DiskStatus

@echo off
if "%1"=="" (goto fine) else (set disk=%1)
if "%2"=="" (
set status=online
) else if "%2"=="online" (
set status=online
) else if "%2"=="offline" (
set status=offline
) else (
set status=online
)
echo select disk %disk% >%temp%\DiskStatus.scp
echo %status% disk >>%temp%\DiskStatus.scp

DiskPart /s %temp%\DiskStatus.scp
del %temp%\DiskStatus.scp