1) Swift doesn't yet currently support erasure codes. It's something we're actively working on now. 2) It depends. Swift will allow you to choose your EC algorithm and the parameters for it, so that will be what determines how much raw storage space is needed for a given amount of usable storage. --John On Aug 13, 2014, at 2:41 PM, Brent Troge <brenttroge2016 at gmail.com> wrote: > > With a 100% 'Erasure Code' policy how much extra storage is needed to satisfy a 1PB usable cluster ? > > > _______________________________________________ > Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack > Post to : openstack at lists.openstack.org > Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 801 bytes Desc: Message signed with OpenPGP using GPGMail URL: <http://lists.openstack.org/pipermail/openstack/attachments/20140813/ac300196/attachment.sig>