Abstract: A method is used in facilitating storage pool provisioning. A sequence of user interface screens is provided for configuring one or more physical devices of a data storage system for use in connection with provisioning a storage pool. By the sequence, a provisioning specification describing a RAID type and capacity is received. Best practices information describing one or more sets of data storage system best practices is received. By the sequence, a proposal is presented for performing configuration processing in connection with initialization of the data storage system to configure a first portion of the one or more physical devices for use with the storage pool. The best practices information is used in producing the proposal.

Abstract: A compliance lifecycle management system is provided that addresses policy management issues at each stage of policy maturity throughout a policy lifetime. The compliance lifecycle management system provides functionality for policy control at initialization by enabling specification and creation of policies including identifying redundant and sub/super sets of policies across domains. As an infrastructure and its associated policies mature and change, the compliance lifecycle management system monitors compliance to dynamic policies to check for policy conflicts. The compliance management process may further be used to simulate the introduction of policies into the infrastructure to view the resultant impact that a new or updated policies may have on a network. With such an arrangement, policy management practices become more responsive, predictable and efficient.

Abstract: A system including an enterprise data storage system having a plurality of multi-level cell (MLC) flash devices configured as data storage drives. The enterprise data storage system is operated in such a way and the configuration of the MLC flash devices is such that the enterprise data storage system is able to maintain a performance level comparable to that of an enterprise data storage system utilizing single-level cell (SLC) flash devices.

Abstract: A system for powering on downstream devices includes a master device; a first slave device; and a first communication link connecting the master device to the slave device for enabling the master device to transmit data signals to the slave device. The master device includes a power-on signal generator for injecting a power-on signal onto the communication link and the first slave device includes a power-on signal receiver for detecting the power-on signal injected on the communication link by the power-on signal generator and powering on the first slave device.

Abstract: A method is used in managing mirroring in data storage system having a fast write device and a slow write device. A write I/O is received and is executed on the fast write device which includes a solid state drive. The write I/O is stored in interim storage having high performance sequential write capability. It is indicated that execution of the write I/O is complete. Based on the interim storage, the write I/O is executed on the slow write device.

Abstract: A method is used in managing threads in displaying data storage system information. A thread is selected having a first method for executing a background task for interacting with a data storage system and a second method for use in updating a graphical user interface display based on a result of executing the background task. From a thread pool, another thread is selected for executing the background task.

Abstract: A method, apparatus and computer-program product for mapping and identifying resources in network based services is disclosed. The method comprises the steps of determining a measure of utilization for each of the selected transactions, generating an indication for each measure of utilization exceeding an associated utilization threshold value, determining the cause of the measure of utilization exceeding the associated utilization threshold value by correlating the transactions generating the indications with the resources executing the transaction and applying additional resources until the measure of utilization is less than the associated threshold. In one aspect of the invention, balancing the measure of utilization associated with each of the selected transactions occurs to maintain each of the measures of utilization within a substantially known tolerance to each other measure of utilization.

Abstract: This invention is a system and method for managing provisioning of resources for one or more data storage networks using a new architecture.

Abstract: A method is used in flexibly managing input/output (I/O) operations based on application awareness. An I/O operation that is directed to storage is received. The storage is provisioned in accordance with an application. The provisioning includes selecting one or more default options in accordance with best practices of the application. Based on the provisioning in accordance with the application and based on a rejection template that has a user configurable description of I/O acceptance criteria, evaluation of the acceptability of an I/O operation is performed. The rejection template is revised.

Abstract: An apparatus, system, and method establish communication with a target device within a computer system using an in-band communication protocol. Based on identification information received from the target device in accordance with a standard information exchange convention, a device manager identifies a nonstandard information exchange convention. A handler loaded into the device manager facilitates communication between a device caller and the target device using the nonstandard information exchange convention.

