average seek time

Also found in: Acronyms.

average seek time

The mean time it takes to move the head of a disk drive from one track to another, averaged over the source and destination cylinders. Usually measured in milliseconds (ms).

The average seek time gives a good measure of the speed of the drive in a multi-user environment where successive read/write request are largely uncorrelated.

Ten ms is common for a hard disk and 200 ms for an eight-speed CD-ROM.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
References in periodicals archive ?
With 320GB(1) of storage, the drive's 4,200 rpm speed includes internal transfer rates of up to 976 Mbit/s using an average seek time of 12 milliseconds.
The drives have an average seek time of 15 milliseconds and a data transfer rate of 100MB/sec.
The 98-g component shows an average seek time of 16 ms, interface transfer rate of 1.5 Gb/s, rotational speed of 4,200 rpm, and an operating temperature range from -30[degrees]C to 85[degrees]C.
The MK2035GSS offers 200GB capacity, two platters, four heads, a 12msec average seek time, a data transfer rate of Serial ATA II 1.2/150Mb/s, a rotational speed of 4,200rpm and ATA-7 interface.
There are also fewer tradeoffs in average seek time and reliability in this approach.
-- Western Digital's WD Raptor Serial ATA hard drives deliver enterprise-class specifications with 10,000 RPM, as low as 4.2 milliseconds (ms) average seek time, and 1.2 million hours MTBF (Mean Time Between Failure.
The new hard drive offers systems builders and storage vendors enterprise-class specifications: 1.2 million hours MTBF (Mean Time Between Failure) and 10,000 RPM, 5.2 milliseconds (ms) average seek time.
In addition to its rotational speed of 7,200 rpm, the drive features an average seek time of 8.9 ms and a burst transfer rate of 35 MBps.
It features a sub-9.0 ms average seek time and a 2 MB cache buffer incorporating a high-speed 100 MHz SDRAM memory for high sustained transfer rate.
The largest model in the ZX achieves an average seek time of 5.3 ms, while the other three in the range (the 36GB, 18GB and 9GB versions), achieve an average of 4.9 ms.
The CD-R2x4 is one of the quickest dual-speed CD-R drives, Olympus says, with an average seek time of less than 214 ms.
And they will be able to obtain access to this data in the virtual blink of an eye, with 150 milliseconds average seek time.

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