| Patent application number | Description | Published |
|---|
| 20090210620 | Method to handle demand based dynamic cache allocation between SSD and RAID cache - An apparatus and method to dynamically allocate cache in a SAN controller between a first fixed cache comprising traditional RAID cache comprised of RAM and a second, scalable RAID cache comprising of SSDs (Solid State Devices). The method is dynamic and switches between the first and second cache depending on IO demand. | 08-20-2009 |
| 20090265507 | SYSTEM TO REDUCE DRIVE OVERHEAD USING A MIRRORED CACHE VOLUME IN A STORAGE ARRAY - A system comprising a host, a solid state device, and an abstract layer. The host may be configured to generate a plurality of input/output (IO) requests. The solid state device may comprise a write cache region and a read cache region. The read cache region may be a mirror of the write cache region. The abstract layer may be configured to (i) receive the plurality of IO requests, (ii) process the IO requests, and (iii) map the plurality of IO requests to the write cache region and the read cache region. | 10-22-2009 |
| 20090265724 | SYSTEM ELIMINATING HARDWARE DUPLICATION DURING APPLICATION TESTING OF AN INTERNAL STORAGE ARRAY ACROSS DIFFERENT OPERATING SYSTEMS - A method for capturing data comprising the steps of (A) handling a call for a first operating system at a storage library, (B) routing the call from the storage library to a controller firmware, (C) sending a response to the call from the controller firmware to the storage library, and (D) storing the response in a data store box for later use by the storage library. | 10-22-2009 |
| 20100023715 | SYSTEM FOR IMPROVING START OF DAY TIME AVAILABILITY AND/OR PERFORMANCE OF AN ARRAY CONTROLLER - An apparatus comprising a storage array, a controller, a cache storage area and a backup storage area. The storage array may include a plurality of storage devices. The controller may be configured to send one or more commands configured to control reading and writing data to and from the storage array. The commands may include volume configuration information used by each of the plurality of storage devices. The cache storage area may be within the controller and may be configured to store a copy of the commands. The backup storage area may be configured to store the copy of the commands during a power failure. | 01-28-2010 |
| 20100131581 | METHOD AND/OR APPARATUS FOR CERTIFYING AN IN-BAND MANAGEMENT APPLICATION OF AN EXTERNAL STORAGE ARRAY - A method comprising the steps of (A) generating a call for a first operating system at a host, (B) sending the call for the first operating system from the host to a storage array over a network, (C) generating a response to the call for the first operating system from the host, (D) sending the response from the storage array to the host over the network and (E) capturing and storing the response in a device. | 05-27-2010 |
| 20100180151 | METHOD FOR HANDLING INTERRUPTED WRITES USING MULTIPLE CORES - An apparatus comprising a storage array, a primary controller, a secondary controller and a solid state device. The storage array may be configured to be accessed by a plurality of controllers. A first of the plurality of the controllers may be configured as the primary controller configured to read and write to and from the storage array during a normal condition. A second of the plurality of the controllers may be configured as the secondary controller configured to read and write to and from the storage array during a fault condition. The solid state device may be configured to (i) store data and (ii) be accessed by the storage array and the secondary controller. | 07-15-2010 |
| 20100223427 | SYSTEM FOR HANDLING INPUT/OUTPUT REQUESTS BETWEEN STORAGE ARRAYS WITH DIFFERENT PERFORMANCE CAPABILITIES - An apparatus comprising a remote storage array, a primary storage array and a network. The remote storage array may be configured to (i) define a queue size based on a performance capability of the remote storage array, (ii) generate a multiplier based on resources being used by the remote storage array, and (iii) adjust the queue size by the multiplier. The primary storage array may be configured to execute input/output (IO) requests between the remote storage array and the primary storage array based on the adjusted queue size. The network may be configured to connect the remote storage array to the primary storage array. | 09-02-2010 |
| 20100262730 | System for handling parallel input/output threads with cache coherency in a multi-core based storage array - A system comprising a scheduler, a first core, and a second core. The scheduler may be configured to prioritize a plurality of input/output (IO) requests. The first core may be configured to process one of the plurality of IO requests based on the prioritizing of the plurality of IO requests. The second core may be configured to process a different one of the plurality of IO requests based on the prioritizing of the plurality of IO requests. | 10-14-2010 |
| 20100281297 | Firmware recovery in a raid controller by using a dual firmware configuration - A system comprising a first memory, a second memory, and a controller. The first memory may be configured to store a first firmware. The second memory may be configured to store a second firmware similar to the first firmware stored on the first memory. The controller may be configured to (i) operate the first firmware stored on the first memory, (ii) discontinue operating the first firmware in response to a failure of the first firmware, and (iii) begin operating the second firmware after discontinuing operation of the first firmware. | 11-04-2010 |
| 20110022794 | DISTRIBUTED CACHE SYSTEM IN A DRIVE ARRAY - An apparatus comprising a drive array, a first cache circuit, a plurality of second cache circuits and a controller. The drive array may comprise a plurality of disk drives. The plurality of second cache circuits may each be connected to a respective one of the disk drives. The controller may be configured to (i) control read and write operations of the disk drives, (ii) read and write information from the disk drives to the first cache, (iii) read and write information to the second cache circuits, and (iv) control reading and writing of information directly from one of the disk drives to one of the second cache circuits. | 01-27-2011 |
| 20110090924 | SYSTEM TO CONNECT A SERIAL SCSI ARRAY CONTROLLER TO A STORAGE AREA NETWORK - An apparatus comprising a first circuit, a second circuit and an expansion circuit. The first circuit may be configured to present and receive one or more first data packets in a first format compatible with a first protocol. The second circuit may be configured to present and receive one or more second data packets in a second format compatible with a second protocol. The expansion circuit may be configured to convert the first data packets from the first format to the second format. | 04-21-2011 |
| 20110099426 | SYSTEM FOR INJECTING PROTOCOL SPECIFIC ERRORS DURING THE CERTIFICATION OF COMPONENTS IN A STORAGE AREA NETWORK - An apparatus comprising an initiator circuit and a target circuit. The initiator circuit may be configured to (i) communicate with a network through a first interface and (ii) generate testing sequences to be sent to the network. The target circuit may be configured to (i) receive the testing sequences from the network through a second network interface and (ii) respond to the testing sequences. | 04-28-2011 |
| 20110167295 | METHOD AND/OR APPARATUS FOR CERTIFYING AN OUT OF BAND MANAGEMENT APPLICATION IN AN EXTERNAL STORAGE ARRAY - A method for configuring a storage array, comprising the steps of (A) configuring the storage array with a minimal number of components for initial testing; (B) sending a first symbol call command to the storage array to initiate a test of a structure of the storage array; (C) receiving a response from the storage array; and (D) determining whether the test passed in response to the response. | 07-07-2011 |
