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Hitachi Travelstar 7K100
03.01.2006.
    « Prev  : Stranica 2 od 6 :  Next »      By ::  Krešimir Matanović 
- Hitachi Travelstar 7K100 -
7K100 serija dolazi u kapacitetima od 60, 80 i 100 gigabajta, sa SATA ili PATA sučeljem. Diskovi imaju po dvije ploče kapaciteta 50 GB, dok starija 5K100 serija ima ploče kapaciteta 40 GB. Obje serije diskova imaju 8 MB cachea, a 7K100 serija se hvali vremenom pristupa od 10 ms (5K100 je imala 12 ms). Naravno najveći napredak u odnosu na prošlu seriju je povećanje brzine rotacije sa 5400 na 7200 RPM, a time i smanjivanje prosječne rotacijske latencije sa 5.5 ms na 4.2 ms (zbog veće brzine rotacije porasla je razina buke, ali ne znatno). Kao što smo napisali pouzdanost i trajnost ovih diskova mora biti nešto veća nego kod onih 3.5-inčnih, pa tako oni mogu izdržati 600.000 ciklusa kretanja i stajanja. Potrošnja električne energije 7K100 se nešto povećala u odnosu na 5K100, a time je povećano i zagrijavanje.

Malen, a brz...

Deklarirana maksimalna brzina prijenosa podataka za Travelstar 7K100 u 60-gigabajtnoj verziji iznosi 561 Mbit/s, dok je za staru seriju iznosila 493 Mbit/s. Dimenzije diska su standardne za ovu klasu i iznose 100x70x9.5 mm (DxŠxV), a teži 115 g što je porast od 13 g u odnosu na testirani stariji model istog proizvođača.



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