Date: Thu, 09 Dec 2010 13:00:51 -0800 From: Mike Carlson <carlson39@llnl.gov> To: freebsd-fs@freebsd.org Subject: Re: what is the best way to use free space on several boxes? Message-ID: <4D014383.2030702@llnl.gov> In-Reply-To: <20101209172058.DB2CD5B8B@mail.bitblocks.com> References: <20101209141412.GA62013@relay.ibs.dn.ua> <20101209172058.DB2CD5B8B@mail.bitblocks.com>
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On 12/09/2010 09:20 AM, Bakul Shah wrote: > On Thu, 09 Dec 2010 16:14:12 +0200 Zeus V Panchenko<zeus@ibs.dn.ua> wrote: >> Hi All, >> >> we have several FreeBSD 8-STABLE boxes, each has 2x500GB HDD in gmirror >> UFS dedicated >> >> but really it's used less than 30% each box ... >> >> so, advice please, what is the best/correct/right way to use the free >> space on the boxes? nfs? zfs? iscsi? >> >> the aim is to have storage place ... > This is probably more "researchy" than you want and this is > probably more suited to a much larger number of nodes but how > about some sort of a distributed hash table filesystem? Hash > a block address and map it to N different nodes. That way > you can add and remove boxes without having to reconfigure. > When a block is initially written, its `address' is computed > from its contents. One thing you have to worry about is that > the amount of available storage can change dynamically. > > Lots of useful information in the wikipedia entry for this. > > Even more researchy: even if you move such disks arround to > different nodes, or lose some disk blocks, the remaining data > on such disks can be reattached. A truly resilient storage > system. > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" > I had played around with MooseFS, which is available in the ports tree, in a small test environment. I would recommend looking at the project and seeing if that would suite your needs. http://www.moosefs.org/ Mike C
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