A.mklv-tjfslog-yLVnameVGname1PVnamelogform\/dev\/LVname chfs-alog=\/dev\/LVname\/filesystemnamem ountandunmountfilesystem
B.mklv-tjfslog-yLVnameVGnamePVnameunmountfilesystemvi\/etc\/filesystems，changeentryforlvtopointfilesystemtonewJFSlogmountfilesystem
C.mklvcopy-ajfslog-yLVnameVGname1PVname chfs-alog=\/dev\/LVname\/filesystemname unmountandmountfilesystem
D.mklvcopy-tjfslog-yLVnameVGname1PVname logform\/dev\/LVname vi\/etc\/filesystems，changeentryforlvtopointfilesystemtonewJFSlog unmountandmountfilesystem
参考答案：A
