Abstract: A method can include obtaining catalog data of a catalog. The catalog can include one or more records. The method can further include detecting one or more damaged records among the one or more records and isolating the one or more damaged records. The method can further include identifying one or more undamaged records among the one or more records. The method can further include transferring the one or more undamaged records to a backup catalog. The method can further include obtaining a transfer status of a first undamaged record of the one or more undamaged records. The method can further include obtaining an access request corresponding to the first undamaged record. The method can further include determining, based on the transfer status, a response to the access request and generating, based at least in part on the backup catalog, a restored catalog.

Abstract: Provided are a computer program product, system, and method for using a machine learning module to rank technical solutions to user described technical problems to provide to a user. A solutions database is searched to determine a result set of answer files having keywords related to keywords of a technical problem in a user description. The result set of answer files, the user description of the technical problem, user profile information, and technical specifications of the computing system are provided as input to a machine learning module. The machine learning module outputs ranks of the answer files in the result set. A subset of answer files in the result set is selected based on ranks of the answer files in the result set and returned to the user.

Abstract: Provided are a computer program product, system, and method for managing multiple locks for data set members in a data set index. The data set index has leaf nodes and internal nodes. In response to determining that a current lock is set at a locked node that prevents a grant to a requested lock, a determination is made as to whether there are different first and second descendant nodes from the locked node at a same level of the tree data structure linked to the requested data set member and the locked data set member, respectively. If so, the requested lock for the requested data set member is set at the first descendant node, the current lock is moved to the second descendant node for the locked data set member and the requested lock is granted.

Abstract: Provided are a computer program product, system, and method for using mirror indicators to determine whether to mirror tracks in a data set in a primary volume mirrored to a secondary volume. A table is read. The table is maintained by a primary controller managing the primary volume that includes a mirror indicator for each of a plurality of tracks in at least one data set configured in the primary volume indicating whether a track is to be mirrored to the secondary volume. Record sets are read from a cache of the primary controller for the tracks in primary volume having the mirror indicators in the table indicating that the track is to be mirrored. The write data in the read record sets is applied to tracks in the secondary volume mirroring the tracks in the primary volume.

Abstract: Provided are a computer program product, system, and method for determining when to release a lock from a first task holding the lock to grant to a second task waiting for the lock. A determination is made as to whether a holding of a lock to the resource by a first task satisfies a condition and whether the lock is swappable. The lock is released from the first task and granted to a second task waiting in a queue for the lock in response to determining that the holding of the lock satisfies the condition and that the lock is swappable. The first task is indicated in the queue waiting for the lock in response to granting the lock to the second task.

Abstract: A drain cleaning machine for moving a snake in a drain. The drain cleaning machine includes a rotating shell, a motor, radial drive mechanism, a translate mechanism, and a selection mechanism. The selection mechanism includes an actuating lever moveable between an activated position and a deactivated position, a selection plate moveable between a radial drive position and a translate position, and a push plate. The push plate is moveable in a first direction relative to the selection plate in response to the actuating lever moving to the activated position, and is moveable in a second direction relative to the selection plate in response to the actuating lever moving to the deactivated position. When the selection plate is in the radial drive position and the actuating lever is moved to the activated position, the push plate moves toward the selection plate to switch the radial drive mechanism to an engaged state.

Abstract: A computer-implemented method according to one embodiment includes obtaining, by a first LPAR, first device information about devices that a first LPAR is physically connected to. The first device information is sent by the first LPAR to a storage device for storage therein. Second device information stored on the storage device by a second LPAR is accessed by the first LPAR. The second device information includes information about devices that the second LPAR is physically connected to. The method further includes performing, by the first LPAR, a function using the second device information. A computer program product for device information sharing between a plurality of LPARs according to another embodiment includes a computer readable storage medium having program instructions embodied therewith. The program are instructions readable and/or executable by a first LPAR to cause the first LPAR to perform the foregoing method.

Abstract: A feed mechanism for use with a drain cleaner includes a frame configured to be coupled to the drain cleaner. The frame including a cable passage defining a cable axis. The feed mechanism includes a plurality of rollers including a translatable roller. Each roller defines a roller axis. The translatable roller is moveable between an engaged position and a disengaged position. The feed mechanism includes a mode selection member coupled to the frame and moveable between a first position in which each roller axis is parallel to the cable axis and the plurality of rollers are configured to spin the cable about the cable axis, and a second position in which each roller axis is non-parallel to the cable axis and the plurality of rollers are configured to move the cable in a first direction along the cable axis.

Abstract: Provided are a computer program product, system, and method to remove selected user identifiers to include in an event message based on a context of an event. A determination is made of multiple user identifiers in a group of selected user identifiers for one event name for an event message for an event to schedule. A determination is made of a context of the event to schedule. At least one of the multiple user identifiers that are not included in at least one message with an event initiator that initiated the event to schedule, having a message context matching the determined context of the event to schedule, are removed from the group of selected user identifiers to produce a modified group of selected user identifiers. An event message is generated to transmit to addresses for the modified group of selected user identifiers with information on the event to schedule.

Abstract: A method for tracking actions performed in association with a data set includes identifying multiple sources of historical information describing actions performed on the data set. The method periodically gathers this historical information from the multiple sources and compiles the historical information in a centralized repository. In certain embodiments, the method stores the historical information in the form of individual records associated with the data set. In the event any actions performed on the data set are the result of policies established for the data set, the method determines the policies associated with the actions where possible. The method includes these policies with the historical information in the centralized repository. A corresponding system and computer program product are also disclosed.

