Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Provided are a method, system, and program for using a heartbeat signal to maintain data consistency for writes to source storage copied to target storage. A copy relationship associates a source storage and target storage pair, wherein writes received at the source storage are transferred to the target storage. A determination is made whether a signal has been received from a system within a receive signal interval. A freeze operation is initiated to cease receiving writes at the source storage from an application in response to determining that the signal has not been received within the receive signal interval. A thaw operation is initiated to continue receiving write operations at the source storage from applications after a lapse of a freeze timeout in response to the freeze operation, wherein after the thaw operation, received writes completed at the source storage are not transferred to the target storage.

Abstract: Provided are a method, system, and program for using a heartbeat signal to maintain data consistency for writes to source storage copied to target storage. A copy relationship associates a source storage and target storage pair, wherein writes received at the source storage are transferred to the target storage. A determination is made whether a signal has been received from a system within a receive signal interval. A freeze operation is initiated to cease receiving writes at the source storage from an application in response to determining that the signal has not been received within the receive signal interval. A thaw operation is initiated to continue receiving write operations at the source storage from applications after a lapse of a freeze timeout in response to the freeze operation, wherein after the thaw operation, received writes completed at the source storage are not transferred to the target storage.

Abstract: Provided are a method, system, and program for using a heartbeat signal to maintain data consistency for writes to source storage copied to target storage. A copy relationship associates a source storage and target storage pair, wherein writes received at the source storage are transferred to the target storage. A determination is made whether a signal has been received from a system within a receive signal interval. A freeze operation is initiated to cease receiving writes at the source storage from an application in response to determining that the signal has not been received within the receive signal interval. A thaw operation is initiated to continue receiving write operations at the source storage from applications after a lapse of a freeze timeout in response to the freeze operation, wherein after the thaw operation, received writes completed at the source storage are not transferred to the target storage.

Abstract: The invention automatically selects a copy function according to a policy associated with data to be copied. The apparatus comprises an identification module configured to identify available copy functions in response to a data copy request that includes a predefined copy policy, a comparison module configured to compare each copy function of a storage device to attributes of the predefined copy policy, a selection module configured to automatically select a copy function that satisfies the predefined copy policy, and a relationship module configured to establish a copy relationship between the determined copy function and the data copy request. A policy generation module may be included and configured to read a set of required attributes from an application and to establish the predefined copy policy based on the set of required attributes from the application.

Abstract: Provided are a method, system, and program for using a heartbeat signal to maintain data consistency for writes to source storage copied to target storage. A copy relationship associates a source storage and target storage pair, wherein writes received at the source storage are transferred to the target storage. A determination is made whether a signal has been received from a system within a receive signal interval. A freeze operation is initiated to cease receiving writes at the source storage from an application in response to determining that the signal has not been received within the receive signal interval. A thaw operation is initiated to continue receiving write operations at the source storage from applications after a lapse of a freeze timeout in response to the freeze operation, wherein after the thaw operation, received writes completed at the source storage are not transferred to the target storage.

Abstract: Provided are a method, system, and program for using a heartbeat signal to maintain data consistency for writes to source storage copied to target storage. A copy relationship associates a source storage and target storage pair, wherein writes received at the source storage are transferred to the target storage. A determination is made whether a signal has been received from a system within a receive signal interval. A freeze operation is initiated to cease receiving writes at the source storage from an application in response to determining that the signal has not been received within the receive signal interval. A thaw operation is initiated to continue receiving write operations at the source storage from applications after a lapse of a freeze timeout in response to the freeze operation, wherein after the thaw operation, received writes completed at the source storage are not transferred to the target storage.

Abstract: An apparatus, system, and method are disclosed for initializing a synchronized remote database. A creation module creates a first backup table of a backup database from a schema for a primary table of a primary database. A read module reads each row from the primary table with an application server configured to manage access to the primary database by a database application. A construction module constructs a SQL command for each row of the primary table. Each SQL command inserts data of a primary table row in the first backup table. An application module applies each SQL command to the first backup table to mirror the primary table at the first backup table.

Abstract: This embodiment allows for a communications path between two storage management servers, when they do not have their normal HA communications path connected directly with one another, to send communications through the storage device server. An embodiment of this invention creates a request header that will direct the storage device server to perform certain operations. This request header is used to send commands from the storage management server to the storage device servers. This common connection with the storage device between the two storage management servers allow them to continue communication with each other if the direct link is severed.

Abstract: This presentation allows for two or more storage management servers to be in an active high availability (HA) state for the same set of storage devices and copy services relationships; rather than having a single server be in an active HA state and the other servers being in a standby HA state. This makes each HA server to be able to accept commands at any time so that they will not have to issue a takeover command to a standby server just to start issuing commands. This will also ensure that the data replication pairs will continue copying data until an event of an actual disaster; in which the active servers would then cause the data replication to be suspended so that a consistent set of data is secured on the secondary site.

Abstract: An apparatus, system, and method are disclosed for initializing a synchronized remote database. A creation module creates a first backup table of a backup database from a schema for a primary table of a primary database. A read module reads each row from the primary table with an application server configured to manage access to the primary database by a database application. A construction module constructs a SQL command for each row of the primary table. Each SQL command inserts data of a primary table row in the first backup table. An application module applies each SQL command to the first backup table to mirror the primary table at the first backup table.

Abstract: An apparatus, system, and method are disclosed for synchronizing a remote database. A monitor module monitors an update from a database application to a primary table of a primary database. The update is communicated through an application server. The application server is configured to manage access to the primary database by the database application. A construction module constructs a SQL command in text format that is equivalent to the update. An update module applies the SQL command to a backup table of a backup database. The backup table is a logical mirror image of the primary table prior to the application of the update to the primary table. In one embodiment, a verification module verifies that the SQL command is successfully applied to the backup table.

Abstract: Disclosed is a technique for creating a copy services solution. A document describing the copy services solution is received. The document is converted to executable code. The code is executed to perform one or more base copy services solutions described with base copy types in the document.

Abstract: A computer program for automatically pairing target resources 20 such as volumes or logical units to source resources 20 containing data to be copied. Available target pools 48, 50, 52, 54 of target volumes are determined eligible for copying based on a technical compatibility and a user-defined metric such as recovery point or recovery time. User defined metrics and a policy to implement the metrics may be stored in a medium and selected by a user. The source volumes are prioritized, and progressively larger segments of the eligible target pools are searched for a target volume that satisfies the technical compatibility and user-defined metric. Where subgroups such as nested volumes are present in the source volumes, subgroups are also prioritized for searching. Where no target volume can be paired, the corresponding source volume is marked as processed and a search begins for the next source volume.

Abstract: A method, apparatus, and article of manufacture for performing a point-in-time backup using a snapshot function. Work space on a work virtual volume is obtained to hold the snapshot copy of the source data being copied from a source virtual volume. Updates to the source virtual volume are suspended during the snapshot function, so as to provide a logically consistent view of the source virtual volume at a common point in time. Pointers are copied from a virtual track table of the source virtual volume to a virtual track table of the work virtual volume without actually moving any data on data storage devices referenced by those pointers. As a result, the snapshot function provides a method for copying the source virtual volume to the work virtual volume very quickly. Upon completion of the snapshot function, updates to the source virtual volume may be resumed.