<div dir="ltr">Hello<div><br></div><div>I have two qcow2 images uploaded to glance. One is CentOS 7 cloud image downloaded from <a href="http://centos.org">centos.org</a>. The other one is custom built using CentOS 7.DVD. When I create cinder volumes from them, volume creation from the custom built image it is very very slow.</div><div><br></div><div><br></div><div>CenOS qcow2:</div><div><br></div><div>
<p class="gmail-p1">2017-07-31 21:42:44.287 881609 INFO cinder.image.image_utils [req-ea2d7b12-ae9e-45b2-8b4b-ea8465497d5a e090e605170a778610438bfabad7aa7764d0a77ef520ae392e2b59074c9f88cf 490910c1d4e1486d8e3a62d7c0ae698e - d67a18e70dd9467db25b74d33feaad6d default] <b>Converted 8192.00 MB image at 253.19 MB/s</b></p><p class="gmail-p1"><br></p><p class="gmail-p1">Custom built qcow2:</p></div><div>
<p class="gmail-p1">INFO cinder.image.image_utils [req-032292d8-1500-474d-95c7-2e8424e2b864 e090e605170a778610438bfabad7aa7764d0a77ef520ae392e2b59074c9f88cf 490910c1d4e1486d8e3a62d7c0ae698e - d67a18e70dd9467db25b74d33feaad6d default] <b>Converted 10240.00 MB image at 32.22 MB/s</b></p><p class="gmail-p1"><br></p><p class="gmail-p1">I used the following command to create the qcow2 file</p><p class="gmail-p1">qemu-img create -f qcow2 custom.qcow2 10G<br></p><p class="gmail-p1"><br></p><p class="gmail-p1">What am I missing ?</p><p class="gmail-p1"><br></p><p class="gmail-p1">Thanks<br>Paras.</p><p class="gmail-p1"><br></p><p class="gmail-p1"><br></p></div></div>