130 results about "Full virtualization" patented technology

Systems and methods for performing snapshots in a storage environment employing distributed block virtualization. In one embodiment, the system may include a volume server, a first and a second host computer system, and a plurality of physical block devices. The volume server may be configured to aggregate storage in the plurality of physical block devices into a plurality of logical volumes, where a particular logical volume includes storage from at least two physical block devices. The volume server may further be configured to make a first and a second subset of the logical volumes available to the first and second host computer systems for input / output, respectively. The first subset and the second subset may be at least partially nonoverlapping, and a second logical volume may be configured to store a snapshot of data stored in a first logical volume logical volume.

Systems and methods for virtualization and emulation assisted malware detection are described. In some embodiments, a method comprises intercepting an object; instantiating and processing the object in a virtualization environment; tracing operations of the object while processing within the virtualization environment; detecting suspicious behavior associated with the object; instantiating an emulation environment in response to the detected suspicious behavior; processing, recording responses to, and tracing operations of the object within the emulation environment; detecting a divergence between the traced operations of the object within the virtualization environment to the traced operations of the object within the emulation environment; re-instantiating the virtualization environment; providing the recorded response from the emulation environment to the object in the virtualization environment; monitoring the operations of the object within the re-instantiation of the virtualization environment; identifying untrusted actions from the monitored operations; and generating a report regarding the identified untrusted actions of the object.

In a first embodiment of the present invention, a method for multi-root sharing of a plurality of single root input / output virtualization (SR-IOV) endpoints is provided, the method comprising: CSR redirection to a management processor which either acts as a proxy to execute the CSR request on behalf of the host or filters it and performs an alternate action, downstream routing of memory mapped I / O request packets through the switch in the host's address space and address translation with VF BAR granularity, upstream routing of requests originated by I / O devices by table lookup indexed by Requester ID, and requester ID translation using a fixed local-global RID offset.

The present invention is a method for providing address decode and Virtual Function (VF) migration support in a Peripheral Component Interconnect Express (PCIE) multi-root Input / Output Virtualization (IOV) environment. The method may include receiving a Transaction Layer Packet (TLP) from the PCIE multi-root IOV environment. The method may further include comparing a destination address of the TLP with a plurality of base address values stored in a Content Addressable Memory (CAM), each base address value being associated with a Virtual Function (VF), each VF being associated with a Physical Function (PF). The method may further include when a base address value included in the plurality of base address values matches the destination address of the TLP, providing the matching base address value to the PCIE multi-root IOV environment by outputting from the CAM the matching base address value. The method may further include constructing a requestor ID for the VF associated with the matching base address value, the requestor ID being based upon the output matching base address value and a bus number for a PF which owns the CAM.

A system integrates an intelligent storage switch with a flexible virtualization system to enable efficient service of file and block protocol data access requests for information stored on the system. A storage operating system executing on a storage system coupled to the switch implements the virtualization system to provide a unified view of storage to clients by logically organizing the information as named files, directories and logical unit numbers. The virtualization system is illustratively embodied as a file system having a write allocator configured to provide a flexible block numbering policy that addresses volume management capabilities, such as storage virtualization, at a finer granularity (e.g., a single block) than that of previous non-flexible storage virtualization schemes. The flexible block numbering policy also yields substantial benefits in terms of increased write efficiency and elimination of storage “hot spots”, as well as a compelling point-in-time read-only data image (snapshot) mechanism.