Hewlett-Packard Development Company, L.p.

Hewlett Packard Enterprise Development LP

Paul Miller

Aaron L Jenkins

Balaji Natrajan

Chiung-Sheng Wu

Techniques for allocation of storage volumes are described. Response times of a primary storage may be monitored to determine if the primary storage is input/output limited. A performance assist storage volume may be allocated and data replicated between the primary storage and the performance assist storage volume. Input/output requests may be distributed between the primary storage and the performance assist storage volume.

Performance assist storage volumes

A device to detect storage devices coupled to the device in response to receiving a query from a switch, include the storage devices in logical units, create virtual ports for the logical units, assign virtual addresses for the virtual ports, and send a response with the virtual addresses to switch.

Virtual address for virtual port

An example method for memory resource provisioning using SAS zoning can include a serial attached Small Computer System Interface (SCSI) (SAS) switch and a provisioning manager (PM) executing on the SAS switch. A plurality of servers are communicatively coupled to the SAS switch, each server executing an operating system (OS) having access to one or more OS volumes. A host provisioning agent (HPA) executes on the OS of each of the plurality of servers. A plurality of memory resources are communicatively coupled to the SAS switch. Each memory resource can have a number of physical hard drives. A first portion of the memory resources is associated with zone groups corresponding to the plurality of servers. A second portion of the memory resources is associated with a provisioning zone group (PZG) hidden from the plurality of servers but available to the PM.

Memory resource provisioning using SAS zoning

A method of power management for devices in a data storage fabric is disclosed. The data storage fabric includes a PHY having a first power condition and a second power condition coupled to a power condition independent device on the data storage fabric. The power condition independent device detects a change in the power configuration of the PHY from the first power condition to the second power condition. The power condition independent device then changes its power state to a comparable power state preselected to correspond with the second power condition.

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Houston, TX, United States of America

Paul Miller