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A hard disk head on an access arm resting on a hard disk platter. The access time or response time of a rotating drive is a measure of the time it takes before the drive can actually transfer data. The factors that control this time on a rotating drive are mostly related to the mechanical nature of the rotating disks and moving heads. It is ...
SPECsfs2008 is the latest version of the Standard Performance Evaluation Corporation benchmark suite measuring file server throughput and response time, providing a standardized method for comparing performance across different vendor platforms. EMC DSSD D5 Flash Up to [neutrality is disputed] 10 million IOPS [31] [non-primary source needed]
"By default, the total expected lifetime of a hard disk in perfect condition is defined as 5 years (running every day and night on all days). This is equal to 1825 days in 24/7 mode or 43800 hours." [ 43 ]
Windows, Unix-like (Linux, macOS, BSD, etc.) GNU GPL v2 CLI and GUI (via GSmartControl and HDD Guardian) All for Linux, some for other Unix-like See list of supported devices; [8] SAT driver required on macOS only [9] Several RAID controllers [10] Yes Yes window, sound, email, program execution at choosable parameter changes, threshold
In computer data storage, Smart Response Technology (SRT, also called SSD Caching before it was launched) is a proprietary caching mechanism introduced in 2011 by Intel for their Z68 chipset (for the Sandy Bridge–series processors), which allows a SATA solid-state drive (SSD) to function as cache for a (conventional, magnetic) hard disk drive (HDD).
Spin-up refers to the process of a hard disk drive or optical disc drive accelerating its platters or inserted optical disc from a stopped state to an operational speed. The required operational speed depends on the design of the disk drive. Typical speeds of hard disks have been 2400, 3600, 4200, 5400, 7200, 10000 and 15000 revolutions per ...
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A 2004 test with the first-generation NCQ drive (Seagate 7200.7 NCQ) found that while NCQ increased IOMeter performance, desktop application performance decreased. [6] One review in 2010 found improvements on the order of 9% (on average) with NCQ enabled in a series of Windows multitasking tests.