Host-based transfer of input-output operations from kernel space block device to user space block device
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.
說明書
While application 214 relies on IO load balancing and submission functionality 216 residing in the user space 210 for pathing and communication with the storage array 105, application 212, which utilizes kernel space-based IO load balancing and submission functionality 224, may not be able to interface with the IO load balancing and submission functionality 216 in the user space 210 since the kernel space-based components such as, e.g., the filesystem 222, IO load balancing and submission functionality 224 and HBA driver 226, are utilized for submitting the IO operations to the storage array 105.
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