Abstract: A method for providing bare-metal (BMS) resources includes receiving, by a system control processor, a partitioning request from a system control processor manager that specify a quantity of physical partitions, in response to the partitioning request: identifying a set of physical partitions of a bare-metal system (BMS) that are capable of servicing the partitioning request based on the quantity of physical partitions, updating a partitioning configuration data structure based on the set of physical partitions and the virtual partition, and implementing the virtual partition based on the set of resources using the partitioning configuration data structure.

Abstract: The present disclosure discloses configuring a device to determine, for encrypted content, a content access key pair including a content access public key and a content access private key, the encrypted content being determined by encrypting content utilizing a symmetric key; configuring the device to determine, for a folder, a folder access key pair including a folder access public key and a folder access private key; configuring the device to encrypt the content access private key by utilizing the folder access public key; configuring the device to encrypt the symmetric key by utilizing the content access public key; configuring the device to transmit the encrypted content, the encrypted content access private key and the encrypted symmetric key to a stateless server for storage; and configuring the device to access the encrypted content by decrypting the encrypted content access private key and the encrypted symmetric key. Various other aspects are contemplated.

Abstract: A method of performing a file transaction, the method comprising: providing a transaction instruction to perform a set of one or more transaction operations on a device; responsive to determining the transaction instruction comprises one or more write transaction operations, wherein the one or more write transaction operations collectively relate to a first file group comprising at least one file object, the first file group has a first size, and each of the at least one file objects comprises identification information, if the first size does not exceed available device storage: writing each of the at least one file objects with an uncommitted file type; after the first file group is written, storing transaction information on the device storage indicating that the transaction is committed; responsive to determining that one or more pre-existing file objects share identification information with any of the first file group, erasing the one or more pre-existing file objects; updating the type of each of the a

Abstract: A method including determining, by a device, an assigned key pair including an assigned public key and an assigned private key; determining, by the device for a folder including encrypted content, a folder access key pair including a folder access public key and a folder access private key; encrypting, by the device, the folder access private key by utilizing the assigned public key; and accessing, by the device, the encrypted content based at least in part on decrypting the folder access private key. Various other aspects are contemplated.

Abstract: In an active-active system, if write lock permission is granted to a second storage array, a first storage array sends to-be-written data and a lock revocation request together to a lock server; the lock server sends a lock revocation request carrying the to-be-written data to the second storage array; after storing the to-be-written data, the second storage array sends a lock revocation success message to the lock server; the lock server gives the write lock permission to the first storage array; and the first storage array obtains the write lock permission and stores the to-be-written data.

Abstract: In virtualized environments, storage may be managed dynamically due to the changing data storage requirements. In such environments, logical storage unit identifiers (LUN IDs) may be modified as a result of deleting an existing mapping between physical storage and a virtualization server and recreating the mapping. This can result in I/O request failure. Techniques for resolving errors resulting from LUN ID modifications can be time-intensive and labor-intensive and can disrupt a communication path between a host device and the physical storage. Functionality can be implemented to dynamically identify the LUN ID modifications, determine valid LUN IDs, and retransmit failed I/O requests. This can help minimize I/O request failures due to LUN ID modifications without disrupting the communication path between the host device and the physical storage.

Abstract: A method for replacing a first root file system comprising, retrieving a second root file system, mounting the second root file system on a first system in a sysplex as the sysplex root file system, replacing sysplex root mount information associated with the first root file system with sysplex root mount information associated with the mounted second root file system, updating a root on the first system to point to the mounted second root file system, invalidating the first root file system on the first system, updating a first file system to point to the mounted second root file system in the first system, updating an active process with the sysplex root mount information associated with the mounted second root file system, and unmounting the first root file system from the first system.

Abstract: Methods and apparatus involve file systems for virtual machines and image deltas. Representatively, a plurality of virtual machines are configured on a hardware platform and a file system includes both a read-only portion and a writable portion that together provides the entire file system for each virtual machine. Also, a union of the two portions provides an incremental snapshot of its corresponding virtual machine and can be used to restore the virtual machine upon a failure event. In content, the read-only portion contains substantially immutable information such as core basic system image, while the writable portion contains configuration information, state data and production information. An available storage device for the virtual machines is partitioned for each virtual machine and its corresponding writable portion is found therein. Other features contemplate particular configurations and computer program products, to name a few.

Abstract: A stress testing method of a file system includes traversing local or network storage devices with a drive letter; detecting a network mapping path of the network storage devices; calculating an absolute path of all the storage devices through a mounted point and a system volume; collecting the above information to update the path information of the file system; and then calling a corresponding test algorithm and stressing strategy according to different types of storage devices, so as to perform the stress test. The stress testing method can make the file system display storage devices without a drive letter, and call appropriate testing methods and stressing strategies for different types of storage devices, so the depth and scope of the stress testing for file system are expanded, the accuracy of the test is enhanced, and the problem of occupying too many system resources is avoided.

Abstract: An image forming apparatus includes a process execution unit which processes data input to a storage area by using the attribute of a process set in the storage area, an error event generation unit which generates an error event to execute an error process when an error is detected during execution of the process by the process execution unit, and an error process execution unit which executes an error process associated with the storage area in accordance with the error event generated by the error event generation unit.