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公开(公告)号：CA2757433C
公开(公告)日：2018-05-29
申请号：CA2757433
申请日：2010-03-11
Applicant: IBM
Inventor： BRUME SHAWN OWEN , JANGABA FAHNMUSA CHRISTIAN , KNIBLOE CHRISTINE RENEE , SWANSON DAVID LEE
IPC: G06F3/06
Abstract: According to one embodiment, a method for storing data on a magnetic tape comprises receiving data from two different hosts and simultaneously writing the data from the hosts to the magnetic tape using multi-ple transducers. In another approach, a method for stor-ing data on a magnetic tape comprises receiving requests to establish a concurrent reservation from multiple hosts and allocating a unique stripe in a wrap to each of the hosts that sent the requests, wherein the wrap is a collec-tion of data tracks to be written simultaneously in one di-rection of tape movement by multiple transducers of a tape head, and the wrap is logically divided into the stripes. Also, the method includes receiving data from the hosts and simultaneously writing the data from the hosts to the magnetic tape using the multiple transducers. Oth-er systems and methods concerning storing data on mag-netic tapes are described as well.
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公开(公告)号：DE112010003394T5
公开(公告)日：2012-06-14
申请号：DE112010003394
申请日：2010-08-18
Applicant: IBM
Inventor： BUTT KEVIN DALE , BRUME SHAWN OWEN , NAKAYAMA HIROKAZU
Abstract: Schutz einer wiederbeschreibbaren Nicht-WORM-Datenspeicherkassette gegen das Überschreiben von Daten wird durch ein Datenspeicherlaufwerk bereitgestellt, das Prozeduren zum Schutz von Kassettendaten gegen Überschreiben unabhängig von und ungeachtet der Abwesenheit von Kassettensteuerungen bezüglich des Schutzes von Daten gegen Überschreiben durchführt. Für die Nicht-WORM-Kassette reagiert das Laufwerk auf einen Befehl zur Erlaubnis des Überschreibens von Daten dahingehend, dass einem unmittelbar nachfolgenden Befehl des Schreibtyps erlaubt wird, auch dann auf die Kassette zu schreiben, wenn der Schreibbefehl vorhandene Daten überschreibt. Die Prozeduren zum Schutz gegen Überschreiben und die Prozeduren zum Überschreiben von Daten können für das Datenspeicherlaufwerk eingerichtet und aktiviert werden.
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公开(公告)号：GB2485074A
公开(公告)日：2012-05-02
申请号：GB201119042
申请日：2010-08-19
Applicant: IBM
Inventor： AHMAD SAID ABDULLAH , BRUME SHAWN OWEN
IPC: G06F3/06
Abstract: In one embodiment, an extended data storage system employs a first data storage and an extended data storage. A first level of metadata is established with respect to data from the using entity, the first level of metadata is provided in the first data storage. The data from the using entity is stored in the extended data storage. A second level of metadata at least describing the data as stored in the extended data storage is also established, wherein the second level of metadata associated with the first level of metadata for the stored data. The first level of metadata is made accessible to the using entity at the first data storage; and the second level of metadata is made unavailable to the using entity. Thus, the data is stored in the extended data storage and a small amount of metadata is stored in the first data storage.
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Patent Agency Ranking
公开(公告)号：DE112010003460T5
公开(公告)日：2012-06-14
申请号：DE112010003460
申请日：2010-08-19
Applicant: IBM
Inventor： AHMAD SAID ABDULLAH , BRUME SHAWN OWEN
Abstract: In einer Ausführungsform wendet ein erweitertes Datenspeichersystem einen ersten Datenspeicher und einen erweiterten Datenspeicher an. Eine erste Ebene von Metadaten wird hergestellt in Bezug auf Daten von der anwendenden Einheit, wobei die erste Ebene von Metadaten in dem ersten Datenspeicher bereitgestellt wird. Die Daten von der anwendenden Einheit werden in dem erweiterten Datenspeicher gespeichert. Eine zweite Ebene von Metadaten, welche zumindest die Daten so wie in dem erweiterten Datenspeicher gespeichert beschreiben, wird auch hergestellt, wobei die zweite Ebene von Metadaten mit der ersten Ebene von Metadaten für die gespeicherten Daten assoziiert ist. Die erste Ebene von Metadaten wird für die anwendende Einheit bei der ersten Datenspeicherung zugänglich gemacht; und die zweite Ebene von Metadaten wird für die anwendende Einheit nicht verfügbar gemacht. So werden die Daten in dem erweiterten Datenspeicher gespeichert und eine kleine Menge von Metadaten wird in dem ersten Datenspeicher gespeichert.
