/dev/disk0 
Samsung SSD 840 EVO 500GB 
Physical Block (sector) size: 512 bytes 
Using Block (sector) size: 512 bytes 
Total Number of Blocks:  
Total Disk Size:  
  
MBR Partition Entry 1: 00feffffeefeffff010000002f60383a 
MBR Partition Entry 2: 00000000000000000000000000000000 
MBR Partition Entry 3: 00000000000000000000000000000000 
MBR Partition Entry 4: 00000000000000000000000000000000 
  
Partition Map: GUID Partition Table 
Disk GUID:72871bac-a47e-4175-a0b6-2499ab34aacd 
Partition GUID: 9206a9a1-aff2-4849-9329-b9b904b628fe | Name: EFI System Partition 
Partition GUID: 2283b836-b4fc-4acd-8c6f-945f1b27465d | Name:  
Partition GUID: ccc29f1e-6dd5-4493-8556-e21dfe2b7cad | Name: Recovery HD 

=========  =========             ========              ==========  ========= 
LBA Start  Type                  GPT Name              LoaderCode  Size LBA 
=========  =========             ========              ==========  ========= 
0          MBR                                                     1 
1          Primary GPT Header                                      1 
2          Primary GPT Table                                       32 
34         Space                                                   6 
40         EFI System Partition  EFI System Partition  Apple EFI   409600 
409640     HFS+                                        973824416 
974234056  OSX Boot              Recovery HD                       2539072 
976773128  Space                                                   7 
976773135  Backup GPT Table                                        32 
976773167  Backup GPT Header                                       1 
