NCQ


Also found in: Acronyms.

NCQ

(Native Command Queuing) A feature of the SATA technology that reduces the number of read/write head movements in a hard disk. NCQ queues up read/write commands and executes them in the most efficient order.

Also for Solid State Drives (SSDs)
Command queuing is also used for SSDs because read and write instructions from the CPU can accumulate faster than even an SSD can handle them. The newer NVMe controller interface designed for SSDs increased the command queue an order of magnitude. While the common SATA/AHCI interface holds only 32 commands in one queue, NVMe supports 64K commands in 64K queues. See AHCI and NVMe.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
Mentioned in ?
References in periodicals archive ?
'Development of the NCQ is part of an international movement to place children as central to care delivery, which honours the United Nations Convention on the Rights of the Child,' said Mandie Foster, Professor at the Edith Cowan University in Australia.
Here, we essentially assume that [v.sub.2] of (anti)proton and (anti)neutron are the same as expected from the observed NCQ scaling of identified particle [v.sub.2] [41, 42].
Millionaire Raffle Selection: NCQ 170044 - one UK millionaire created.
Additional Features for WD RE4 2 TB Enterprise Hard DrivesWD RE4 drives feature 1.2 million hours MTBF, Active Power Saveao, enhanced RAFFao technology, multi-axis shock sensor, native command queuing (NCQ), pressure sensors, third generation dynamic fly height, time limited error recovery (TLER), and an extensive and enhanced testing process to ensure long-term reliability for demanding enterprise applications.
CEVA's advanced Enterprise SATA solution with Native Command Queuing (NCQ) acceleration substantially reduces software overhead in Freescale's communications processors and delivers the high-performance levels required for high bandwidth SOHO applications.
The S166 Series offers a 7,200rpm spin speed, 8MB buffer, SATA 3Gb/s interface and Native Command Queuing (NCQ) and are available with a PATA interface when required.
Second, he provides a specific tool (the NCQ, described below) that can also be used in the admissions process and in analyzing students' needs.
The WD Caviar family of 3.5-inch hard drives delivers high performance with 7,200 RPM spindle speed, 300 MB/s transfer rate, cache sizes up to 16 MB, and Native Command Queuing (NCQ); capacities ranging from 40 GB to 500 GB; and cool operating temperatures and quiet operation, which enable customers to integrate WD products in the most demanding environments.
(2002), and NCQ, A (2003a) have repeatedly found that "public reporters" performed at a higher level on nearly all HEDIS clinical performance and HEDIS CAHPS 2.0H survey items than those who do not allow public reporting of their results.
The MHV2200BT also features a hardware accelerator that maximizes Native Command Queuing (NCQ) performance, an important feature that enables the hard disk drive controller to intelligently and simultaneously queue and reorder up to 32 instructions, resulting in a significant improvement in overall hard disk drive performance.
Targeted at low-cost and Serial ATA (SATA) servers, mainstream and high-performance PCs, PC gaming systems and media PCs, the new Barracuda 7200.9 family combines up to a massive half-terabyte capacity with fast 3Gbit/second Serial ATA through put and leading-edge storage technologies such as Native Command Queuing (NCQ) to deliver the industry's highest levels of performance and reliability.