A client partition has the rootvg disks mapped from two separate VIO servers. They are using AIX mirroring to provide redundancy on rootvg. One of the VIO servers was taken down for maintenance and is now back on-line. The client partitions now show Physical Partition Marked Stale in the errpt. Which of the following will most likely resolve the problem？（）

A. Run cfgmgr to re-scan the devices.
B. Run mkvdev on the VIO server to re-create the devices and re-mirror rootvg.
C. Run varyonvg rootvg to refresh the volume group.
D. Run syncvg on the rootvg to synchronize rootvg.