janpaulsmit wrote:'Normal' backup:
Backup size = C * (F*Data + R*D*Data) (every 2 hours 12 restore points)
Backup size = 50 * (11*5 + 12*1*5)= 8,8TB (approximately)
janpaulsmit wrote:backup copy:
Backup size = C * (F*Data + R*D*Data) (1 daily with 14 restore points, 4 week, 12 months, 5 years= (1+4+12+5) 22 full backups)
Backup size = 50 * (11*5 + 14*22*5)= 124TB (approximately)
For GFS retention this is more simple, you simply count 500Gb and multiply it for the number of restore points, since all of them are fulls. So, again in your case it will be 15 restore points, that is 7,5 TB for GFS.
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