Comments on Dumping LVM2 logical volumes under FreeBSDhttp://romain.blogreen.org/blog/2007/08/dumping-lvm2-logical-volumes-under-freebsd/ Comment by Travis M.First of all, my homepage is low-bandwidth, so to download my files, please limit the download rate to 5KB/s before downloading.

I am interested in this project, but I am an amateur programmer, and am only a teen. I would like to use Linux LVM2 volumes under FreeBSD, with all the kernel support and usermode support you could have. After I finish The C Programming Language, 2nd Edition, I will see about working on this project. Since I do not know Calculus (and will not pretend to know it), how hard will this project be in math and programming skills?

Thanks,
Travis M.

]]>http://romain.blogreen.org/blog/2007/08/dumping-lvm2-logical-volumes-under-freebsd/#comment-1http://romain.blogreen.org/blog/2007/08/dumping-lvm2-logical-volumes-under-freebsd/#comment-1Sun, 13 Jan 2008 07:34:02 GMT Comment by Romain TartièreHi Travis,

If you dig into LVM, you will see that there is not a lot of calculus: the idea is basically to remap I/O access to a virtual device blocks to physical devices. The most complex thing is so to make this fit in the existing FreeBSD disk I/O transformation framework: GEOM.

As you can see, I started to play with GEOM and wrote about tasting. Unfortunately, things are staled since this post.

The good news is that some LVM2 support has been spoken about in the last FreeBSD Quarterly Status Report [2], and has even already been committed [3]!

References:

  1. http://romain.blogreen.org/Blog/Learning_GEOM_Tasting
  2. http://www.freebsd.org/news/status/report-2007-10-2007-12.html
  3. http://www.freebsd.org/cgi/cvsweb.cgi/src/sys/geom/linux_lvm/g_linux_lvm.c
]]>http://romain.blogreen.org/blog/2007/08/dumping-lvm2-logical-volumes-under-freebsd/#comment-2http://romain.blogreen.org/blog/2007/08/dumping-lvm2-logical-volumes-under-freebsd/#comment-2Wed, 20 Feb 2008 23:35:00 +0100