Date: Tue, 30 Apr 2002 13:01:28 -0400 From: James F.Hranicky <jfh@cise.ufl.edu> To: "Terry Lambert" <tlambert2@mindspring.com> Cc: bsder@allcaps.org, freebsd-fs@freebsd.org Subject: Re: Non-standard root filesystems Message-ID: <20020430130128.11428802.jfh@cise.ufl.edu> In-Reply-To: <3CCEC7D5.D22356A0@mindspring.com> References: <20020429153020.Q16532-100000@mail.allcaps.org> <3CCEC7D5.D22356A0@mindspring.com>
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On Tue, 30 Apr 2002 09:35:33 -0700 "Terry Lambert" <tlambert2@mindspring.com> wrote: > As far as software RAID is concerned: it's a bad idea, from a > performance perspective; I don't recommend it. Note that I'm > the person who did the original user space RAIDframe port to > FreeBSD in the mid 1990's, so I'm not just talking out my butt: > the amount of overhead for parity calculation and storage is > *considerable*, and makes RAID hardware a *much* better idea. Perhaps with RAID 5, but with 0+1 using vinum, wouldn't you see an increase with long enough plexes? Granted, it's more disks, but it may be cheaper than hardware RAID (or not, haven't looked in a while). Plus, just a simple two disk mirror for / wouldn't be all that bad, considering / shouldn't get heavy write traffic, right? ---------------------------------------------------------------------- | Jim Hranicky, Senior SysAdmin UF/CISE Department | | E314D CSE Building Phone (352) 392-1499 | | jfh@cise.ufl.edu http://www.cise.ufl.edu/~jfh | ---------------------------------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message
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