Abstract: Described herein are techniques for diagnostic analysis in computational systems. The techniques including a method comprising receiving error documentation related to a system having a plurality of hardware components and a plurality of software components, where the error documentation is received from a user device associated with a user profile having permissions. The method further comprises generating a diagnostic plan including a diagnostic tool based on the error documentation. The method further comprises implementing the diagnostic tool on at least one component selected from a group consisting of: the plurality of hardware components, and the plurality of software components. The method further comprises receiving censored diagnostic output in response to implementing the diagnostic tool, where the censored diagnostic output is censored according to the defined permissions of the user profile.

Abstract: A drain cleaning machine includes a snake inlet tube, a clamping mechanism having a first support member and a second support member. The second support member is movable between a first position in which a first distance is defined between the first support member and the second support member, and a second position in which a second distance is defined between the first support member and the second support member. The clamping mechanism also includes a plurality of collets supported by the first and second support members. The drain cleaning machine also includes a motor switchable between a deactivated state and an activated state in which the motor is configured to rotate the clamping mechanism and an actuating lever moveable between a deactivated position, in which the second support member is in the first position, and an activated position, in which the second support member is in the second position.

Abstract: A method for providing different message information to users based on authorization level is disclosed. In one embodiment, such a method includes detecting an event, such as an error or abnormal termination, in a hardware or software product. The method generates a message in association with the event and determines an authorization level of a user intended to receive the message. In the event the user is associated with a first authorization level, the method includes first content in the message. In the event the user is associated with a second authorization level, the method includes second content in the message. The second content may be more comprehensive than the first content. A corresponding system and computer program product are also disclosed.

Abstract: A method for modifying a configuration of a storage system. The method includes one or more computer processors identifying data received at a logical partition (LPAR) of a storage system, wherein a copy program associated with a process for data mirroring executes within the LPAR. The method further includes determining a first rate based on analyzing a quantity of data received at the LPAR during the process of data mirroring. The method further includes creating a journal file from a set of records within the received data. The method further includes determining a second rate related to migrating the journal file from the LPAR to intermediate storage included in the storage system. The method further includes determining to modify a set of configuration information associated with the process of data mirroring by the storage system based, at least in part, on the first rate and the second rate.

Abstract: Provided are a computer program product, system, and method for using mirror indicators to indicate whether to mirror tracks in a data set in a primary volume mirrored to a secondary volume. A table includes a mirror indicator for each of a plurality of tracks in at least one data set in the primary volume indicating whether a track is to be mirrored to the secondary volume. In response to a write command of write data for one of the tracks in the primary volume, creating a record set in a cache for the primary volume including write data for the track to transfer to the secondary volume in response to the mirror indicator for the track indicating that the track is to be mirrored. The write data in the record set is transferred from the cache to the secondary volume.

Abstract: A method for analyzing data corruption is disclosed. In one embodiment, such a method includes identifying a data set to analyze for data corruption. This data set resides on tracks of a volume. The method further determines, from control information associated with the volume, on which tracks of the volume the data set resides. The method reads content of the data set without opening the data set by performing full-track reads of the tracks. The method further determines an expected format of the content by analyzing the control information. An actual format of the content is compared to the expected format to identify areas of the data set that may be corrupt. A corresponding system and computer program product are also disclosed.

Abstract: A method for limiting I/O access in shared storage systems is disclosed. In one embodiment, such a method includes establishing, for a volume, a list of address spaces that are authorized to access the volume. The method further receives an I/O request to access the volume and determines whether the I/O request originates from one of the address spaces identified in the list. If the I/O request originates from one of the address spaces in the list, the method passes the I/O request to the volume. If, on the other hand, the I/O request does not originate from one of the address spaces in the list, the method blocks the I/O request. A corresponding system and computer program product are also disclosed.

Abstract: One or more configuration parameters for an object gateway instance are received at an interface to a provider network, the parameters including an identifier of a first object store of the provider network for which to cache objects in a first object cache of the object gateway instance and an indication of a data transfer mode that controls when objects written to the first object cache are written to the first object store. The one or more configuration parameters are stored in a data store of the provider network and sent to the object gateway instance. A read request that includes the identifier of the first object store and a first object identifier is received from the object gateway instance, and a first object associated with the first object identifier and stored in the first object store is sent to the object gateway instance.

Abstract: A drain cleaning machine for moving a snake in a drain includes a rotating shell, a motor to rotate the rotating shell, and a radial drive mechanism coupled for rotation with the rotating shell and including a plurality of collets. The radial drive mechanism is switchable between an engaged state in which the one or more collets move toward a snake axis to engage the snake, and a disengaged state. A translate mechanism is coupled for rotation with the rotating shell and includes a plurality of wheels. The translate mechanism is switchable between an engaged state in which the wheels move toward the snake axis to engage the snake, and a disengaged state. A selection mechanism is configured to switch the radial drive mechanism from the disengaged state to the engaged state and configured to switch the translate mechanism from the disengaged state to the engaged state.

Abstract: A method for collecting diagnostic information associated with an error is disclosed. In one embodiment, such a method includes detecting an error condition associated with mirroring data from a primary volume to a secondary volume. In response to detecting the error condition, the method modifies various diagnostic parameters to improve collection of diagnostic information. The method then immediately re-drives the data from the primary volume to the secondary volume. This will ideally recreate the error. Upon recreating the error, the method captures diagnostic information associated with the error in accordance with the modified diagnostic parameters. A corresponding system and computer program product are also disclosed.