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公开(公告)号：CA2757433A1
公开(公告)日：2010-11-25
申请号：CA2757433
申请日：2010-03-11
Applicant: IBM
Inventor： BRUME SHAWN OWEN , JANGABA FAHNMUSA CHRISTIAN , KNIBLOE CHRISTINE RENEE , SWANSON DAVID LEE
IPC: G06F3/06
Abstract: According to one embodiment, a method for storing data on a magnetic tape comprises receiving data from two different hosts and simultaneously writing the data from the hosts to the magnetic tape using multiple transducers. In another approach, a method for storing data on a magnetic tape comprises receiving requests to establish a concurrent reservation from multiple hosts and allocating a unique stripe in a wrap to each of the hosts that sent the requests, wherein the wrap is a collection of data tracks to be written simultaneously in one direction of tape movement by multiple transducers of a tape head, and the wrap is logically divided into the stripes. Also, the method includes receiving data from the hosts and simultaneously writing the data from the hosts to the magnetic tape using the multiple transducers. Other systems and methods concerning storing data on magnetic tapes are described as well.
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公开(公告)号：GB2485074B
公开(公告)日：2016-03-09
申请号：GB201119042
申请日：2010-08-19
Applicant: IBM
Inventor： AHMAD SAID ABDULLAH , BRUME SHAWN OWEN
IPC: G06F3/06
Abstract: In one embodiment, an extended data storage system employs a first data storage and an extended data storage. A first level of metadata is established with respect to data from the using entity, the first level of metadata is provided in the first data storage. The data from the using entity is stored in the extended data storage. A second level of metadata at least describing the data as stored in the extended data storage is also established, wherein the second level of metadata associated with the first level of metadata for the stored data. The first level of metadata is made accessible to the using entity at the first data storage; and the second level of metadata is made unavailable to the using entity. Thus, the data is stored in the extended data storage and a small amount of metadata is stored in the first data storage.
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公开(公告)号：GB2485292B
公开(公告)日：2015-10-07
申请号：GB201200160
申请日：2010-08-18
Applicant: IBM
Inventor： BUTT KEVIN DALE , NAKAYAMA HIROKAZU , BRUME SHAWN OWEN
Abstract: Protection against data overwrite of a rewritable non-WORM data storage cartridge is provided by a data storage drive operating cartridge data overwrite protection procedures independent of, or not withstanding, the absence of cartridge controls relating to data overwrite protection. Also for the non-WORM cartridge, the drive responds to an allow data overwrite command to allow an immediately subsequent write type command to write to the cartridge even if the write command overwrites existing data. The overwrite protection procedures and data overwrite procedures may be configured and enabled for the data storage drive.
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公开(公告)号：GB2485292A
公开(公告)日：2012-05-09
申请号：GB201200160
申请日：2010-08-18
Applicant: IBM
Inventor： BUTT KEVIN DALE , NAKAYAMA HIROKAZU , BRUME SHAWN OWEN
Abstract: Protection against data overwrite of a rewritable non-WORM data storage cartridge is provided by a data storage drive operating cartridge data overwrite protection procedures independent of, or not withstanding, the absence of cartridge controls relating to data overwrite protection. Also for the non-WORM cartridge, the drive responds to an allow data overwrite command to allow an immediately subsequent write type command to write to the cartridge even if the write command overwrites existing data. The overwrite protection procedures and data overwrite procedures may be configured and enabled for the data storage drive.
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