International Business Machines Corporation

Cleversafe, Inc.

Sanjaya Kumar

Bart Richard Cilfone

Patrick Aaron Tamborski

Alan M Frazier

Steve Hoffman

Manish Motwani

Jason K Resch

Andrew D Baptist

Thomas Franklin Shirley, Jr

Thomas Darrel Cocagne

Sebastien Vas

Andrew George Peake

Bart Richard Clifone

Dusty Hendrickson

Ryan J Attard

Eric Tashakkor

A computing device includes an interface configured to interface and communicate with a communication system, a memory that stores operational instructions, and processing circuitry operably coupled to the interface and to the memory that is configured to execute the operational instructions to perform various operations. The computing device monitors a current state of a distributed storage and task processing network (DSTN) management unit by periodically collecting metadata that is compared to a previously recognized similar state. The computing device facilitates returning a resolution to the DSTN management unit to modify the current state using corrective actions and the DSTN management unit is configured to automatically execute the resolution or to record the resolution. Recorded resolutions are later passed to operators assigned to the DSN.

Automatic intervention of global coordinator

A distributed storage network (DSN) processes storage unit maintenance tasks on multiple tiers within the DSN. A master storage unit coordinates pending maintenance tasks when a DSN management unit, originally processing the pending maintenance tasks, changes its status to offline. The method includes the master storage unit aggregating pending maintenance tasks from corresponding DSN storage units into an ordered list of maintenance tasks, facilitating, based on the ordered list of maintenance tasks, coordination of a next maintenance task with a corresponding storage unit and directing execution of the next maintenance task by the corresponding storage unit.

Multi-tier coordination of destructive actions

A multi-system dispersed storage network (DSN) comprises a first DSN system that includes a first plurality of storage units, a first plurality of dispersed storage (DS) processing units and a first set of management units and a second DSN system that includes a second plurality of storage units, a second plurality of DS processing units and a second set of management units. The first set of management units manages a first set of configuration data of the first DSN system. A first management unit of the second set of management units, when, in a first mode, manages at least a first configuration data of the first set of configuration data, in a second mode, manages at least a first configuration data of the second set of configuration data, and in a third mode, manages at least the first configuration data of the first and second sets of configuration data.

Isolation of management data for security and operational advantages

A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method begins by gathering, at a DSN management unit, an abstracted DSN node hardware configuration and associated node health information for a plurality of DSN nodes residing in the DSN. The method continues by generating a graphical display indicating a state and a presence of the plurality of DSN nodes and associated hardware. The method continues by performing, at the DSN management unit, specific remediating actions on the plurality of DSN nodes based on the state and presence of the plurality of DSN nodes and associated hardware.

Automatic remediation of distributed storage system node components through visualization

A method for coordinating management of operation risks in a distributed storage network (DSN) that includes multiple distributed computing systems including DSN memories begins with a global coordinating unit receiving messages including metadata from managing units associated with the multiple distributed computing systems. The method continues with the global coordinating unit determining, based on the metadata, that storage units in one or more of the distributed computing systems are executing or planning to execute an operation that could result in data loss or data outage. The method continues with the global coordinating unit transmitting an alert, including a command to halt the operation at the affected distributed computing systems.

Global coordination of in-progress operation risks for multiple distributed storage network memories

A method begins by determining, by a local management unit of a first locally operated dispersed storage network (DSN) memory of a DSN, a DSN memory issue, where the DSN includes a plurality of locally operated DSN memories and at least one global DSN management unit, and where the plurality of locally operated DSN memories includes the first locally operated DSN memory. The method continues by determining whether the DSN issue is a global DSN issue or a local DSN issue. When the DSN issue is the global DSN issue, the method continues by determining whether the local management unit is configured as a DSN global management unit. When the local management unit is not configured as the global DSN management unit, the method continues by generating DSN operational issue information based on the DSN memory issue and sending the DSN operational issue information to the global DSN management unit.

