Vmware, Inc.

International Business Machines Corporation

Hemanth Kalluri

Anjaneya Prasad Gondi

Naveen Kumar Kalaskar

Mark Sean Fleming

Sanjay Vasudev Acharya

Shoby A Cherian

Jasmeer Kuppavilakom Abdulvahid

Marcus Armando Benedetto Campi

Jeffry Lynn Larson

Some embodiments provide a method of providing distributed storage services to a host computer from a network interface card (NIC) of the host computer. At the NIC, the method accesses a set of one or more external storages operating outside of the host computer through a shared port of the NIC that is not only used to access the set of external storages but also for forwarding packets not related to an external storage. In some embodiments, the method accesses the external storage set by using a network fabric storage driver that employs a network fabric storage protocol to access the external storage set. The method presents the external storage as a local storage of the host computer to a set of programs executing on the host computer. In some embodiments, the method presents the local storage by using a storage emulation layer on the NIC to create a local storage construct that presents the set of external storages as a local storage of the host computer.

Using physical and virtual functions associated with a NIC to access an external storage through network fabric driver

The disclosure provides an approach for accessing data stored in a page addressable memory by a first virtual computing instance (VCI) running on a host, the host running a virtualization layer configured to provide access to resources to the first VCI. The approach includes mapping by a flash translation layer (FTL) of the virtualization layer a first virtual address received in an I/O request from the first VCI directly to a physical page address (PPA) of the page addressable memory. The approach includes issuing an access request to the page addressable memory based on the I/O request, the access request comprising the PPA. The approach includes receiving data stored at the PPA from the page addressable memory. The approach includes passing the data to the first VCI.

Direct access flash transition layer

Embodiments detect and group multiple failure events to enable batch processing of those failure events, such as in a virtual datacenter executing a plurality of virtual machines (VMs). A long timer, adaptive short timer, and adaptive polling frequency enable a computing device to efficiently detect and group the failure events that may be related (e.g., resulting from one failure). The grouped failure events are processed in parallel thereby reducing the time for recovery from the failure events.

Grouping failure events with adaptive polling and sliding window buffering

Exemplary methods, apparatuses, and systems include a first virtual infrastructure management (VIM) server monitoring a first host device to determine if the first host device receives one or more messages within an interval of time from a first storage device indicating a failure of one or more logical disks within the first storage device. The first VIM server manages a first virtual datacenter including the first host device and the first storage device. A second VIM server manages a second virtual datacenter including a second host device and a second storage device. The logical disk is replicated on the second storage device. The first VIM server determines, that a plurality of virtual machines running on the first host device is dependent upon the logical disk(s). The first VIM server performs, in response to the dependency upon the logical disk, a failover of the virtual machines to the second host device.

High availability across geographically disjoint clusters

In one aspect of the present description, a connection between a predetermined input port and a predetermined output port is created in a partition of a VSAN switch, in which the connection is a destination address independent physical layer connection conforming to the physical layer of a communication protocol. Another connection between a plurality of input ports and a plurality of output ports may be created in another partition of the VSAN switch, in which the connection is a multi-layer connection which includes a network layer connection conforming to the network layer of the communication protocol. Other features and aspects may be realized, depending upon the particular application.

Multiple functionality in a virtual storage area network device

Provided are a method, system, and article of manufacture wherein a primary controller receives a request from a primary host to set reservations on a primary storage and a secondary storage, wherein the primary host, the primary controller and the primary storage are at a first site, and wherein a secondary host, a secondary controller, and the secondary storage are at a second site. The primary controller sets a first reservation on the secondary storage via a storage area network coupling the secondary storage to the primary controller, wherein the setting of the first reservation causes the secondary storage to be read only for a secondary host. The primary controller sets a second reservation on the primary storage, wherein the setting of the second reservation allows the primary host to perform read and write operations on the primary storage.

Growing community of inventors

San Jose, CA, United States of America

Hemanth Kalluri