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Hard Disk Cache

OSR_Community_UserOSR_Community_User Member Posts: 110,217
Hi,

I have a question not related to file system driver development, but it is related to hard disks on Windows.
AFAIK the parameter "Enable write caching on the disk" at the hard disk properties enable write caching at disk level.
Under this parameter there is another parameter called "Enable advanced performance". I don?t how this parameter is used.

Does anyone know the difference between these two parameters?

Thanks!

-George

Comments

  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    Enable write cache: that ensures the read/write cache on the disk is enabled.
    Enable Advanced Performance: if you check that, Windows will omit flush cache requests sent to the disk. Since disk cache flush is used frequently by the registry, applications such as Outlook, if you have that checked the machine may not be able to boot when power failures occur, or you may corrupt your PST. It is intended only for machines with backup battery power or UPSes.

    -----Original Message-----
    From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com] On Behalf Of George Luiz Bittencourt
    Sent: Monday, May 11, 2009 6:00 AM
    To: Windows File Systems Devs Interest List
    Subject: [ntfsd] Hard Disk Cache

    Hi,

    I have a question not related to file system driver development, but it is related to hard disks on Windows.
    AFAIK the parameter "Enable write caching on the disk" at the hard disk properties enable write caching at disk level.
    Under this parameter there is another parameter called "Enable advanced performance". I don?t how this parameter is used.

    Does anyone know the difference between these two parameters?

    Thanks!

    -George


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