给分析一下，选哪个？

ydar

.A system admin\'s daily monitoring has revealed a failing disk drive.The drive that is failing,hdisk0 is a mirrored drive.what is the first step that should be taken in order to physically replace this drive?\r\na. remove the physical volume from the system\r\nb. remove the pv form the vg\r\nc. remove the pp from the vg\r\nd. remove the lv copies from the failing drive

ydar

正确的步骤应该是，首先unmirrorvg,然后再reducevg\r\n现在unmirrorvg的功能是不是d呢？