Date: Thu, 21 Nov 1996 12:15:12 -0800 (PST) From: Jaye Mathisen <mrcpu@cdsnet.net> To: michael butler <imb@scgt.oz.au> Cc: "Darrin R. Woods" <dwoods@netgazer.com>, hackers@freebsd.org Subject: Re: Disk Striping Message-ID: <Pine.NEB.3.95.961121121427.9350U-100000@mail.cdsnet.net> In-Reply-To: <199611210351.OAA03624@asstdc.scgt.oz.au>
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Uh, by definition, isn't striping spreading the load across spindles? I realize it's a tad more complicated than that, but the essence is the same. On Thu, 21 Nov 1996, michael butler wrote: > Date: Thu, 21 Nov 1996 14:51:56 +1100 (EST) > From: michael butler <imb@scgt.oz.au> > To: "Darrin R. Woods" <dwoods@netgazer.com> > Cc: hackers@freebsd.org > Subject: Re: Disk Striping > > Darrin R. Woods writes: > > > I just got my news server up and running INN (thanks to everyone that > > helped), but now I'm looking for a better way of dealing with it. I've got > > 3 Fast/Wide 4gb disks to hold news. It would be a lot easier (and better > > performance) if I could stripe (or span) the /var partition accross the 3 > > disks instead of having to guess as to how to partition each drive and into > > what sizes. > > With "only" three drives, you don't want to stripe across them. > > There are four activities which consume disk resources: > > i) maintenance of the active and history files > ii) maintenance of the overview hierarchy > iii) writing out the articles themselves > iv) scribbling to /var/log/news > > Whilst the latter is comparatively "cheap" as it simply extends an existing > file (writes deferred by caching), the first three are best spread across > separate spindles for the best resultant performance. Striping or > concatenation will hurt more than help, > > michael >
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