摘要:
The disc drive housing encloses a spindle motor carrying a disc having a data surface. An actuator assembly includes an actuator arm carrying a head. The housing includes a first surface portion adjacent to the data surface of the disc. The housing also includes a plurality of surface portions that define a recess, which allows the actuator arm to move over the data surface of the disc. The plurality of surface portions include a sloped surface portion sloping away from the data surface and preventing wind generated by the disc rotating about an axis from separating from the sloped surface portion. Alternatively, a disc drive includes a housing that defines a recess. The housing encloses a disc mounted on a spindle motor that rotates the disc about an axis and thereby generates wind within the housing. An upstream surface portion and a downstream surface portion of the housing both face toward a data surface of the disc. A discontinuity, such as a step, between the upstream surface portion and the downstream surface portion causes a wind recirculation region within the recess. The disc drive also includes an actuator arm that carries a head, which the recess allows to move over the data surface of the disc. An actuator limiting device prevents the actuator arm from entering the wind recirculation region.
摘要:
Method and apparatus for protecting a data storage device from fluid-borne contaminants. The device includes a housing in which a rotatable disc is supported, the disc having a data recording surface and an outermost perimeter. A filter assembly includes a first filter adjacent to the data recording surface and a second filter disposed beyond the outermost perimeter of the disc. During disc rotation, fluidic currents are generated and impinge a leading edge guide surface of the first filter. A first portion of the currents passes into a gap between the first filter and the data recording surface. A second portion of the currents passes along the leading edge guide surface to the second filter. The first filter is preferably characterized as a chemical adsorbent filter which adsorbs vapor phase (gaseous) contaminants, and the second filter is preferably characterized as a pass-through recirculation filter which captures particulate contaminants.
摘要:
A disc drive includes a housing enclosing a spindle motor that is able to spin a disc. A filter within the housing is positioned so that a filter stream of moving gas created by a spinning motion of the disc flows through the filter. Additionally, a flow divider is secured to a portion of the housing and positioned within the filter stream upstream of the filter, splitting the filter stream into a first branch and a second branch. Both branches flow through the filter.
摘要:
In liquid disk drives, liquid bearing materials based on hydrocarbon liquids, halogenated liquids and mixtures thereof are used at the head-disk interface. Additives such as antioxidants and boundary layer lubricants may be incorporated to enhance oxidative stability and lubricity. The liquid bearing materials have relatively low viscosities and non-Newtonian flow characteristics so as to reduce drag at the read/write head compared with Newtonian liquid bearing materials.
摘要:
A data storage library is described that protects against a malware attack by providing a scheduled write window of time where archive data can be written to tape cartridges in the tape library on behalf of a client. At times outside of the write window, the tape library is disabled from writing any archive data to any of the tape cartridges in the tape library. Accordingly, the tape library is protected from a malicious entity attempting to download malware to tape cartridges in the tape library outside of the designated write windows. The tape library is configured to provide or otherwise read archived data from a tape cartridge both in the write window and outside of the write window.
摘要:
A method for recovering data from a failed tape cartridge is presented. The reliability of a tape cartridge is assessed via the number of read errors encountered. If the number or read errors is excessive, the tape cartridge is deemed unreliable and the tape cartridge is restricted from storing anymore data. A search is performed to look for duplicate data and if found a copy of the duplicate data is stored to a replacement tape cartridge. The replacement tape cartridge assumes all identity of the original failed tape cartridge.
摘要:
A storage system is provided having at least one storage unit, the storage unit including an electrical power source, a communication source and a cover that defines, at least in part an interior space. The storage system operates with a media blade that comprises a plurality of data storage elements, said media blade moveable in a drawer like motion though a cooperating opening in said cover. The storage system further includes a motion accommodating conductor apparatus connecting said plurality of data storage elements to said electrical power source and said communication source such that power from said electrical power source and communication from said communication source may be provided to said media blade without interruption when said media blade is moved in said drawer like motion outward from at least partially within said interior space.
摘要:
Described are a method and apparatus that monitor tape drive health for tape drives in a tape library. The tape library generally contains a data base that is adapted to maintain functional status records for interactions that occur when a tape drive physically engages a tape cartridge. More specifically, errors associated with tape drive and tape cartridge interactions can be stored in the data base and monitored to make determinations relative to problems encountered by a specific tape drive.
摘要:
A data storage library is described including a plurality of tape cartridges wherein each of the tape cartridges possesses an auxiliary radio frequency memory device in which auxiliary digital data is stored. The library also includes at least one drive disposed substantially within the library capable of transferring user data to and from one of the tapes. The library further includes at least one auxiliary radio frequency memory device reader that capable of reading the auxiliary digital data and transmitting the auxiliary digital data to at least one designated location, the reader is independent of the at least one drive.
摘要:
A storage system is provided having at least one storage unit, the storage unit including an electrical power source, a communication source and a cover that defines, at least in part an interior space. The storage system operates with a media blade that comprises a plurality of data storage elements, said media blade moveable in a drawer like motion though a cooperating opening in said cover. The storage system further includes a motion accommodating conductor apparatus connecting said plurality of data storage elements to said electrical power source and said communication source such that power from said electrical power source and communication from said communication source may be provided to said media blade without interruption when said media blade is moved in said drawer like motion outward from at least partially within said interior space.