公开(公告)号：US11204872B2

公开(公告)日：2021-12-21

申请号：US16664088

申请日：2019-10-25

Applicant: EMC IP Holding Company LLC

Inventor： Rahul Ugale ,  Colin Zou

IPC: G06F12/0855 ,  G06F12/0842

Abstract: Embodiments are described for prioritizing input/output (I/O) operations dispatched to a solid-state device (SSD) storage in a network, determining properties of the SSD storage based on SSD device type, where the SSD storage maintains a plurality of caches, receiving a plurality of SSD I/Os from an application I/O request comprising at least one of a cache read or a cache write operation, creating a respective queue for each SSD I/O of the SSD I/Os based on a type of SSD I/O, prioritizing the each SSD I/O based on the type of the SSD I/O and the properties of the SSD storage that is the target for a respective SSD I/O, and dispatching, in a transactional I/O SSD scheduler, all queued SSD I/Os to the SSD storage based on the prioritizing.

公开(公告)号：US20210124683A1

公开(公告)日：2021-04-29

申请号：US16664088

申请日：2019-10-25

Applicant: EMC IP Holding Company LLC

Inventor： Rahul Ugale ,  Colin Zou

IPC: G06F12/0855 ,  G06F12/0842

Abstract: Embodiments are described for prioritizing input/output (I/O) operations dispatched to a solid-state device (SSD) storage in a network, determining properties of the SSD storage based on SSD device type, where the SSD storage maintains a plurality of caches, receiving a plurality of SSD I/Os from an application I/O request comprising at least one of a cache read or a cache write operation, creating a respective queue for each SSD I/O of the SSD I/Os based on a type of SSD I/O, prioritizing the each SSD I/O based on the type of the SSD I/O and the properties of the SSD storage that is the target for a respective SSD I/O, and dispatching, in a transactional I/O SSD scheduler, all queued SSD I/Os to the SSD storage based on the prioritizing.

公开(公告)号：US10229017B1

公开(公告)日：2019-03-12

申请号：US14872395

申请日：2015-10-01

Applicant: EMC IP Holding Company LLC

Inventor： Colin Zou ,  Cory Gu ,  Oliver Yang ,  Victor Li

IPC: G06F11/00 ,  G06F11/20

Abstract: Embodiments for systems and methods of resetting network devices for failover operation, by receiving an operating system panic function call, disabling error reporting for all device ports of a device to be reset to prevent primary interrupts to a disk dump operation, performing a function level reset of the all the device ports to be reset, and performing the reset operation on the device in a single thread context to prevent secondary interrupts to the disk dump process.