Date: Wed, 15 Sep 1999 19:54:49 +0200 From: Brad Knowles <blk@skynet.be> To: adhir@forumone.com, "'freebsd-stable@freebsd.org'" <freebsd-stable@freebsd.org> Subject: RE: Vinum performance testing... Message-ID: <v04205521b4058cbb4dbf@[195.238.1.121]> In-Reply-To: <D1E51FFB3744D311973A00104BD1D6BE0120C3@PLUTO> References: <D1E51FFB3744D311973A00104BD1D6BE0120C3@PLUTO>
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At 1:54 PM -0400 1999/9/15, Alok Dhir wrote: > I'd be curious to know how these results compare to a ccd stripe. That's something I hadn't considered testing before, but I'll add it to the list of things that should be tested this time around. Thanks! > On a related note, I tried vinum about a year and a half ago and did not > have a positive experience - mostly because the code was in flux - and I > wound up losing data. I had some preoblems with previous versions of the vinum code being rather brittle in the face of certain types of unusual configurations being fed to it. I haven't tried anything like that since, and I've run into relatively few problems with it in my testing so far. At the moment, I've got just one unexplained "wedge" of the system when I killed some rawio processes, and couldn't get logged in or do anything on the sessions where I was already logged in, and I ended up having to hit the reset button. Unfortunately, I wasn't able to capture a crash dump to see why that happened. > I'd like to move back to vinum since it > supports mirroring as well, and would like to get some feedback from > people running vinum in a high volume, production environment. I had been planning on giving it a shot on our Diablo/dreaderd news reader servers that I'm going to be setting up for our new distribute news server system, and if it didn't work out I'd have gone with hardware RAID controllers. However, with the results of the charts I've just produced, I'm much more inclined to not even bother considering hardware RAID controller cards, and to instead work to make vinum perform reliably, if I do run into any problems. -- These are my opinions -- not to be taken as official Skynet policy ____________________________________________________________________ |o| Brad Knowles, <blk@skynet.be> Belgacom Skynet NV/SA |o| |o| Systems Architect, News & FTP Admin Rue Col. Bourg, 124 |o| |o| Phone/Fax: +32-2-706.11.11/12.49 B-1140 Brussels |o| |o| http://www.skynet.be Belgium |o| \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ Unix is like a wigwam -- no Gates, no Windows, and an Apache inside. Unix is very user-friendly. It's just picky who its friends are. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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