From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Grover Date: Sat, 15 Dec 2012 18:27:01 -0800 Subject: master - python-lvm: Make second lv.snapshot() argument optional In-Reply-To: <50CCECF7.8000809@redhat.com> References: <20121214221108.E6D52137F@hosted02.fedoraproject.org> <50CCECF7.8000809@redhat.com> Message-ID: <50CD3175.5070803@redhat.com> List-Id: To: lvm-devel@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On 12/15/2012 01:34 PM, Zdenek Kabelac wrote: > Dne 14.12.2012 23:11, Andy Grover napsal(a): >> If no size is given, size defaults to 0, which in lvm_lv_snapshot will >> allocate extents equal to the original LV be allocated for the new >> snapshot. >> > > > Possibly not the ideal solution here. > > 1) we have some clash with command line 'API' > user creates snapshot of thin volume > - without giving size he get thin volume snaphost. > lvcreate -s > - with size specified he gets 'old' snapshot > (snapshot outside of the pool) > lvcreate -s -l|-L Makes sense. So should we do the same for the Python API -- size = None -> thin snap, size = >=0 -> 'old' snap with the given size? OR might we even be OK with just supporting 'new' snaps, and get rid of the size parameter altogether? Regards -- Andy