Date: Wed, 19 Oct 2005 11:14:19 -0700 From: darren david <darren@3x3x3.org> To: Matt Virus <mattvirus@gmail.com> Cc: freebsd <freebsd-questions@freebsd.org> Subject: Re: newfs options for .75TB RAID 5 unit Message-ID: <43568CFB.4000609@3x3x3.org> In-Reply-To: <43566C00.8000805@gmail.com> References: <4355FBD4.1080000@3x3x3.org> <43566C00.8000805@gmail.com>
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Matt Virus wrote: > darren david wrote: > >> hey all- >> >> in the somewhat pending case that i may not be able to retrieve my >> data from RAID 5 unit, I'm wondering what my best option is for >> blocksize on a .75TB RAID 5 volume. does the 64k RAID stripe size have >> any impact on these figures? It was previously set to the default( >> 16384 blocksize, 2048 fragment ) without any noticeable perf issues, >> but i'm just wondering if, well, size matters? ;) >> >> thanks, >> darren david >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to >> "freebsd-questions-unsubscribe@freebsd.org" >> > > You shouldn't have any problems. Read about tunefs if you wish, it may > help you. > > I have a 6x250gb array (1.25tb RAID5). FBSD 5.2.1 refused to support a > filesystem larger than 1.0tb, so i chunked it into 2 partitions to get > around that problem and then I mounted them back using mount_nullfs so > it appears as though all dirs are on the same partition in a single > directory. Not sure if the 1TB filesystem limit problem is unique to me > or not, but you will be fine with your .75tb no question. Coolness. What was /your/ blocksize for your filesystem, and why did you choose it? darren
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