Date: Thu, 14 Jun 2001 21:48:33 +1000 From: Greg Lehey <grog@lemis.com> To: Douglas Egan <degan@calcon.net> Cc: freebsd-questions@FreeBSD.org Subject: Re: Softupdates and vinum Message-ID: <20010614214833.C1416@sydney.worldwide.lemis.com> In-Reply-To: <3B277D9E.764B659C@calcon.net>; from degan@calcon.net on Wed, Jun 13, 2001 at 09:50:06AM -0500 References: <3B277D9E.764B659C@calcon.net>
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On Wednesday, 13 June 2001 at 9:50:06 -0500, Douglas Egan wrote: > I remember looking at the raid implementation on Linux, and at the time > (kernel 2.2.17) ReiserFS and Raid were mutually exclusive and there > would be problems running ReiserFS on a raid volume. > > Does vinum and softupdates have the same issue? I suppose that depends on the issue. > I'm not sure if it even makes sense to run one on the other, but it > would be interesting to know. Soft updates and Vinum certainly are a good idea, and they seem to work well together. I don't know what the issue with ReiserFS and md was. I did hear from some Linux people recently where they noted that LVM (the Linux Logical Volume Manager which covers the remaining Vinum functionality) had trouble with ext2fs because it performs snapshots, but it doesn't have a hook into ext2fs to guarantee consistency. In FreeBSD, it's the file system (ufs) which performs the snapshots, so we don't have that issue. There are other reasons why Vinum should also support snapshots, but currently it doesn't. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply. For more information, see http://www.lemis.com/questions.html Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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