HP XP24000/XP20000 for FlashCopy Mirroring Software User Guide (T5240-96012, November 2011)

Figure 36 Copying Data in Two Extents that Overlap (Two T-VOLs)
Figure 37 Copying One Extent to Another in the Same Volume
(page 67) provides calculation examples for the required resources according to the patterns
of copying.
Table 40 Referential Examples for Calculating the Number of Resources Required to Create Version 2
Relationships
Copy PatternsEmulation Type
Copying One
Extent to
Copying Data
in Two
Copying Data
in Three
Copying Data
in Two
Copying Data
in Two Extents
Copying Data
in Two
Another in the
Same Volume
Extents that
Overlap (Two
T-VOLs)
Extents that
Overlap (One
T-VOL)
Extents that
do not
Overlap (Two
S-VOLs)
that do not
Overlap (Two
T-VOLs)
See (page 66)
Extents that
do not
Overlap (One
T-VOL)
See (page 65)
See (page 67)
See (page 67)See (page 66)
See (page 66)
6
2
(3 x 2 =) 6(3 x 3 =) 9(3 +3 =) 633S-VOL3380-3 or
3390-3
1
N/A(3 +3 =) 633(3 +3 =) 63T-VOL
61212996Total
16
2
(8 x 2 =) 16(8 x 3 =) 24(8 + 8 =) 1688S-VOL3390-9
3
N/A(8 + 8 =) 1688(8 + 8 =) 168T-VOL
163232242416Total
50
2
(25 x 2 =) 50(25 x 3 =) 75(25+25 =) 502525S-VOL3390-L
4
N/A(25+25 =) 502525(25+25 =) 5025T-VOL
Calculating the Maximum Number of Version 2 Relationships 67