Date: Wed, 6 Mar 2002 15:55:17 +0100 From: Cliff Sarginson <csfbsd@raggedclown.net> To: questions@FreeBSD.ORG Subject: Re: Softupdates on root in 4.5-RELEASE Message-ID: <20020306145517.GE4280@raggedclown.net> In-Reply-To: <20020306144816.C2BBFBA03@i8k.babbleon.org> References: <47615415@toto.iv> <15493.57118.414479.492155@guru.mired.org> <20020306143532.GC4280@raggedclown.net> <20020306144816.C2BBFBA03@i8k.babbleon.org>
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On Wed, Mar 06, 2002 at 09:48:16AM -0500, Brian T. Schellenberger wrote: > On Wednesday 06 March 2002 09:35 am, Cliff Sarginson wrote: > | On Wed, Mar 06, 2002 at 03:19:26AM -0600, Mike Meyer wrote: > | > I personally make the root partitoin larger, enable soft updates, and > | > use SCSI disks with proper tagged queuing support so the write cache > | > isn't a problem. > | > | Can you clarify this a bit. > | With a SCSI disk, tagged queuing etc, soft-updates are not helpful ? > | yes or no ? > > No. That is, they ARE helpful. > > But with tagged queuing on a SCSI disk, write caching isn't dangerous, so > there's no reason not to use it. > > With an IDE disk, write caching IS dangerous. > > Another advantage of SCSI. > Ok, so currently this BSD system runs off SCSI with soft-updates on everything, except root. Would you recommend that optimal performance would be achieved, without danger, by enabling write-caching as well ? And what would you recommend therefore with root, which has neither enabled at the moment ? -- Regards Cliff Sarginson -- <csfbsd@raggedclown.net> To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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