HP StoreOnce 4430 HP D2D Backup System Concepts guide (EH985-90915, March 2011 - Page 17

Table 6 Data deduplication savings, example 1, Space saving with deduplication

Get HP StoreOnce 4430 PDF manuals and user guides View all HP StoreOnce 4430 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 17 highlights

Table 6 Data deduplication savings, example 1 1st daily full backup 1st daily incremental backup 2nd daily incremental backup 3rd daily incremental backup 4th daily incremental backup 5th daily incremental backup 2nd weekly full backup 3rd weekly full backup 25th weekly full backup TOTAL Data stored normally 500 GB 50 GB 50 GB 50 GB 50 GB 50 GB 500 GB 500 GB 500 GB 12,750 GB Figure 4 Space saving with deduplication Data stored with deduplication 500 GB 5 GB 5 GB 5 GB 5 GB 5 GB 25 GB 25 GB 25 GB 1,125 GB Tape rotation example with data deduplication 17

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
Table 6 Data deduplication savings, example 1
Data stored with deduplication
Data stored normally
500 GB
500 GB
1st daily full backup
5 GB
50 GB
1st daily incremental backup
5 GB
50 GB
2nd daily incremental backup
5 GB
50 GB
3rd daily incremental backup
5 GB
50 GB
4th daily incremental backup
5 GB
50 GB
5th daily incremental backup
25 GB
500 GB
2nd weekly full backup
25 GB
500 GB
3rd weekly full backup
25 GB
500 GB
25th weekly full backup
1,125 GB
12,750 GB
TOTAL
Figure 4 Space saving with deduplication
Tape rotation example with data deduplication
17