Engineering inputs

• It is still not clear if we'll be able to clone between different LUNs, but within likely will be

• There are not yet merged upstream patches for linux kernel piece

• The efforts are high since it require patching all of SCST, kernel and ZFS

Competition Analysis

• https://support.purestorage.com/bundle/m_user_guides_for_vmware_solutions/page/Solutions/VMware_Platform_Guide/User_Guides_for_VMware_Solutions/FlashArray_VMFS_RDM_VMware_Best_Practices_User_Guide/topics/concept/c_full_copy_or_hardware_accelerated_copy.html

What is the problem we are trying to solve?

• Speed up iSCSI operations that can use XCOPY, like cloning or migration

• Save storage space

User Story

• Customer is running an hypervisor like VMWare and he would like to clone a VM Image and expect the operation to be fast and do not take up more space than necessary. XCOPY with ZFS block cloning ensures the process is quick and no (reasonable) extra space is required.

Tasks