Dell Products Inc.

Prasad Vishnu Paple

Kurumurthy Gokam

Kundan Kumar

Md Haris Iqbal

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 retrieve data corresponding to a plurality of processes for submitting a plurality of input-output operations to the at least one storage system, to identify one or more constraints on the plurality of processes based at least in part on the data; and to control submissions of the plurality of input-output operations to the at least one storage system based at least in part on the one or more constraints. The retrieval of the data, the identification of the one or more constraints and the control of the submissions are performed in a user space of the host device.

Management of input-output operations in user space

Host computers running applications that store data on a block-based storage system such as a SAN provide hints that differentiate IO data based on which application generated the IO. The hints may include tags that are associated with IO commands sent to the block-based storage system. Each host application is associated with a unique identifier that is placed in the tag. Application name-to-identifier mappings may be sent from the hosts to the block-based storage system. Per-identifier/application deduplication statistics are maintained by the block-based storage system and shared with other block-based storage system. Deduplication is disabled or de-emphasized for IO data generated by applications with statistically low deduplication ratios.

Growing community of inventors

Bengaluru, India

Prasad Vishnu Paple