摘要:
A method for dynamically synchronizing storage groups in a data replication environment is disclosed. In one embodiment, such a method includes detecting the addition of a volume to a storage group of a primary storage system. The method then automatically performs the following in response to detecting the addition of the volume: (1) adds a corresponding volume to a corresponding storage group on a secondary storage system; (2) creates a mirroring relationship between the volume added to the primary storage system and the volume added to the secondary storage system; and (3) adds the mirroring relationship to a mirroring session established between the storage groups on the primary and secondary storage systems. A corresponding system and computer program product are also disclosed.
摘要:
According to one embodiment, a system includes logic adapted to: receive a request to open an existing data set indicating a write operation, receive new data to write to the existing data set, determine that the existing data set is stored on a lower tier of a tiered data storage system, determine that the existing data set is capable of being updated by appending the new data to an end of the existing data set, create a temporary data set on a higher tier of the tiered data storage system comprising the new data, associate the temporary data set on the higher tier of the tiered data storage system with the existing data set on the lower tier of the tiered data storage system, and create a write indicator associated with the new data set indicating that the new data set belongs at the end of the existing data set.
摘要:
An approach to efficient data reorganization. The approach may involve searching for control interval (CI) splits and control area (CA) splits in a data component of a VSAM data set. A mapping is created that maps the source location storing the VSAM data set to a target location. The mapping reorders the VSAM data set such that the CI splits and CA splits are removed when the VSAM data set is moved to the target location in accordance with the mapping. Those CAs that do not include CI splits may be moved without using the host devices' processing resources. For example, the storage device may FlashCopy these areas directly from the source location to the target location. Those CAs that do include CI splits may be moved using the host's processing resources. For example, these CAs may be read into the host, re-ordered by the host, and written by the host to the target location.
摘要:
Method, system, and computer program product embodiments of a time-based trace facility for facilitating software debugging without interfering with the run-time behavior, performance or resource usage of the traced software are provided. The trace facility resides in a different address space than the target address space and uses different time-slices of CPU resources to execute the instructions in the address spaces. The trace facility uses a cross-memory mode to read the state data from the target address space in accordance with a time schedule. The trace facility writes the state data to a trace area, which may be located in either the target or trace address spaces or external storage. With this approach, the trace facility can read a large amount of state data frequently to construct the type of historical record needed to analysis run-time behavior, performance and resource usage. The trace facility may use a parameter file to configure a particular trace e.g. specify the target address space, one or more processing tasks within the target address space, a specific trace module, filters to extract specific state data, the time interval, the trace area, etc.
摘要:
When a VTOC and a VVDS are established for information used to access data sets of a volume, unused space remains in both structures. The data sets, VTOC and VVDS are stored on a recordable medium. For VSAM data sets, other, vital information about the data set is also stored in the VTOC; for non-VSAM data sets, vital information about the data set is also stored in the VVDS. If the VOTC entry of a non-VSAM data set becomes corrupted, the vital information in the VVDS may be used to access the stored data set. Similarly, If the VVDS entry of a VSAM data set becomes corrupted, the vital information in the VTOC may be used to access the stored data set.
摘要:
A method, system and computer-readable medium for emulating an application in a non-production computer system are presented. In a preferred embodiment, the method includes the steps of: receiving a first input that selects an application from all applications on a production computer system; receiving a second input that selects specific control files and data files that are to be utilized in an emulated version of a selected application on a non-production computer system; migrating a copy of instructions file from the selected application from the production computer system to the non-production computer system; migrating a copy of the specific control files and data files from the production computer system to the non-production computer system; and executing the copy of instructions files, while using the copy of the specific control files and data files, in the non-production computer system.
摘要:
A method of providing maintenance for a software program residing on a customer's computer system enables a customer to easily determine if there are any available updates for the software program, whether the available updates, if any, have been downloaded, which updates, if any, have been installed, and which installed updates, if any, have been activated. The method includes searching an active storage area on the customer's computer system while the software program is executing to determine the particular version of the software program. The method further includes searching a database of a software provider that provided the software program to determine if there is any update available for the software program, and if any update is available, downloading the update to the customer's computer system and installing the update.
摘要:
A basketball backboard apparatus is disclosed herein which includes a sandwich board comprising rigid front and rear panels and a resilient intermediate layer received therebetween in a sandwich relationship. Rivets are received through apertures in the sandwich board to secure the board members together, and mounting apertures are also provided for mounting the backboard to an external support and for mounting a basketball goal to the backboard. A relatively soft border is secured about the perimeter of the backboard.
摘要:
A cable separator for a compound bow is disclosed which includes a body defining an aperture within which a cable guard on the bow is slidably received. A first inside cable surface having a groove facing away from the cable guard is defined on one side of the guard. An L-shaped flange extends on the other side of the cable guard and defines a cable surface for reception thereagainst of the other inside cable of the bow. The cable separator may be mounted to an assembled bow and the inside cables positioned therewith, without the necessity of unstringing the bow.