Hi Alex Thank you for your reply. I just wanna make sure I'm not misunderstanding, virStorageVolGetXMLDesc & virStorageVolCreateXMLFrom together can do the clone process, am I right? Regards 2010-11-12 Lancer 发件人： Alex Jia 发送时间： 2010-11-10 13:28:21 收件人： 黄亮 抄送： libvir-list 主题： Re: [libvirt] Is there an API for clone? Hi lancer, As Osier said, libvirt hasn't a independent API for cloning an existing guest, instead of using virStorageVolGetXMLDesc API to get a guest volume xml description and then calling virStorageVolCreateXMLFrom API to clone a new volume. For python-virtinst component, you may use virt-clone to implement this, for libvirt component, you may directly use python binding API or virsh tool 'vol-clone' to implement it. I hope it's helpful for you. - Alex ----- Original Message ----- From: "黄亮" <lancerhuang(a)163.com&gt; To: "libvir-list" <libvir-list(a)redhat.com&gt; Sent: Wednesday, November 10, 2010 9:30:28 AM GMT +08:00 Beijing / Chongqing / Hong Kong / Urumqi Subject: [libvirt] Is there an API for clone? Hi, guys I know there is a command "virt-clone", but I couldn't find the equivalent API here : http://libvirt.org/html/libvirt-libvirt.html So, is there an API to clone an existing VM or not? Thank you! Regards 2010-11-10 Lancer -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list __________ Information from ESET Smart Security, version of virus signature database 5605 (20101109) __________ The message was checked by ESET Smart Security. http://www.eset.com

Hi Alex, Thanks for your flow chart. But I'm stuck in getting Storage Pool here. I try to get StoragePoolPtr by using something like int num = virConnectNumOfStoragePools( conn ); it truns out num = 0; I think I missed something and missunderstand the Storage Pool & Storage Volume. So I refer to the http://libvirt.org/archstorage.html and http://libvirt.org/guide/html/ , but guide book about storage is in status "TBD". So, is there some tutorial or guideline I can follow to get the Storage Ptr and then get the XML description and finally clone one? Thank you Regards 2010-11-14 Lancer 发件人： ajia 发送时间： 2010-11-12 10:40:27 收件人： 黄亮 抄送： libvir-list 主题： Re: [libvirt] Is there an API for clone? On 11/12/2010 02:07 AM, 黄亮 wrote: Hi Alex Thank you for your reply. I just wanna make sure I'm not misunderstanding, virStorageVolGetXMLDesc & virStorageVolCreateXMLFrom together can do the clone process, am I right? In fact, libvirt will call a group of APIs to complete vol-clone operation, you can track the whole calling process, it looks like this: virsh vol-clone <vol-key> <newname> | V virConnectOpenAuth | V virStorageVolLookupByKey | V virStoragePoolLookupByVolume ('default' is default pool) | V virStorageVolGetXMLDesc | V virStorageVolCreateXMLFrom | V virStorageVolGetName (twice) | V virStorageVolFree (twice) | V virStoragePoolFree | V virConnectClose Alex Regards 2010-11-12 Lancer 发件人： Alex Jia 发送时间： 2010-11-10 13:28:21 收件人： 黄亮 抄送： libvir-list 主题： Re: [libvirt] Is there an API for clone? Hi lancer, As Osier said, libvirt hasn't a independent API for cloning an existing guest, instead of using virStorageVolGetXMLDesc API to get a guest volume xml description and then calling virStorageVolCreateXMLFrom API to clone a new volume. For python-virtinst component, you may use virt-clone to implement this, for libvirt component, you may directly use python binding API or virsh tool 'vol-clone' to implement it. I hope it's helpful for you. - Alex ----- Original Message ----- From: "黄亮" <lancerhuang(a)163.com&gt; To: "libvir-list" <libvir-list(a)redhat.com&gt; Sent: Wednesday, November 10, 2010 9:30:28 AM GMT +08:00 Beijing / Chongqing / Hong Kong / Urumqi Subject: [libvirt] Is there an API for clone? Hi, guys I know there is a command "virt-clone", but I couldn't find the equivalent API here : http://libvirt.org/html/libvirt-libvirt.html So, is there an API to clone an existing VM or not? Thank you! Regards 2010-11-10 Lancer -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list __________ Information from ESET Smart Security, version of virus signature database 5605 (20101109) __________ The message was checked by ESET Smart Security. http://www.eset.com __________ Information from ESET Smart Security, version of virus signature database 5612 (20101111) __________ The message was checked by ESET Smart Security. http://www.eset.com