International Business Machines Corporation

Netapp, Inc.

James Philip Wittig

Claudia C Alimpich

Joan Stagaman Goddard

Minh Trong Vo

Deborah Elizabeth Neuhard

Rachel Youngran Yang

Luana Linda Vigil

Benjamin Nelson Jeffcoat

Jared Cantwell

Mark David Olson

Gerald Donald Boldt

Calvin Larry Doescher

Cheryl Steinmeyer

Daniel David McCarthy

Austino Nicholas Longo

Christopher Cason

Joe Roback

Forrest Trimbell

William Minckler

Claudia C Almpich

Systems and methods for quality of service management are provided. According to one embodiment, a non-transitory computer-readable medium comprises instructions that when executed by the processing resource cause the processing resource to collect, from a plurality of volumes on a per-volume basis, one or more real-time performance metrics for one or more compute processes executing on the one or more computer systems, generate an inertial parameter for one or more volumes in the plurality of volumes, and generate an instruction that cause a processor to use the real-time performance metrics and the inertial parameter to determine whether to transfer responsibility for a compute process on a first storage server node to a second storage server node.

Dynamic load balancing by analyzing performance of volume to quality of service

A technique maintains multiple copies of data served by storage nodes of a cluster during upgrade of a storage node to ensure continuous protection of the data served by the nodes. The data is logically organized as one or more volumes on storage devices of the cluster and includes metadata that describe the data of each volume. A data protection system may be configured to maintain two copies of the data in the cluster during upgrade to a storage node that is assigned to host one of the copies of the data but that is taken offline during the upgrade. As a result, a slice service of the node may become unavailable during the upgrade. In response to the unavailability of the slice service, the technique redirects replicated data targeted to the slice service to a standby slice service according to a degraded redundant metadata (DRuM) service of the cluster.

Degraded redundant metadata, DRuM, technique

A technique is configured to maintain multiple copies of data served by storage nodes of a cluster during upgrade of a storage node to ensure continuous protection of the data served by the nodes. The data is logically organized as one or more volumes on storage devices of the cluster and includes metadata that describe the data of each volume. A data protection system may be configured to maintain at least two copies of the data in the cluster during upgrade to a storage node that is assigned to host one of the copies of the data but that is taken offline during the upgrade. As a result, an original slice service of the node may be rendered unavailable during the upgrade. In response, the technique redirects replicated data targeted to the original slice service to a standby pool of slice services in accordance with a degraded redundant metadata service of the cluster. In the event the standby slice service itself subsequently becomes unavailable, another standby slice service from the standby pool is activated to receive the subsequent data. In this manner, cascading failure of secondary slice slices is handled.

Standby copies withstand cascading fails

Disclosed are systems, computer-readable mediums, and methods for receiving a start replication message to replicate a source volume to a replicated volume. A source system forwards I/O requests to the replica server. A data structure associated with the replicated volume is initialized. A write request is received from the source system. The write data is written to the replicated volume and the data structure is updated. Source metadata associated with the source volume is received. The source metadata is compared with prior metadata associated with a prior point-in-time image of the source volume to determine blocks of data that have changed since the prior point-in-time image of the source volume. A first block is determined to not be retrieved based upon the data structure. A second block is determined to be retrieved based upon the data structure. The second block is received and written to the replicated volume.

Data syncing in a distributed system

Disclosed is an application program for revising a list of textual values, wherein the application is controlled by a computer system having at least a visual operator interface, an operating system for controlling the operation of program applications within the computer system, and memory for storing the application program. The application includes means for selecting a first window showing a user list box displaying a plurality of textual values. A first pushbutton may be selected from the first window to cause the display of a second window in which the user may enter a new textual value that is different from the plurality of textual values displayed in the first window. Another pushbutton in the second window may be used to display the first window with the textual values displayed including the new textual value. A pushbutton from the first window may be used to display a second value identical to the first textual value. Another pushbutton may then cause the display of the first window with the first and textual values displayed. An additional pushbutton from the first window may then be used to display a second window including a selected textual value to modify.

Graphical interface method, apparatus and application for creating and modifying a multiple-value text list

A data processing controlled display system for the interactive display and control of a hierarchical tree of elements or objects which are selectable to display detailed views of the attributes of the child objects of the selected parent object. The invention is directed to parent objects of which the child objects are different object types. Upon the selection of such a parent object, its child objects are displayed in a plurality of separate screen regions, each respectively displaying the attributes of one of said different types of child objects. The different types of child objects may come from different levels in the hierarchy. The invention is also applicable to the hierarchical trees used in object oriented programming and particularly to situations in object oriented programming where the selected parent object is of a container class.

