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  • Oliverda

    félisten

    válasz Bálnaborjú #4 üzenetére

    Kérdezd meg a WD-től, ott van az oldalukon a support elérhetősége. Minden kérdésért nem szoktak topikokat nyitogatni.

    "Minden negyedik-ötödik magyar funkcionális analfabéta – derült ki a nemzetközi felmérésekből."

  • FehérHolló

    veterán

    válasz Bálnaborjú #4 üzenetére

    Forrás: [link] - Egyébként nálam google második találat a fenti keresési kulcsokkal. Persze a találatok sorrendje nálad eltérhet.
    A linkelt cikk következő oldalán van a teszt.

    Advanced Format drives emulate a 512 byte sector size, to keep backwards compatibility intact, by mapping eight logical 512 byte sectors to a single physical sector. Unfortunately, this creates a problem for Windows XP users. By default, Windows XP creates a primary disk partition at LBA (logical block address) 63, which is one block short of being evenly divisible by eight. As a result of this offset, data is written across both sides of the 4K physical sector boundary. Read speeds and sequential write speeds aren't as badly impacted by the offset, but the impact on small and random writes is murderous.

    The good news is, Western Digital has already solved the problem. Those of you who want to use an AF drive in Windows XP can either install a hardware jumper (if you plan to use a single, simple partition) or run a software tool called WDAlign. Either solution will restore the drive's full write performance, but WDAlign is what you'll need to use if you've created multiple partitions on a single disk. For our test, we compared the performance of a Caviar Black 1TB (32MB cache, 7200 RPM), and an Advanced Format Caviar Green 1TB (64MB cache, 5400RPM) in 32-bit Windows XP. The Caviar Green was tested both properly aligned and unaligned to highlight the impact of not using WDAlign or setting the requisite jumper.

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    Skynet is real. It's called Google.

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