13 results about "SCSI" patented technology

Methods and apparatus to manage transmissions between domains and memory are disclosed. An example electronic communications security system disclosed herein includes media storage; a first host bus adapter (HBA) serial attached small computer system interface (SCSI) (SAS) card to: communicatively couple a first domain to the media storage; and enable transmission of first data from the first domain to the media storage; and a second HBA SAS card that is write-block enabled to: communicatively couple a second domain to the media storage; enable access of the first data from the media storage by the second domain; and prevent second data from exiting the second domain.

This invention provides a method and system for distributing I / O across SAS expanders between a controller and a disk. The method includes: an ITS module retrieving I / O requests from an I / O request queue and encapsulating them into SCSI commands; selecting a target device address; selecting the local expander channel address for odd-numbered slots and the peer expander channel address for even-numbered slots; the SAS driver transmitting the SCSI command to the local expander via the SAS bus; the local expander selecting the corresponding channel for transmission based on the SAS address encapsulated in the SCSI command; and when the local expander fails to distribute the I / O, it returns a corresponding I / O error to the ITS module, which modifies the SAS address in the SCSI command to the corresponding channel address on the peer expander and re-distributes the I / O. This invention provides a method and system for distributing I / O across SAS expanders between a controller and a disk, allowing I / O to be distributed to the storage disk via the expander belonging to the peer controller when I / O distribution between the current controller and the expander / storage disk fails.

The invention discloses a method and a device for realizing communication between USB (universal serial bus) equipment and an mac (media access control) platform application, and relates to the field of information security. The implementation method comprises a stripping process and a communication process, in the stripping process, the USB equipment is stripped from a kernel mode to a user mode, in the communication process, instruction communication between the USB equipment and a normal SCSI protocol applied by the mac platform is achieved through a Libusb interface library, the whole process does not need user participation, use is convenient, and user experience is friendly.

The application proposes a large-scale MIMO system channel graph construction method based on a latent space diffusion model (LDM). The method uses the spatial consistency of the large-scale MIMO system channel to learn the conditional probability distribution of the statistical channel state information (sCSI) about the user terminal position to construct the channel graph. An improved variational autoencoder (VAE) is used to learn the low-dimensional representation of high-dimensional sCSI, and the LDM is improved to improve the generation accuracy of the low-dimensional representation of sCSI, and then a channel graph containing position and sCSI low-dimensional representation data is constructed. The storage and transmission cost of the channel graph is greatly reduced compared with directly using high-dimensional sCSI, and the sCSI low-dimensional representation in the channel graph can be accurately restored to high-dimensional sCSI using VAE, and the generation process does not depend on the pilot signal, which greatly saves the pilot overhead while accurately generating sCSI.

A storage device connected to a server includes a network switch, an extender electrically connected to the network switch, and a baseboard management controller electrically connected to the network switch and the extender. The extender generates and transmits rack data supporting the Small Computer System Interface (MSI) Rack Service Format to the baseboard management controller via an internal network through the network switch. After receiving the rack data from the extender via the network switch and the internal network, the baseboard management controller translates the rack data into rack translated data supporting the Redfish format and transmits the rack translated data to the server via an external network through the network switch. This allows users to remotely manage the storage device using out-of-band management.

A system and method for performing standards-compliant data sanitization of Small Computer System Interface (SCSI), Advanced Technology Attachment (ATA), and Non-Volatile Memory Express (NVMe) hard disk drives (HDDs), solid state drives (SSDs), Non-Volatile Memory Express (NVMe) drives, and other portable storage media, e.g. flash storage, USB thumb drives at an optimized speed. The sanitization and overwrite processes herein disclosed are executed by completely web-based applications that use the local hard drive (host) as a server intermediate the web browser and the program files.

The application provides a method and device for querying hard disk VPD information in a BIOS stage, and belongs to the technical field of hard disk parameter acquisition. The method provided by the application comprises the following steps: in the BIOS stage, a plurality of enumerated hard disks are acquired; a target hard disk to be queried is screened from the enumerated hard disks based on the device connection mode of the enumerated hard disks, and the target hard disk to be queried is connected to a mainboard through a RAID card; a VPD information query instruction is sent by the BIOS end based on a SCSI protocol, and the RAID card forwards the query instruction to the target hard disk to be queried; the target hard disk to be queried returns hard disk information corresponding to the query instruction to the RAID card based on the SCSI protocol, and the hard disk information is sent to the BIOS end through the RAID card; and the received hard disk information is completely consistent with the hard disk information stored locally by the target hard disk to be queried. The method and device for querying hard disk VPD information in the BIOS stage provided by the application are used for realizing complete acquisition of hard disk information under the RAID card of the BIOS end.