Data processor controlled display interface with tree hierarchy of

In a data processor controlled display system interface for controlling operations, there is provided an error message monitoring and logging system which includes an indicator having a normal state and an attention state together with means for switching said indicator to the attention state upon receipt of a new error message. There are means for enabling a user to designate or click on this indicator and means responsive to said designation for displaying a log including at least said new error message. There are also means responsive to a subsequent user designation or clicking on of the indicator for removing said log and means for restoring said indicator to the normal state after said log is displayed.

Data processor controlled display interface for control of operations

A data processing controlled display system for the interactive display and control of operations through a displayed tree having a plurality of items to be acted upon, wherein a parent item at one level has at least one child item at the next lower level, and means for enabling a modification of at least one property of all of the child items by enabling a designation of the modification of the property at the parent level without the modification of any property of the parent item. The system also has means for enabling the modification of the properties of at least one of the child items independently of any designation of modification made at the parent level.

Data processor controlled display with a tree of items with modification

A data processing controlled display system for the interactive display and control of a hierarchical tree of objects. The tree comprises a plurality of selectable objects arranged in a hierarchy, each of said objects being associated with a data entity and at least one of said objects having a plurality of virtual child objects, each of said virtual child objects being without an associated data entity.

Data processor controlled display system with a tree hierarchy of

The invention is carried out in the following environment. The computer system has at least a visual operator interface, an operating system for operating applications within the computer system, and memory for storing at least part, preferably all, of an application. The present invention is of an application, apparatus, and method for selecting multiple container objects whose contents are to be viewed, and displaying in one window the contents of all of the selected container objects, as opposed to displaying one window for objects associated with each selected container object.

Graphical interface method, apparatus and application for opening window

A method apparatus and application is provided for displaying wells containing objects related to objects initially displayed. The computer system has at least a visual operator interface, an operating system for operating applications within the computer system, and memory for storing the application. A new display control function called Expand to Wells is provided. The Expand to Wells function opens all the wells for any object on which it is dropped. The function applies to all objects shown. A separate one is not required for each well.

Expand to wells function in graphical user interface system

A graphical user interface may used to construct a list from pre-defined and user-defined printer values. Predefined values may be added or removed through a dialog box by selecting or deselecting values. New user-defined values may added by filling in a value in the add value dialog. An existing value may be modified by selecting a modify push-button. In response to selecting the modify push-button, a value may be edited in a modify value dialog. Adding, removing, modifying, and deleting printer values may be performed by user interaction with various push-buttons and dialog boxes.

Graphical interface method, apparatus and application for creating a

The invention is carried out in the following environment. The computer system has at least a visual operator interface, an operating system for operating applications within the computer system, and memory for storing at least part, preferably all, of an application. The present invention provides a method, apparatus, and application for constructing in a graphical user interface a list of values from pre-defined and user-defined values. Also disclosed is a means for adding, modifying, and deleting values. Additionally disclosed is a means for copying selected values from one entry to another entry in the list of values.

Application and method for creating a list from pre-defined and user

An application, method and apparatus for revision of attributes of selected objects as controlled by a computer system. The computer system has at least a visual operator interface, an operating system for operating applications within the computer system, and memory for storing the application therein. Selected objects, such as other applications, parts of applications such as cells in a spread sheet, or real objects such as printers, are designated for selected attribute revision. A global change operation for all of the designated objects having properties to be revised is selected. The attributes are revised as desired and the revised attributes are propagated to the designated objects. Also disclosed is a method, apparatus and application for indicating the desired revisions to the attributes using a model object. The model object method, apparatus and application is an alternative embodiment of the invention.

Method, apparatus and application for object selective but global

An application, method and apparatus for revision of a title of a window containing objects as controlled by a computer system. The computer system has at least a visual operator interface, an operating system for operating applications within the computer system, and memory for storing the application therein. A title is generated for the window containing a list of all of the parent objects, either in the window or represented by child objects in the window. The title is revised dynamically to correspond with modifications in the parent objects. The title revision is done while the window is displayed. Also a means for retaining in the title the name of a parent object even if the parent object becomes temporarily unavailable while the window is displayed. Also a means for saving the revised title so that when the window is opened again in the future, the objects are displayed. Additionally a means for closing the window if all of the objects are deleted.

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Boulder, CO, United States of America

James Philip Wittig