On 11/09/2012 01:08 PM, Yehuda Sadeh wrote: > On Fri, Nov 9, 2012 at 11:04 AM, Josh Durgin <josh.durgin@xxxxxxxxxxx> wrote: >> On 11/09/2012 11:01 AM, Gregory Farnum wrote: >>> >>> I was asked today if there's a way to upgrade RBD volumes from v1 to >>> v2. I didn't think so, but wanted >>> 1) to make sure I'm right, >>> 2) to ask how hard it would be, >>> 3) to ask if we haven't done it because it didn't occur to us or >>> because it's too hard. >>> -Greg >>> >> >> This was addressed in the original discussions about format 2. >> >> You need to export and then import the volume as format 2. Format 2 uses >> different names for objects, so providing an 'upgrade' path would still >> require copying all the data around. >> > Couldn't we just set a flag in the header specifying the object naming > version, which would then only require updating the header? That's an interesting thought. A bit confusing, but only to the code... I think it's worth considering. -Alex > Yehuda > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
