Abstract: In an automated data storage library, selective encryption for data stored or to be stored on removable media is provided. One or more encryption policies are established, each policy including a level of encryption, one or more encryption keys and the identity of one or more data cartridges. The encryption policies are stored in a policy table and the encryption keys are stored in a secure key server. A host requests access to a specified data cartridge and the cartridge is transported from a storage shelf in the library to a storage drive. Based on the identity of the specified cartridge, the corresponding encryption policy is selected from the table and the appropriate encryption key is obtained from the key server. The storage drive encrypts data in accordance with the key and stores the data on the media within the specified data cartridge.

Abstract: Provided are a method, system, and article of manufacture for rekeying encryption keys for removable storage media. A rekey request is received for a coupled removable storage media, wherein encryption on the coupled removable storage media uses a first key and wherein the rekey request indicates a second key. The first key and the second key are accessed in response to the rekey request. The first key is used to perform decryption for the coupled removable storage media and the second key is used to perform encryption for the coupled removable storage media.

Abstract: Write protection for data of a rewritable data storage cartridge having partitions is provided in certain circumstances by providing logical write protection; and in response to detection of an application issuing at least one partition-based command with respect to the rewritable data storage cartridge, the logical write protection is disabled with respect to the detected application. Thus, where the cartridge has a non-default index addressing location, in response to detection of an application issuing at least one command initially addressing a location other than the non-default index location, logical write protection is enabled with respect to the detected application; and if the non-default index location is addressed, the logical write protection is disabled.

Abstract: A method, system and a computer program product to increase the availability of an automated data storage library for accessing and storing data storage media are provided. Work requests received by an accessor controller of the library from a host computer are also received and stored by a work request tracking controller. The accessor controller converts the work request into commands necessary to direct an accessor to fulfill the work request, and then sends such commands to an accessor. Upon detection by the work request tracking controller that the so-directed accessor failed to conduct the command issued by the accessor controller, the work request tracking controller reconstructs the work request and sends it to an accessor controller.

Abstract: An approach for automatically sharing a tape drive in a heterogeneous computing environment that includes a first computer and second computer is presented. The first computer receives a message that includes a shared tape drive identifier, a source port identifier of the second computer, and a reservation status change for the tape drive. Based on the tape drive identifier, the first computer determines that the tape drive is connected to the first computer. The source port identifier is determined to not identify any host bus adapter installed in the first computer. In response to the first computer determining that the reservation status change indicates a reservation or a release of the tape drive for the second computer, the first computer sets the tape drive offline or online, respectively, in an application executing in the first computer.

Abstract: An apparatus, system, and method are disclosed for performing data library background operations. The present invention teaches one or more data storage drives capable of entering a phantom load mode and a library controller capable of initiating the phantom load mode for the data storage drives. The phantom load mode operates to hide the media status of the data storage drives from host computers during background operations involving the data storage drives. In certain embodiments, the data storage drives exit the phantom load mode as a result of a media unload request. In some embodiments, the library controller receives a media load request from a host computer during the background operation and completes the media load request upon completion of the background operation.

Abstract: An automated data storage library having a plurality of multi-cartridge deep slot cells, each configured to store a plurality of data storage cartridges arranged in sequential order of tiers from front to rear, and having accessor(s) to selectively extract, place and transport cartridges with respect to the cells; operating the accessor(s) to selectively extract, place and transport cartridges with respect to the multi-cartridge deep slot cells and with respect to other elements of the automated data storage library; filling at least the frontmost tier of vacant at least selected multi-cartridge deep slot cells in the selectively extracting, placing and transporting step in accordance with a predetermined algorithm, while leaving other tiers vacant. If the frontmost tier is full, a cartridge is placed into the one of the selected multi-cartridge deep slot cells having the factored greatest number of tiers available to place a cartridge.

Abstract: An approach for automatically sharing a tape drive in a heterogeneous computing environment that includes a first computer and second computer is presented. The first computer receives a message that includes a shared tape drive identifier, a source port identifier of the second computer, and a reservation status change for the tape drive. Based on the tape drive identifier, the first computer determines that the tape drive is connected to the first computer. The source port identifier is determined to not identify any host bus adapter installed in the first computer. In response to the first computer determining that the reservation status change indicates a reservation or a release of the tape drive for the second computer, the first computer sets the tape drive offline or online, respectively, in an application executing in the first computer.

Abstract: In an automated data storage library having a plurality of multi-cartridge deep slot cells, each configured to store a plurality of data storage cartridges arranged in sequential order of tiers from front to rear, and having accessor(s) configured to selectively extract, place and transport cartridges with respect to the cells; operating the accessor(s) to selectively extract, place and transport data storage cartridges with respect to the multi-cartridge deep slot cells and with respect to other elements of the automated data storage library; filling at least the frontmost tier of vacant at least selected multi-cartridge deep slot cells in the selectively extracting, placing and transporting step in accordance with a predetermined algorithm, while leaving other tiers vacant. If the frontmost tier is full, a data storage cartridge is placed into the one of the selected multi-cartridge deep slot cells having the factored greatest number of tiers available to place a data storage cartridge.

Abstract: An automated data storage library having a plurality of multi-cartridge deep slot cells, each configured to store a plurality of data storage cartridges arranged in sequential order of tiers from front to rear, and having accessor(s) to selectively extract, place and transport cartridges with respect to the cells; operating the accessor(s) to selectively extract, place and transport cartridges with respect to the multi-cartridge deep slot cells and with respect to other elements of the automated data storage library; filling at least the frontmost tier of vacant at least selected multi-cartridge deep slot cells in the selectively extracting, placing and transporting step in accordance with a predetermined algorithm, while leaving other tiers vacant. If the frontmost tier is full, a cartridge is placed into the one of the selected multi-cartridge deep slot cells having the factored greatest number of tiers available to place a cartridge.