The application provides a flow distribution method and device, equipment and a storage medium. The method comprises the following steps: every preset time length, a plurality of central processing units (CPUs) currently specified by a storage performance development kit (SPDK) iSCSI service are acquired. When a new flow connection appears, according to the current load coefficient of each CPU, the flow connection is distributed to the CPU with the minimum current load coefficient. When no new flow connection appears, according to the current load coefficient of each CPU, the flow connection connected to the CPU corresponding to the maximum load coefficient is migrated to the CPU corresponding to the minimum load coefficient. The application improves the balance of flow distribution on the CPU.

The application provides a method for realizing shared volumes based on an FC protocol, a host computer and an underlying storage device are connected through the FC protocol, a cloud host disk driver uses virtio-scsi, an SCSI locking mechanism is used, and the cloud host computer that is mounted with the shared volume needs to have forced non-affinity and be distributed on different host computers.The application has the beneficial effects that the method for realizing shared volumes based on the FC protocol is used to realize shared volume mounting; the cloud host computer no longer depends on an ISCSI protocol, and a special network card and a network segment need not be configured; the cloud host computer is mounted with the shared volume through the host computer, and is no longer directly connected with the underlying shared storage device, direct exposure is avoided, and the method is safer.

Disclosed is a small computer-system interface (SCSI) device (102) including an initialization unit (110) and a control unit (112), implemented on at least one of, a Field Programmable Gate Array (FPGA) and Application Specific Integrated Circuits (ASICs). The query unit (110) sends a first signal to a slave controller (104), receives, from the Slave controller (104), first information of a peripheral device (106), in response to the first signal, receives second information from the master controller (108). The control unit (112) generates a plurality of command descriptor blocks (CDBs) based on the first information and the second information, and sends the plurality of CDBs to the slave controller (104) for a transfer of data between the master controller (108) and the peripheral device (106), receives the data from the slave controller (104) and send the data to the master controller (108).

The application discloses an implementation method and device for communication between a USB device and a mac platform application, and relates to the field of information security. The implementation method comprises a stripping process and a communication process. In the stripping process, the USB device is stripped from a kernel state to a user state. In the communication process, the Libusb interface library is used to realize instruction communication of a normal SCSI protocol between the USB device and the mac platform application. The whole process does not require user participation, and is convenient to use and friendly to user experience.

A system and method for performing standards-compliant data sanitization of Small Computer System Interface (SCSI), Advanced Technology Attachment (ATA), and Non-Volatile Memory Express (NVMe) hard disk drives (HDDs), solid state drives (SSDs), Non-Volatile Memory Express (NVMe) drives, and other portable storage media, e.g. flash storage, USB thumb drives at an optimized speed and for protecting an audit trail created while performing standards-compliant data sanitization of information and data storage devices. The sanitization and overwrite processes herein disclosed are executed by completely web-based applications that use the local hard drive (host) as a server intermediate the web browser and the program files.

The invention discloses a general disk command issuing method, and belongs to the technical field of solid state disks. The method comprises the following steps: firstly, analyzing a user instruction into ATA command operation by adopting a semantic interface; carrying out intelligent risk interception through a dual risk assessment mechanism; then, the command is packaged and issued by using an SCSI-ATA transparent transmission technology; real-time progress monitoring is realized by adopting a dual-cycle architecture of active polling and event monitoring; and finally, the original response is converted into a readable suggestion through the error code mapping library. And two execution modes of foreground synchronization and background asynchronization are supported, and multiple command types such as equipment diagnosis, performance test and secure erasure are covered. According to the method, the operation threshold is greatly reduced, and a complex hexadecimal command is replaced by semantic parameters; misoperation is effectively prevented through intelligent risk interception, and system safety is guaranteed; automation, security and visualization of disk command issuing are achieved, and the efficiency and reliability of storage device operation and maintenance are remarkably improved.