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## ProtecTIER licensing tips 

This section contains tips regarding to the capacity licensing of ProtecTIER. The information described here was gathered from the most common questions that are associated with implementation of a ProtecTIER system. 

## Capacity representation in the ProtecTIER Manager GUI 

For more information, contact your IBM sales representative. 

The ProtecTIER Manager GUI displays capacity information in the following format: 

GLYPH<SM590000> A tebibyte (TiB) is defined as a multiple of the byte data unit. More specifically, 1 TiB equals 2$^{40 }$bytes or 1024 gibibytes (GiB), which equals 1 099 511 627 776 bytes. 

GLYPH<SM590000> A terabyte (TB) in contrast, is defined as 10$^{12 }$bytes, which equals 1 000 000 000 000 bytes. 

Both units of measurement are usually used as synonyms; however, knowing the exact values of both scales is important. It explains why 1TB is approximately 1.1 TiB and it also explains the numbers displayed by the ProtecTIER Manager GUI. 

Figure A-6 shows an example of capacity representation in the ProtecTIER Manager GUI. 

<img src='content_image/989708.jpg'>

