A.reboottheserverinmaintenancemode；migratevg-ynewvgoldvg；reboottheserverinnormalmode
B.unmountallfilesystemsinthevolumegroup；varyoffvgoldvg；migratepv-yoldvg-nnewvgvaryonvgnewvg
C.unmountallfilesystemsinthevolumegroup；varyoffvgoldvg；exportvgoldvg；importvg-ynewvghdisk1；mountall
D.unmountallfilesystemsinthevolumegroup；varyoffvgoldvg；foreachlogicalvolumeinthevolumegroupdocplv-voldvg-ynewvg；varyonvgnewvg；mountall
参考答案：C
