On Fri, Jan 25, 2013 at 12:29:22pm +0000, Alasdair G Kergon wrote: > On Fri, Jan 25, 2013 at 10:44:10AM +0200, Vangelis Koukis wrote: > > this seems to fit the bill perfectly, it's a shame it's > > not yet merged upstream. > > One of the reasons the zeroed target is not upstream is because, > although we thought it would be useful, we had nobody actually > asking to test and use it. > > If we bring it up-to-date and prepare to merge it upstream, would you > test it? > > Alasdair Dear Alasdair, this functionality is really useful, especially in VM provisioning scenarios. The need for this feature came through our work on the Synnefo cloud software [1]. We were already planning to contribute code to Ganeti [2], so it can allocate sparse LVs based on the snapshot feature. If the zeroed DM target makes it upstream, we'll implement support for it inside Ganeti and also propose it for inclusion upstream. Then I won't just be able to test it manually, we'll be running Ganeti burnin against it, and the number of potential testers will include users currently running Ganeti and Synnefo in production. Thanks, Vangelis. [1] http://www.synnefo.org [2] http://code.google.com/p/ganeti -- Vangelis Koukis vkoukis@grnet.gr OpenPGP public key ID: pub 1024D/1D038E97 2003-07-13 Vangelis Koukis <vkoukis@cslab.ece.ntua.gr> Key fingerprint = C5CD E02E 2C78 7C10 8A00 53D8 FBFC 3799 1D03 8E97 Only those who will risk going too far can possibly find out how far one can go. -- T.S. Eliot
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