Date: Fri, 11 Sep 1998 02:59:35 GMT From: mike@sentex.net (Mike Tancsa) To: grog@lemis.com (Greg Lehey) Cc: questions@FreeBSD.ORG Subject: Re: vinum (was Re: Software RAID) Message-ID: <35f8906d.173923869@mail.sentex.net> In-Reply-To: <19980910095452.K583@freebie.lemis.com> References: <19980910095452.K583@freebie.lemis.com>
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On Thu, 10 Sep 1998 09:54:52 +0930, in sentex.lists.freebsd.questions you wrote: >On Thursday, 10 September 1998 at 0:16:29 +0000, Mike Tancsa wrote: >> On Wed, 9 Sep 1998 18:27:49 +0930, in sentex.lists.freebsd.questions >> you wrote: >> >>> On Tuesday, 8 September 1998 at 1:37:49 +0000, Mike Tancsa wrote: >>>> On Mon, 07 Sep 1998 23:22:05 +0100, in sentex.lists.freebsd.questions >>>> you wrote: >>> Vinum will replace ccd. >> >> Would you say its ready for prime time in for example a new server >> environment ? > >Good question. The current state is still "alpha", and there's a lot >of stuff that still needs to be written, and other parts haven't been >tested to my satisfaction: for example, I'm not convinced that >recovering defective volumes on line works correctly in all cases. >It compares favourably to ccd, though: in ccd, if a you have a drive >failure, you have to modify your ccd config and reboot before you can >access a mirrored pair again. Vinum handles this transparently. Alpha,beta, release code are all relative terms... Working both in the NT world where "release code" is closer to a lot of 'beta' code in the FreeBSD world, I am willing to try :-) > >As far as reliability goes, a number of people have been using it >heavily for a month now, and I haven't had any problem reports in that >time (I *have* had reports of "works fine, no problems"). The main use would be on my news server spool... Although a real drag if the spool barfs, its not really the end of the world since it doesnt take long to fill up the drives again. I guess my main issue is that if I do hit a bad sector, do I have to blow away the whole spool ? >> Also, on my news server I have a few drives that are of different >> make and model. Last time I looked at ccd it was not reccomended to >> try and stripe drives of different sizes and performance specs. > >Hmm. I can't think why not. I dont recall the reasons either, but that generally seemed to be the consensus looking through old threads on ccd configuration and news servers from last year. > >> Also, how well does vinum cope with disk errors. I have one fuji >> thats somewhat prone to them... > . . >this problem, but due to the kernel structure it's relatively complex. >I'd expect it to be in by the end of the year, though. Hmmm.. I might wait a bit... Although not optimal, my multiple partition schemes seem to do the job for now. When I add another 8 gig drive to the new one I just added last week, I will perhaps try it then as there should not be any errors on these 2 drives any time soon. Thanks, ---Mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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