root@datavault:/tmp# parted
GNU Parted 2.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) select /dev/md4
Using /dev/md4
(parted) ls                                                               
  align-check TYPE N                        check partition N for TYPE(min|opt) alignment
  check NUMBER                             do a simple check on the file system
  cp [FROM-DEVICE] FROM-NUMBER TO-NUMBER   copy file system to another partition
  help [COMMAND]                           print general help, or help on COMMAND
  mklabel,mktable LABEL-TYPE               create a new disklabel (partition table)
  mkfs NUMBER FS-TYPE                      make a FS-TYPE file system on partition NUMBER
  mkpart PART-TYPE [FS-TYPE] START END     make a partition
  mkpartfs PART-TYPE FS-TYPE START END     make a partition with a file system
  move NUMBER START END                    move partition NUMBER
  name NUMBER NAME                         name partition NUMBER as NAME
  print [devices|free|list,all|NUMBER]     display the partition table, available devices, free space, all found partitions, or a particular partition
  quit                                     exit program
  rescue START END                         rescue a lost partition near START and END
  resize NUMBER START END                  resize partition NUMBER and its file system
  rm NUMBER                                delete partition NUMBER
  select DEVICE                            choose the device to edit
  set NUMBER FLAG STATE                    change the FLAG on partition NUMBER
  toggle [NUMBER [FLAG]]                   toggle the state of FLAG on partition NUMBER
  unit UNIT                                set the default unit to UNIT
  version                                  display the version number and copyright information of GNU Parted
(parted) print                                                            
Model: Linux Software RAID Array (md)
Disk /dev/md4: 12.0TB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name           Flags
 1      2097kB  12.0TB  12.0TB               ReplayStorage

(parted) rm 1                                                             
(parted) unit mib
(parted) mkpart                                                           
Partition name?  []? ReplayStorage                                        
File system type?  [ext2]?                                                
Start? 2mib
End? 9000mib
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? ignore                                                     
(parted) print                                                            
Model: Linux Software RAID Array (md)
Disk /dev/md4: 11446374MiB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start    End      Size     File system  Name           Flags
 1      2.00MiB  9000MiB  8998MiB               ReplayStorage

(parted) rm 1                                                             
(parted) mkpart                                                           
Partition name?  []? ReplayStore                                          
File system type?  [ext2]?                                                
Start? 2mib                                                               
End? 9500mib                                                              
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? ignore                                                     
(parted) mkpart                                                           
Partition name?  []? VDR-Storage
File system type?  [ext2]?                                                
Start? 9500mib                                                            
End? -1
Warning: The resulting partition is not properly aligned for best performance.
Ignore/Cancel? ignore                                                     
(parted) prin                                                             
Model: Linux Software RAID Array (md)
Disk /dev/md4: 11446374MiB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start    End          Size         File system  Name         Flags
 1      2.00MiB  9500MiB      9498MiB                   ReplayStore
 2      9500MiB  11446374MiB  11436874MiB               VDR-Storage