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Host-based transfer of input-output operations from kernel space block device to user space block device

專利號(hào)
US11175840B2
公開日期
2021-11-16
申請(qǐng)人
EMC IP Holding Company LLC(US MA Hopkinton)
發(fā)明人
Sanjib Mallick; Md Haris Iqbal; Kundan Kumar
IPC分類
G06F9/54; G06F3/06; G06F9/50
技術(shù)領(lǐng)域
io,storage,mpio,submission,kernel,balancing,space,host,array,in
地域: MA MA Hopkinton

摘要

An apparatus in one embodiment comprises a host device comprising a processor coupled to memory. The host device is configured to communicate over a network with at least one storage system. The host device is further configured to generate a user space block device and to generate a kernel space block device corresponding to the user space block device. The host device is further configured to receive an input-output operation at the kernel space block device from an application executing on the host device and to transfer the input-output operation from the kernel space block device to the corresponding user space block device. The host device is further configured to submit the input-output operation to the at least one storage system based at least in part on the user space block device.

說(shuō)明書

As another example, the storage array 105 may be used to implement one or more storage nodes in a cluster storage system comprising a plurality of storage nodes interconnected by one or more networks.

It should therefore be apparent that the term “storage array” as used herein is intended to be broadly construed, and may encompass multiple distinct instances of a commercially-available storage array. For example, the storage array 105 may comprise one or more storage arrays such as VNX?, VMAX?, Unity? or PowerMax? storage arrays, commercially available from Dell EMC.

Other types of storage products that can be used in implementing a given storage system in illustrative embodiments include software-defined storage, cloud storage, object-based storage and scale-out storage. Combinations of multiple ones of these and other storage types can also be used in implementing a given storage system in an illustrative embodiment.

These and other storage systems can be part of what is more generally referred to herein as a processing platform comprising one or more processing devices each comprising a processor coupled to a memory. A given such processing device may correspond to one or more virtual machines or other types of virtualization infrastructure such as Docker containers or other types of LXCs. As indicated above, communications between such elements of system 100 may take place over one or more networks.

權(quán)利要求

1
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