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.
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References in periodicals archive ?
The NCQ consists of 22 questions that measure eight variables and includes both Likert-scale and open-ended responses.
Seagate NCQ provides a number of advanced capabilities such as command reordering, first-party DMA, interrupt aggregation and race-free status return for multi-user system builders needing enhanced system-level performance for applications with transactional workloads.
It costs about $2,000 to put an NCQ through training for one year, said Chirita.
NCQ on a disc drive uses a similar approach to stage and move data commands with high efficiency.
NCQ stands for native command queuing and is designed to improve storage performance and reliability.
Native Command Queuing Support: NCQ is a widely anticipated feature introduced in the Serial ATA II extension to the Serial ATA 1.