https://communities.vmware.com/t5/Virtual-Disk-Development-Kit/VDDK-VixDiskLib-Clone-async-reads/m-p/2914146#M2361 <P>Hi.</P><P>I developed a backup tool based on VDDK which works great so far.I choose VixDiskLib_Clone call for backup as it gives the flexibility to have a standard vmdk file as backup result.</P><P>VDDK 6.7 introduced async read calls which noticeably increase backup speed via NBD transport mode, so the question is does the implementation of VixDiskLib_Clone internally make use of async read calls or is there any way to enable that?</P><P>This would be great as most of our customers could only make use of NBD and we try to get the most out of it performance wise.</P><P>If not are there any plans to implement this in future versions of the VDDK?</P><P>Thanks for any suggestions.</P> Thu, 16 Jun 2022 11:19:41 GMT goppi 2022-06-16T11:19:41Z https://communities.vmware.com/t5/Virtual-Disk-Development-Kit/VDDK-VixDiskLib-Clone-async-reads/m-p/2914146#M2361 <P>Hi.</P><P>I developed a backup tool based on VDDK which works great so far.I choose VixDiskLib_Clone call for backup as it gives the flexibility to have a standard vmdk file as backup result.</P><P>VDDK 6.7 introduced async read calls which noticeably increase backup speed via NBD transport mode, so the question is does the implementation of VixDiskLib_Clone internally make use of async read calls or is there any way to enable that?</P><P>This would be great as most of our customers could only make use of NBD and we try to get the most out of it performance wise.</P><P>If not are there any plans to implement this in future versions of the VDDK?</P><P>Thanks for any suggestions.</P> Thu, 16 Jun 2022 11:19:41 GMT https://communities.vmware.com/t5/Virtual-Disk-Development-Kit/VDDK-VixDiskLib-Clone-async-reads/m-p/2914146#M2361 goppi 2022-06-16T11:19:41Z