Date: Tue, 12 Oct 2004 15:10:38 -0700 From: Roisin Murphy <Roisin.Murphy@gmail.com> To: "Kenneth D. Merry" <ken@freebsd.org> Cc: freebsd-hardware@freebsd.org Subject: Re: sata raid & write cache state Message-ID: <b21e6cca0410121510c110433@mail.gmail.com> In-Reply-To: <20041012215951.GA89335@nargothrond.kdm.org> References: <b21e6cca041010181932879aeb@mail.gmail.com> <20041011043508.GA72113@nargothrond.kdm.org> <b21e6cca041011090816a1352@mail.gmail.com> <20041011210303.GA78436@nargothrond.kdm.org> <b21e6cca04101117425d2908eb@mail.gmail.com> <20041012171106.GB86646@nargothrond.kdm.org> <b21e6cca0410121144420fe03b@mail.gmail.com> <20041012215951.GA89335@nargothrond.kdm.org>
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> Head to www.apc.com and look at the UPSes they have there. They're > basically lead acid batteries with inverters to put out A/C power when your > main power feed goes out. i meant the battery option they sell with some raid controllers, is this and extra little PSU, that also powers the disks for a while, or is this just meant to keep the raid controller's cache powered till the machine boots up again, so it can finish its cache flush?home | help
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