Date: Mon, 7 May 2007 11:23:18 -0700 (PDT) From: Joerg t <tjoerg@yahoo.com> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: zfs and disk write cache Message-ID: <752873.95041.qm@web63709.mail.re1.yahoo.com>
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thanks for clarifying, Pawel! ----- Original Message ---- From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Joerg t <tjoerg@yahoo.com> Cc: freebsd-current <freebsd-current@freebsd.org> Sent: Monday, May 7, 2007 2:04:34 PM Subject: Re: zfs and disk write cache On Mon, May 07, 2007 at 09:34:20AM -0700, Joerg t wrote: > Does zfs on FreeBSD also disables the disk write cache like on Solaris if we give only a slice of the disk ? No. On Solaris write cache is disabled by default AFAIK, because of UFS, so ZFS on Solaris doesn't turn on write cache when it is configured on a slice, because another slice may have UFS. On FreeBSD write cache is enabled by default, so ZFS bascially doesn't touch it. -- Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! ____________________________________________________________________________________ Don't get soaked. Take a quick peak at the forecast with the Yahoo! Search weather shortcut. http://tools.search.yahoo.com/shortcuts/#loc_weather
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