hybrid drive

(redirected from Hybrid HDD)

hybrid drive

(1) An optical disc drive that supports more than one format. See Blu-ray.

(2) A storage drive with a small amount of solid state flash memory (SSD) and a large amount of hard disk. See solid state hybrid drive and Fusion Drive.

(3) A hard drive with a disk cache made of flash memory. If the next set of data called for by the computer is in the cache, the transfer is much faster than reading from the disk. The capacity of the flash cache is a small percentage of the drive's total space.

RAM Caches: DRAM and SRAM
Since the 1990s, hard drives have had a small dynamic RAM (DRAM) cache built in or on the controller. Because DRAM is faster than flash memory, hybrid drives generally use both DRAM and flash memory caches, and they may use static RAM (SRAM) instead of DRAM because SRAM is even faster. See cache, flash memory, solid state drive, dynamic RAM, static RAM, Robson cache and NV cache.
References in periodicals archive ?
Storage comes courtesy of a 508GB hybrid HDD - you get 500GB of HDD
The hybrid HDD leverages the benefits of ample data storage capacity with high-speed processing and quick OS startup that flash memory enables.
The U840 uses a standard processor but the hybrid HDD makes it slower than SSD Ultrabooks.
Bernard shares our vision of the unique and timely opportunity for our company to participate in the rapidly growing worldwide demand for advanced storage solutions to meet the flood of consumer and enterprise products requiring the use of magnetic and Flash media in Hybrid HDD, SSD and HDD sub-systems -- and where Link_A_Media is one of only three worldwide suppliers able to address this entire market," said Dr.
Equipped with the latest high-performance Intel Core i7-4900MQ vPro Processor and cutting-edge NVIDIA Kepler generation Quadro graphics, in addition to a hybrid HDD for high-speed booting and fast processing, the CELSIUS H730 enables an even higher performance work environment.
Our technology leadership for both magnetic and MLC Flash media uniquely positions us to address the emerging SoC needs of our HDD, SSD and Hybrid HDD OEM customers.
The new UltrabookO also boasts enhanced levels of computing performance, with on-board features such as the latest 4th-Generation Intel(R) Core(TM) i5-4200U Processor, as well as a 500GB hybrid HDD that enables quick startup for the OS as well as ample storage capacity for data.
Fast, capacious, and economical hybrid HDD and NAND flash storage solutions like the Momentus[R] XT drive will be found in roughly 25 percent of all new PCs shipped in 2015.
Forecasts for the hybrid HDD market to grow to 600 million units by 2016 to account for $34 billion in revenues
Prior approaches, including the Hybrid HDD and Intel's Turbo Memory or Robson failed due to faulty software support, an issue that is being addressed by Intel with the company's new Braidwood technology.
Test results showed great potential for hybrid HDD technology, but should we expect hybrid drives to outperform SSDs or traditional HDDs?
Elements of a standard HDD -- The DRAM cache -- Limitations of DRAM caches -- A NAND alternative -- NAND's nonvolatile advantage -- NAND's price advantage -- NAND as a cache for the HDD -- Intel's Turbo Memory alternative Benefits of the hybrid HDD -- Shock tolerance -- Power consumption -- Access speed -- Reliability -- Where the truth lies The role of software support -- Why a cache needs software support -- The "Instant-On" myth -- Issues with legacy -- Why will support take so long to materialize?