// map header, size 6
	// string "id"
	o = append(o, 0x86, 0xa2, 0x69, 0x64)
	o = msgp.AppendString(o, z.DiskID)
	// string "v"
	o = append(o, 0xa1, 0x76)
	o = msgp.AppendString(o, z.Volume)
	// string "fp"
	o = append(o, 0xa2, 0x66, 0x70)
	o = msgp.AppendString(o, z.FilePath)
	// string "fdm"
	o = append(o, 0xa3, 0x66, 0x64, 0x6d)
	o = msgp.AppendBool(o, z.ForceDelMarker)
	// string "do"