Date: Fri, 16 Oct 1998 11:32:57 -0500 From: peter@taronga.com (Peter da Silva) To: scsi@FreeBSD.ORG Subject: Re: filesystem safety and SCSI disk write caching Message-ID: <199810161632.LAA10179@bonkers.taronga.com> In-Reply-To: <199810141501.JAA04936@mt.sri.com> References: <199810140049.RAA20004@usr08.primenet.com><199810140518.XAA15040@pluto.plutotech.com>,<199810140518.XAA15040@pluto.plutotech.com>
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In article <199810141501.JAA04936@mt.sri.com>, Nate Williams <nate@mt.sri.com> wrote: >IMO, CAM should disable write caching by default, and allow people to >add it back by hand if they know how. I don't know how this would be >done, but it's *ALWAYS* a better idea to be safe than to be sorry. This seems like a no-brainer to me. Does write-caching actually improve performance measurably? I would have assumed that FreeBSD would do a better job than any drive could, and it certainly has more resources available. Write-caching always seemed to be one of those Windows-oriented optimizations that were better avoided with real operating systems... unless the write-cache is something like the 128MB battery-backed cache in our Storageworks RAID box down the hall from me. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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