From: "MotoX" Subject: Re: optimal RAID configuration Date: 1998/09/09 Message-ID: <905352925.9329.0.nnrp-04.c2de712e@news.demon.co.uk>#1/1 X-NNTP-Posting-Host: pmcgettigan.demon.co.uk:194.222.113.46 References: <35F044B6.DADE7F91@a1.tch.harvard.edu> <35f05a90.3466604@news.skynet.be> <905153658.16189.0.nnrp-03.c2de712e@news.demon.co.uk> <6t3064$tpq$1@news01.btx.dtag.de> X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 X-Complaints-To: abuse@demon.net X-Trace: news.demon.co.uk 905352925 nnrp-04:9329 NO-IDENT pmcgettigan.demon.co.uk:194.222.113.46 Newsgroups: comp.databases.oracle.server With some 'high-end' systems like EMC you don't get the option... Matthias Gresz wrote in message <6t3064$tpq$1@news01.btx.dtag.de>... >MotoX schrieb: >> Er, *maybe*. Be careful. Many manufacturers use large caches to achieve the >> figures they quote, and many of these are not battery-backed. A power >> failure could completely screw up your db, so check before you buy/install. >> And a large db with large operations can easily negate the cache. > >Always use the write through otpion! Don't rely on batteries since you >don't know wether thy'll function when your system is running since 2 >years. What about peaks and noices on the power line? Can your battery >backup deal with this?