Catastrophic data loss prevention by global coordinator

A method includes delegating, by a managing unit of a dispersed storage network (DSN), authority to configure a sub-portion of at least a portion of the DSN managed by the managing unit to a designated entity according to one or more configuration constraints. The managing unit manages parent configuration data that contains a compilation of configuration changes made to the at least a portion of the DSN. The method further includes managing, by the designated entity, child configuration data that includes a compilation of configuration changes made to the sub-portion of the at least a portion of the DSN. The method further includes, when resolution of the child configuration data and the parent configuration data is triggered, determining whether the child configuration data is formatted in a manner consistent with formatting of the parent configuration data and, if so, incorporating the child configuration data into the parent configuration data.

Delegating dispersed storage network configuration capabilities while preserving ownership constraints

A storage unit (SU) in a dispersed storage network (DSN) coordinates with affiliated dispersed storage units (SUs) to designate a leader SU among the plurality of SUs and when the SU is designated the leader, receives management information that is associated with the affiliated SUs from at least some of the affiliated SUs. The SU processes the management information from the at least some of the affiliated SUs to determine whether at least one of the affiliated SUs is offline; and based on a determination that the at least one of the SUs of the affiliated SUs is offline, transmits the management information for the affiliated SUs to one or more administrators associated with the DSN.

Peer to peer health monitoring of dispersed storage units in a distributed storage network

A method begins by obtaining dispersed storage network (DSN) operational issue information concerning a DSN memory issue in a first locally operated DSN memory of a plurality of locally operated DSN memories. The method continues with determining whether the DSN memory issue is regarding a local DSN issue or a global DSN issue. When the DSN memory issue is the global DSN issue, the method continues with determining a corrective action in response to the DSN memory issue and determining whether the global DSN management unit is configured for automatic correction of the DSN memory issue. When the global DSN management unit is configured for automatic correction of the DSN memory issue in the first locally operated DSN memory of the plurality of locally operated DSN memories, the method continues with executing the corrective action in the first locally operated DSN memory.

A method includes generating an entry for inclusion in a configuration queue regarding a configuration submission regarding DSN managed by a managing unit that uses a manager's configuration database stored in a first database. The method further includes updating a first version of the configuration queue stored in first database and a second version of the configuration queue stored in a manager's vault to include the entry. When the manager's configuration database requires restoring, the method further includes copying a backup version of the manager's configuration database to the first database to create an initially restored manager's configuration database and establishing an association between the managing unit and the initially restored manager's configuration database. When associated, the method further includes accessing the second version, identifying configuration changes not included in the initially restored manager's configuration database, and updating the initially restored manager's configuration database to include the identified configuration changes.

Mechanism for representing system configuration changes as a series of objects writable to an object storage container

A method for execution by a dispersed storage and task (DST) processing unit includes obtaining distributed storage and task network (DSTN) address range information for each memory device of a set of memory devices associated with a storage unit targeted for an upgrade; obtaining a list of slice names associated with selected slices stored in each memory device of the storage unit; retrieving the selected slices associated with the list of slice names; generating an integrity check value for the selected slices; storing one or more of: the integrity check value, the selected slices, or the list of slice names as original integrity information in a memory; and enabling an upgrade sequence of the DST execution unit.

Upgrading devices in a dispersed storage network

A method of managing devices in a dispersed data storage network is disclosed. A device list is maintained including entries for every device in the dispersed data storage network. Each entry lists a public key, a network address, and hardware identifier for the corresponding device. On startup each device sends a request to join the network. The request includes the device's public key, network address, and hardware identifier. The request is compared with the device list, and, based on the comparison, and, in some cases, administrator action, the request is granted or denied.

Management of network devices within a dispersed data storage network

A method of upgrading software components within a dispersed data storage network is disclosed. A list of identifiers corresponding to devices within the dispersed data storage network is assembled. Each member of the list is assigned to an upgrade set based on the devices that are reachable by the vaults associated with the device.

Growing community of inventors

South Elgin, IL, United States of America

Sanjaya Kumar