Sun Microsystems, Inc.

Other

Netapp, Inc.

John R Corbin

Vijay Singh

Robert S Gittins

Ebrahim Hashemi

Sloan Johnson

Saadia Khan

In one embodiment, a data migration technique enables a source storage system to efficiently and reliably migrate data to a destination storage system. The source storage system includes a copy engine that is configured to migrate or copy a set of data, e.g., one or more files, to the destination storage system using a file-based protocol over a network. The copy engine is also configured to ensure that any locks associated with the migrated data set are reclaimed at the destination storage system using a lock-based protocol. The source storage system further includes a proxy service that is configured to translate client requests to access the migrated data set to access requests executable (i.e., discernable) by the destination storage system. The proxy service then forwards or proxies the translated requests over the network to the destination storage system for processing. In essence, the proxy service interacts with the copy engine to proxy protocol specific requests and replies between a client and the destination storage system after copying of the migrated data set has completed, thus rendering data migration transparent to the client.

Transparent data migration in a storage system environment

A method and apparatus for fast initialization of storage devices. An apparatus is described including a redundant array of storage devices that comprises a logical volume of storage. The logical volume further comprises a plurality of stripes. A bit mapped vector provides state initialization information for each of the plurality of stripes in lieu of initializing each of the stripes. A storage controller initializes each of the plurality of stripes by using accesses to the redundant array while concurrently allowing access to the plurality of stripes. Initialization of a stripe can be done by processing a write access. Associated written data to the stripe and updating its corresponding redundancy effectively initializes that stripe. The bit mapped vector is updated to reflect the initialization of that stripe. In addition, while the redundant array is idle, further initialization of un-initialized stripes occurs while concurrently allowing access to the redundant array.

Method and apparatus for fast initialization of redundant arrays of storage devices

Data routing of the present invention is a capability of pre-configuring routes for data traveling through the software or the hardware of a computer system. The routes are set up by a consumer of the data or the destination and are delivered to the producer of the data or the source. The data route may include an identification of the consumer of the data, a minimal list of routines which will perform some preprocessing of the data, a return route, a don't care mask, a set of registered routes and a set of actions. The set of actions can be a set of states to transition or a set of functions to call. In order to determine a data route hit, the incoming data from the producer is AND'ed with the don't care mask, the results of which is then compared with the set of registered routes, i.e. a pattern of bits. If the results are equal, then there is a data route hit. The incoming data from the producer is then passed off to the actions.

System for transmitting data packet after matching data packet's routing

In a computing system utilizing redundant storage devices arranged in the RAID disk array, data is stored in the computing system using a memory cache created from system memory and the disk array. A checkpoint module detects a fault in the computing system and generates a fault indication, and a cache manager writes data and parity to the memory cache in a first mode, and writes data and parity to the storage device in a second mode. In response to the fault indication, the checkpoint module copies the data contained in the cache to the disk array, and switches the cache manager from the first mode to the second mode.

Host-based RAID-5 and NV-RAM integration

The present invention provides to the software application the verification and license check out functions which are normally performed by a license server of a network software license system. The encrypted license information is contained in a license token, and is sorted in the database controlled by the license server. In contrast to the prior art where the license server either grants or denies the request after verifying the user's credentials, the license server in the preferred embodiment of the present invention finds the correct license token for the software application and transmits the license token to the licensing library. In application specific license access module attached to the application decodes the licensing token. Routines in the licensing library coupled to the software application verify the license information before checking out the license and updating the license token. The application specific license access module then encodes the updated license token before returning it to the license server. Thus, the impact of breaching the encryption/decryption of an application is limited to only one application. As a result, the present invention provides improved network-wide protection against unauthorized use of software applications in a network of computers.

Apparatus and method for licensing software on a network of computers

A tent and storage compartment therefor are mounted on the top of a van or similar vehicle. The storage compartment comprises a shallow box of approximately the same width as the van but with a length somewhat less than the length thereof and includes a base and a top hinged to the base. A pair of poles having a length approximately equal to the width of the compartment are pivotally connected to the top adjacent each front corner and rest in the front corners of the base to hold the top open. Right and left side support poles are pivotally connected to the front corners of the base and extend outwardly away from the van. The side support poles are jointed together at the other ends thereof by a connecting pole. Cables are connected between the top and the remote ends of the side poles to support the side poles in a horizontal position. Appropriately shaped tent material covers and is suspended from the cables and poles to complete the tent.

Growing community of inventors

El Paso, TX, United States of America

John R Corbin