Scenario: customer is using hp p6300 iscsi with firmware 11001000 and the svmotion fails.
2012-09-04T01:30:38.234Z| Worker#0| DISKLIB-VMFS :Vmfs_MoveData : failed to move data (Device or resource busy:0x100009).
2012-09-04T01:30:38.240Z| Worker#0| DISKLIB-LIB : DiskLibCopyDataInt: Failed to copy using vmkernel data mover; failing the copy operation. Device or resource busy
2012-09-04T01:30:38.240Z| Worker#0| DISKLIB-LIB : DiskLibCopyDataInt failed with Device or resource busy.
2012-09-04T01:30:38.240Z| Worker#0| SVMotionMirroredMode: noticed migration failure, backing out of disk copy.
VMware HCL says that the firmware compatible is
11000000 but not 11001000 yet.
The problem turns out to be caused by an old iSCSI firmware module. This seems to be incompatible with the latest firmware XCS 11001000.
Original version for iSCSI module was 3_2_2_6
New version is 3_2_2_9Disable the VAAI from ESX(i) host and svmotion will work. upgrade the iscsi module, then enable the VAAI option again and the svmotion will still work.