of tape devices and automated tape libraries with the tape devices connected to a plurality of data processors via a high-speed network. A set of software components, the Network Storage Manager (NSM) controls all system operations. Depending upon the requested storage performance, one or more tape devices are assigned to a virtual device. Data stripping across multiple tape devices allows the storage bandwidth of a virtual device to be changed on demand. The overall capacity and performance of the subsystem is scalable by adding or removing storage devices. The NSM system controller contains a plurality of software elements including: Resource Allocation, Resource Configuration, Resource Management, and Security Management modules. The use of a networked storage manager enables the storage devices to be managed as a pool and yet be attached directly to the network as individual resources. The NSM also provides the mechanism for the enterprise management to control tape device allocation and configuration as well as other functions, such as tape cartridge movement, data migration and data security.
Abstract:
A method to control the inside environment of a cartridge is disclosed. The method includes providing a cartridge having a first chamber for the data storage media and a second chamber for material to control contaminants inside the cartridge. A selectively openable structure permits communication of the air within the first chamber to the material in the second chamber to decontaminate the first chamber.
Abstract:
The removable media management system operates with a manual, an automated, or a combination of subsets of manual and automated library system to store and retrieve media cartridges for an associated plurality of drive elements. This system enables the use of a plurality of types of media within the single monolithic cartridge library system and a corresponding plurality of drive elements associated with said library system. Thus, each drive element has associated therewith a number of object storage locations within the library system which contains media of a form and content that matches the drive element. The removable media management system maps the correspondence between object storage location, media type, designated drive element in a manner such that the single library is partitioned into subsets for the user, i.e., the removable media management system provides the capability to define subsets of media types which have consistent mechanical and electrical characteristics, but can vary in data management attributes. This enables the user to transition to another media on an incremental basis, since a single drive element can be added to the library and associated media added as needed without displacing the embedded base (independent of vendor) of installed media handling processes or software or equipment or requiring significant modification to these.
Abstract:
Data storage elements that present uniform external dimensions but contain media of varying types and characteristics provide variable data storage and/or recording characteristics. To differentiate between the various media that can be used within the common form factor, each data storage element is equipped with a leader block, the tape threading slot of which is uniquely dimensioned to correspond to the media contained within the data storage element.
Abstract:
The data recording system writes data on both sides of a two sided magnetic recording tape, in directions of magnetization that are angular displaced with respect to each other, to reduce the effects caused by contact recording and magnetic print through. The media used for the magnetic tape consists of a standard mylar substrate to which a coating of magnetic recording materials is applied, on both sides thereof. In order to reduce the effect of magnetic print through and contact recording, the particles or films that are applied to both sides of the substrate are oriented in differing magnetic orientations that are angularly displaced with respect to each other and two sets of read/write heads are used. The read/write heads can be oriented to produce magnetic fields on one side of the magnetic tape that are angularly displaced with respect to the magnetic fields created on the other side of the magnetic tape. In one embodiment, the azimuth angles of the two read/write heads are selected to be angularly displaced with respect to each other in two dimensions, coplanar with the recording surface of the magnetic tape.
Abstract:
The solid state memory device consists of a circuit board based system which is mounted in a 3480 type magnetic tape cartridge form factor housing to make this media physically compatible with the 3480 type magnetic tape cartridges. The interconnection of the solid state memory device with the read/write device is by an optical connections which transfer data between the solid state memory device and the associated read/write device. A plurality of batteries in the solid state memory device provide power for the memory retention capability required of the volatile solid state memory devices. The batteries are recharged by the use of a pair of power rails that are incorporated into the exterior housing of the 3480 form factor cartridge. Thus, the associated read/write device applies power to the solid state memory via these power rails when the 3480 form factor cartridge is placed in the associated read/write device. Likewise, an associated manual or automated cartridge storage system supplies power when the cartridge is offline, in storage.
Abstract:
In one embodiment, an apparatus for a remote monitoring device is disclosed. The apparatus includes a casing to fit at least one of a storage location for storage media and handling mechanisms for the storage media, the storage location and the handling mechanisms being part of a media storage library, one or more monitoring devices within the casing to obtain from the media storage library at least one of environmental measurements and images of components in the media storage library, and a communication transmitter within the casing and communicatively coupled to the one or more monitoring devices to transmit at least one of data signals representing the at least one of environmental measurements and images of the components in the media storage library. Other embodiments are also disclosed.
Abstract:
A method, apparatus and computer program are disclosed for managing the distribution of optical power to a plurality of optical data devices. The devices can be data storage drives, data replicators, fast optical search devices, or other components that use optical or laser power for their operation. A power management system provides the increased flexibility of monitoring and redirecting optical power (e.g., to provide higher or lower power on demand), which increases the fault-tolerance and performance (e.g., through higher data transfer rates) of a data management system.