1  chdrive
2.1  -use
2.2.1  unused
2.2.1  candidate
2.2.1  spare
2.2.1  failed
2.1 ? -allowdegraded
2.1  -task
2.2.1  format  
2.2.1  certify 
2.2.1  recover
2.2.1  erase
1