Abstract: In an automated data storage library, selective encryption for data stored or to be stored on removable media is provided. One or more encryption policies are established, each policy including a level of encryption, one or more encryption keys and the identity of one or more data cartridges. The encryption policies are stored in a policy table and the encryption keys are stored in a secure key server. A host requests access to a specified data cartridge and the cartridge is transported from a storage shelf in the library to a storage drive. Based on the identity of the specified cartridge, the corresponding encryption policy is selected from the table and the appropriate encryption key is obtained from the key server. The storage drive encrypts data in accordance with the key and stores the data on the media within the specified data cartridge.

Abstract: In an automated data storage library having a plurality of multi-cartridge deep slot cells, each configured to store a plurality of data storage cartridges arranged in sequential order of tiers from front to rear, and having accessor(s) configured to selectively extract, place and transport cartridges with respect to the cells; operating the accessor(s) to selectively extract, place and transport cartridges with respect to the cells and with respect to other elements of the library. If all tiers of the selected cells except the rearmost tier are full, added cartridges are placed to fill the rearmost tier of an evenly spread selection of the cells.

Abstract: A label corresponding to a cryptographic key is stored at a first computational device. A user provided label is received at a second computational device. The user provided label is sent from the second computational device to the first computational device. The user provided label is compared to the label stored at the first computational device. The cryptographic key is used to perform cryptographic operations on data, in response to determining that the user provided label matches the label stored at the first computational device.

Abstract: A method and system for automatically sharing a tape drive in a heterogeneous computing environment that includes a first computer and second computer. The first computer receives a message that includes a shared tape drive identifier, a source port identifier of the second computer, and a reservation status change for the tape drive. Based on the tape drive identifier, the first computer determines that the tape drive is connected to the first computer. The source port identifier is determined to not identify any host bus adapter installed in the first computer. In response to the first computer determining that the reservation status change indicates a reservation or a release of the tape drive for the second computer, the first computer sets the tape drive offline or online, respectively, in an application executing in the first computer.

Abstract: In an automated data storage library, selective encryption for data stored or to be stored on removable media is provided. One or more encryption policies are established, each policy including a level of encryption one or more encryption keys and the identity of one or more data cartridges. The encryption policies are stored in a policy table and the encryption keys are stored in a secure key server. A host requests access to a specified data cartridge and the cartridge is transported from a storage shelf in the library to a storage drive. Based on the identity of the specified cartridge the corresponding encryption policy is selected from the table and the appropriate encryption key is obtained from the key server. The storage drive encrypts data in accordance with the key and stores the data on the media within the specified data cartridge.

Abstract: Control of the encryption of data for storage with respect to removable data storage cartridges having a recording media and having cartridge memory with at least a portion lockable to read-only, employs the steps of inspecting the read-only portion of the cartridge memory of the removable data storage cartridge for an “Encrypt-Only” flag. If the “Encrypt-Only” flag is present, writes to the recording media of the removable data storage cartridge are limited to data in an encrypted format, if any; and, else, writes to the recording media of the removable data storage cartridge are allowed for data in any of encrypted and unencrypted formats.

Abstract: Provided are a method, system, and article of manufacture for rekeying encryption keys for removable storage media. A rekey request is received for a coupled removable storage media, wherein encryption on the coupled removable storage media uses a first key and wherein the rekey request indicates a second key. The first key and the second key are accessed in response to the rekey request. The first key is used to perform decryption for the coupled removable storage media and the second key is used to perform encryption for the coupled removable storage media.

Abstract: In an automated data storage library having a plurality of multi-cartridge deep slot cells, each configured to store a plurality of data storage cartridges arranged in sequential order of tiers from front to rear; having a plurality of single cartridge storage slots; and having accessor(s) configured to selectively extract, place and transport cartridges with respect to the cells; operating the accessor(s) to selectively extract, place and transport data storage cartridges with respect to the multi-cartridge deep slot cells and the storage slots, and with respect to other elements of the automated data storage library; and, if a data storage cartridge is recently used by and is to be demounted from a selected other element of the automated data storage library: first, extracting another data storage cartridge from the storage slots, vacating one of the storage slots; and second, extracting, transporting and placing the demounted data storage cartridge in the vacated storage slot.

Abstract: Provided are a method, system, and article of manufacture for rekeying encryption keys for removable storage media. A rekey request is received for a coupled removable storage media, wherein encryption on the coupled removable storage media uses a first key and wherein the rekey request indicates a second key. The first key and the second key are accessed in response to the rekey request. The first key is used to perform decryption for the coupled removable storage media and the second key is used to perform encryption for the coupled removable storage media.

Abstract: A computer program product for operating an automated data storage library with storage shelves, data storage drive(s), a bus bar; and a robot accessor with a drive system for moving the robot accessor, an accessor communication interface, a bus bar relay configured to engage and disengage the bus bar; and a robot control configured to operate the drive system to move the robot accessor, to operate a picker, and to operate the bus bar relay to engage the bus bar when the robot accessor is stationary, to provide communication capability with a library communication interface via the bus bar relay and the bus bar when the bus bar relay engages the bus bar. Additionally, a second communication system may be provided between the robot accessor and the automated data storage library, which is operable at least when the robot accessor is moving.