International Business Machines Corporation

William J Rooney

Harry M Yudenfriend

Gregory E McBride

Dale Francis Riedy, Jr

David Randall Blea

Reinhard Theodor Buendgen

James A O'Connor

Carol Santich Mellgren

Kenneth J Oakes

Scott M Carlson

Leslie W Wyman

John S Trotter

Tan Lu

Greg A Dyck

Tabor R Powelson

Giles R Frazier

Scott Brady Compton

Tariq Hanif

K Paul Muller

Gregory Francis Pfister

Thomas M Brey

Peter Bergersen Yocom

John Jay Wolfgang

Amy N Blea

Khary J Alexander

Craig Raymond Walters

Tiberiu (Jim) Suto

Tri M Hoang

Jeb R Linton

Jeffrey Alan Frey

George Conerly Wilson

Sean M Swehla

Mark S Farrell

Theresa Mary Brown

Peter Grimm Sutton

Brent Cameron Beardsley

Jeffrey Paul Kubala

Daniel Gene Eisenhauer

Elpida Tzortzatos

Utz Bacher

John C Dayka

Patrick Joseph Callaghan

Robert J Dugan

Eugene P Hefferon

Thomas B Mathias

Peter G Spera

Kurt Norman Schroeder

Stefan Usenbinz

Malcolm Scott Ware

Marcel Mitran

Wei T Huang

Warren Keith Stanley

Susan Kay Candelaria

David Harold Surman

Nicolas Marc Clayton

David S Wolpert

John Richard Paveza

Guillermo Jesus Silva

Daniel J Kearney

Lisa Joan Gundy

Emmanuel Yashchin

Carol B Hernandez

Anthony J Ciaravella

Gary M King

Scott J Hadderman

Joran S C Siu

Hans-Helge Lehmann

Damian Trujillo

Barbara J Bryant

Richard Cwiakala

Corey G Smeaton

Robert J Gallagher

Michael J Shannon

Francis E Johnson

Pamela A Schull

Bengt E Larsson

Richard A Bibolet

Ulrich Hild

Providing fine granularity read access to generational copies of safeguarded copy data. In some instances, a fine granularity read access to generational copies of safeguarded copy data includes the ability to use a generation ID to determine the exact generation copy that contains relevant enterprise related data that must be recovered and/or utilized. Additionally, the fine granularity read access is done in a manner that does not require a restore of the relevant enterprise related data to a recovery volume and that does not compromise other generation copies.

Fine granularity read access to generational safeguarded copy data

Ensuring that enterprise data that has potentially become corrupted is recoverable and usable by creating safeguarded copy volumes of the enterprise data. One important aspect of any corruption detection scheme is to determine when the data has become corrupted and locate the last known uncorrupted copy of the data as quickly as possible. Once this set of data is identified, the restoration process can begin with that data, and subsequent logged transactions can be reapplied if possible, which brings the data to the most recent and uncorrupted version.

Generational access to safeguarded copy source volumes

A computer-implemented method according to one approach includes identifying an inability to access a first storage volume during a first data replication session, creating a second data replication session including the first storage volume, and removing the first storage volume from the first data replication session.

Managing data replication sessions in response to an inability to access a storage volume

Provided is a method for correcting untrusted data and avoiding logical device swapping for at least one logical subsystem of at least one computer system. A processor may monitor a primary storage for one or more errors that indicate untrusted data on the primary storage. An error indicating that a data set on the primary storage is an untrusted data set may be identified. In response to the error being identified, a corresponding uncompromised version of the data set may be read from a secondary storage. The corresponding uncompromised version of the data set may be written over the untrusted data set on the primary storage.

Automatic data healing by I/O

Provided is a method for correcting pinned data in a primary storage. A primary storage controller may detect a pinned data set on a primary storage. In response to detecting the pinned data set, the primary storage controller may instruct a secondary storage controller to transmit a copy of the pinned data set to the primary storage controller. The copy of the pinned data set may be stored in a secondary storage that is communicatively coupled to the secondary storage controller. The secondary storage may include a synchronous copy of the primary storage. The primary storage controller may receive the copy of the pinned data set from the secondary storage controller. The primary storage controller may also write the copy of the pinned data set over the pinned data set on the primary storage.

Automatic data healing using a storage controller

A method, computer system, and a computer program product for soft fencing is provided. The present invention may include identifying a logical device swap occurred. The present invention may also include, in response to a logical device swap, creating a soft fence command. The present invention may then include issuing the created soft fence command.

Enhanced soft fence of devices

Provided are a computer program product, system, and method for after swapping from a first storage to a second storage, mirroring data from the second storage to the first storage for data in the first storage that experienced data errors. A swap operation redirects host Input/Output (I/O) requests to data from the first server to the second server in response to a health condition at the first server. A determination is made of data errors with respect to data in the first storage that experienced data errors. The second server is instructed to mirror data in the second storage to the first server including data for the data in the first storage that experienced the data errors to store in the first storage in response to determining that the first server is available for the data mirroring operations.

After swapping from a first storage to a second storage, mirroring data from the second storage to the first storage for data in the first storage that experienced data errors

A system and method of implementing a firm channel in a computer system are provided. The method including identifying at least one of a channel and a channel path ID (CHPID) as a first firm channel, automatically defining a logical path between a first device and a second device using the first firm channel, and storing the logical path in a configuration file of the computer system, wherein the logical path is accessible at system initialization.

Firm channel paths

In one embodiment, I/O operations may be swapped from an original storage unit to a replacement storage unit in a manner which can reduce or eliminate delays caused by copying of data from the original storage unit to the replacement storage unit. A point-in-time snap copy relationship between the original storage unit and the replacement storage unit of storage locations is established and I/O operations are swapped from the original storage unit to the replacement storage unit. The I/O operations are resumed, accessing the replacement storage unit instead of the original storage unit in the input/output operations issued by the at least one host. Other aspects are described.

Storage unit replacement using point-in-time snap copy

Provided are a computer program product, system, and method for managing health conditions to determine when to restart replication after a swap triggered by a storage health event. A determination is made of a health condition with respect to access to a first storage that triggers a swap operation. The swap operation redirects host Input/Output (I/O) requests to data from a first server to a second server in response to determining the health condition. After the swap operation the I/O requests are directed to the second server and a second storage. The second server is instructed to mirror data in the second storage to the first server to store in the first storage in response to determining that the health condition is resolved.

Managing health conditions to determine when to restart replication after a swap triggered by a storage health event

A computer program product and a computer system for generating and deploying a secure boot image and encrypted client data to a trusted computer system. Embodiments of the present invention disclose deploying a secure boot image and encrypted client data from a client to a trusted computer system. Embodiments of the present invention disclose booting a confidential image on a trusted computer system. Embodiments of the present invention also disclose a process of dumping a confidential image on the trusted computer system.

Booting and dumping a confidential image on a trusted computer system

A methodology for creating and using information identifying what and how software and/or firmware modules are used in computer systems, called functional exploitation data. The functional exploitation data can be used to identify what modules should be updated and how updates should be implemented. The functional exploitation data can also be used to identify other computer systems as candidates for updates based on similarity to computer systems that have reported problems, and propose implementing similar updates on the candidates. Functional exploitation data can also be used to identify under-utilized modules for enhancements or greater advocacy. The functional exploitation data can be implemented in the form of a concatenated string.

Making and using functional exploitation information in performing software or firmware updates

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Hopewell Junction, NY, United States of America

William J Rooney