Abstract: A method, system, and program product for ensuring consistency of dynamically changing volumes comprising creating a production change map for a first volume; wherein the production change map is marked to represent pending IO, creating a replication change map for a second volume; wherein the replication change map is marked to represent pending IO, transferring a first signature corresponding to a portion of the first volume to the replication volume, wherein the signature does not include the portion marked as pending IO in the production change map, comparing the first signature to a second signature, the second signature corresponding to a portion of the replication volume corresponding to the portion of the production volume; wherein portions marked as dirty in the replication change map are not included in the signature.

Abstract: A method and apparatus for managing a transaction in a storage area network is presented. A request is received from an agent process at a management server. The management server provides a ticket relating to the request. The ticket is sent to the agent process. The management server identifies a storage process related to the ticket. The storage process contacts the agent process and receives the information from the agent process.

Abstract: A task analyzer analyzes received tasks to identify and classify corresponding sub-tasks. For example, for each given received task, the task analyzer analyzes a given task to identify a first type of sub-tasks (e.g., sub-tasks that can be executed in any order). The task analyzer also analyzes the given task to identify a second type of sub-tasks (e.g., sub-tasks that are to be executed in parallel) associated with the given task. A task execution manager submits the first type of sub-tasks for execution by a first pool of processing threads, which is dedicated for executing the first type of sub-tasks. The task execution manager submits the second type of sub-tasks for execution by the second pool of processing threads. The second pool of processing threads is dedicated to execute the second type of sub-tasks.

Abstract: A task manager (or related operation) keeps track of free processing threads amongst multiple processing threads. The task manager receives a request to execute a task. Prior to execution, the task manager processes the task to identify portions of the task that must be executed in parallel. In response to detecting that there is a first processing thread in the pool free to execute a main portion of the task as well as sufficient free additional processing threads in the pool to execute each of the identified sub-tasks in parallel, the task manager submits the task for execution by the pool of multiple processing threads. For accounting purposes, the task manager modifies tracking information to indicate that the first processing thread and additional processing threads are now unavailable for use for execution of other tasks.

Abstract: A method, article of manufacture, and apparatus for presenting an auditory recording having associated data representing at least one term identified in the recording is disclosed. In an embodiment, this comprises providing a visual representation of the term, providing a link associated with an occurrence of the term in the recording, and when the link is selected, playing a portion of the recording corresponding to the occurrence of the term. A portion of the recording following the portion corresponding to the occurrence of the term may be played.

Abstract: A method, apparatus and computer-program product for logically representing and analyzing a Virtual Private Network (VPN) in a plurality of functional representation layers is disclosed.

Abstract: Described are techniques for facilitating communication between code modules. A first code module is provided that makes at least one call using an application programming interface. The application programming interface facilitates communication between the first code module and a target code module and provides support for performing the at least one call from a first execution mode associated with the first code module and a second execution mode associated with the target code module. The application programming interface provides support for user space to user space communication, user space to kernel space communication, kernel space to kernel space communication, and kernel to user space communication. The first execution mode of the first code module and said second execution mode of the target code module are determined. A communication path is established between the code modules in accordance with the first and second execution modes.

Abstract: Aspects of the invention relate to creating a snapshot of a file system on an OAS system. A snapshot of a file system is an image of a file system at a particular point in time. A snapshot of a file system may be used to restore the file system to its state at the time of creation of the snapshot in, for example, situations where the file system has become corrupted.

Abstract: Techniques for performing de-duplication for data blocks in a computer storage environment. At least one chunking/hashing unit receives input data from a source and processes it to output data blocks and content addresses for them. In one aspect, the chunking/hashing unit outputs all blocks without checking to see whether any is a duplicate of a block previously stored on the storage environment. In another aspect, each data block is processed by one of a plurality of distributed object addressable storage (OAS) devices that each is selected to process data blocks having content addresses with a particular range. The OAS devices determine whether each received data block is a duplicate of another previously stored on the computer storage environment, and when it is not, stores the data block.

Abstract: Flow control settings are configured. Credit settings for credit types of input/output interconnect ports are programmed at a low value. The system type of a system containing the input/output interconnect ports is detected. The credit settings are reprogrammed in accordance with the system type.