Date: Sun, 22 Feb 2004 11:34:49 +0100 From: Gabriel Ambuehl <gaml@buz.ch> To: Heinrich Rebehn <rebehn@ant.uni-bremen.de> Cc: questions@freebsd.org Subject: Re[2]: UNEXPECTED SOFTUPDATES INCONSISTENCY Message-ID: <1664802739.20040222113449@buz.ch> In-Reply-To: <40388FF1.4000004@ant.uni-bremen.de> References: <4037A0BB.8030807@ant.uni-bremen.de> <44n07c85md.fsf@be-well.ilk.org> <40388FF1.4000004@ant.uni-bremen.de>
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Hi Heinrich Rebehn, you wrote. >> Make sure you've disabled write caching on the drive firmware >> itself... HR> Does this also apply for RAID disks (twe)? Also, there is no word about HR> this in man tuning(7). Is this more of a guess or is softupdates HR> definately dangerous with wite cache enabled? I'd say it's the other way round: write cache is dangerous with softupdates. Softupdates itself is certainly better than no softupdates, even if it takes a slight performance drop by disabling write cache. I think you should disable the write cache on the 3ware cache (not sure whether there actually is one, mine don't come with any RAM sockets) anyway as you'll lose all data in there in the event of a crash. Regards, Gabriel
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