Date: Mon, 22 Mar 2010 20:13:44 +0200 From: Dan Naumov <dan.naumov@gmail.com> To: freebsd-questions@freebsd.org Subject: RE: 12 TB Disk In freebsd AMD 64 ? Message-ID: <cf9b1ee01003221113l5414a92dxdc77bdaaed15922d@mail.gmail.com>
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MBR can only work with 2TB volumes, however, we are no longer limited to MBR. With GPT, we can have really really big volumes. That being said, I really don't think you should be using a single 12TB volume with UFS, even if you have underlying redundancy provided by a hardware raid device. Have you ever had to fsck a 2TB volume or bigger? It's not fun. My recommendation would be to use ZFS. Use it to manage your array and filesystems and use it on top of individual raw disk devices, if you must use your raid controller, use it in JBOD mode. If you want a relatively technical introduction to ZFS and why it's good for you, read up here: http://www.slideshare.net/relling/zfs-tutorial-usenix-june-2009 - Sincerely, Dan Naumov
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