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17344results about "Memory architecture accessing/allocation" patented technology

High speed memory control and I/O processor system

An input/output processor for speeding the input/output and memory access operations for a processor is presented. The key idea of an input/output processor is to functionally divide input/output and memory access operations tasks into a compute intensive part that is handled by the processor and an I/O or memory intensive part that is then handled by the input/output processor. An input/output processor is designed by analyzing common input/output and memory access patterns and implementing methods tailored to efficiently handle those commonly occurring patterns. One technique that an input/output processor may use is to divide memory tasks into high frequency or high-availability components and low frequency or low-availability components. After dividing a memory task in such a manner, the input/output processor then uses high-speed memory (such as SRAM) to store the high frequency and high-availability components and a slower-speed memory (such as commodity DRAM) to store the low frequency and low-availability components. Another technique used by the input/output processor is to allocate memory in such a manner that all memory bank conflicts are eliminated. By eliminating any possible memory bank conflicts, the maximum random access performance of DRAM memory technology can be achieved.
Owner:CISCO TECH INC

System and method for secure and reliable multi-cloud data replication

A multi-cloud data replication method includes providing a data replication cluster comprising at least a first host node and at least a first online storage cloud. The first host node is connected to the first online storage cloud via a network and comprises a server, a cloud array application and a local cache. The local cache comprises a buffer and a first storage volume comprising data cached in one or more buffer blocks of the local cache's buffer. Next, requesting authorization to perform cache flush of the cached first storage volume data to the first online storage cloud. Upon receiving approval of the authorization, encrypting the cached first storage volume data in each of the one or more buffer blocks with a data private key. Next, assigning metadata comprising at lest a unique identifier to each of the one or more buffer blocks and then encrypting the metadata with a metadata private key. Next, transmitting the one or more buffer blocks with the encrypted first storage volume data to the first online cloud storage. Next, creating a sequence of updates of the metadata, encrypting the sequence with the metadata private key and then transmitting the sequence of metadata updates to the first online storage cloud.
Owner:EMC IP HLDG CO LLC

System and method for secure and reliable multi-cloud data replication

A multi-cloud data replication method includes providing a data replication cluster comprising at least a first host node and at least a first online storage cloud. The first host node is connected to the first online storage cloud via a network and comprises a server, a cloud array application and a local cache. The local cache comprises a buffer and a first storage volume comprising data cached in one or more buffer blocks of the local cache's buffer. Next, requesting authorization to perform cache flush of the cached first storage volume data to the first online storage cloud. Upon receiving approval of the authorization, encrypting the cached first storage volume data in each of the one or more buffer blocks with a data private key. Next, assigning metadata comprising at lest a unique identifier to each of the one or more buffer blocks and then encrypting the metadata with a metadata private key. Next, transmitting the one or more buffer blocks with the encrypted first storage volume data to the first online cloud storage. Next, creating a sequence of updates of the metadata, encrypting the sequence with the metadata private key and then transmitting the sequence of metadata updates to the first online storage cloud.
Owner:EMC IP HLDG CO LLC
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