HP StorageWorks XP24000 for FlashCopy Mirroring Software User's Guide (T5240-96001, June 2007)

Table29ExamplesforCalculatingtheNumberofResourcesRequiredtoCreate
Version 2 Relationships
Copy
Patterns
Required Number of Resources
3380-3, 3390-3 3390-9 3390-L 3390-M
S-VOL T-VOL
Total
S-VOL T-VOL
Total
S-VOL T-VOL
Total
S-VOL T-VOL
Total
Copying
Data in
Two Extents
that do not
Overlap
(One
T-VOL)
See Figure 22
on
page 57.
1 1
2 3 3 6 9 9 18
17 17
34
Copying
Data in
Two Extents
that do not
Overlap (Two
T-VOLs)
See Figure 23
on
page 57.
1
2
(1 +
1)
3 3
6
(3+3)
9 9
18
(9 +
9)
27
17
34
(17 +
17)
51
Copying
Data in
Two Extents
that do not
Overlap (Two
S-VOLs)
See Figure 24
on
page 58.
2
(1 +
1)
1
3
6
(3+3)
3 9
18
(9 +
9)
9 27
34
(17 +
17)
17 51
Copying
Data in Three
Extents that
Overlap
(One
T-VOL)
See Figure 25
on
page 58.
3
(1 x
3)
1
4
9
(3 x
3)
3 12
27
(9 x
3)
9 36
51
(17 x
3)
17
68
Copying
Data in Two
Extents that
Overlap (Two
T-VOLs)
See Figure 26
on
page 58.
2
(1 x
2)
2
(1 +
1)
4
6
(2 x
3)
6
(3+3)
12
18
(9 x
2)
18
(9 +
9)
36
34
(17 x
2)
34
(17 +
17)
68
Copying One
Extent to
Another in the
Same Volume
See Figure 27
on
page 59.
2*
N/A
2 6*
N/A
6 18*
N/A
18
34*
N/A
34
Note*: Half is for the copy source extent, and the other half is for the copy target extent.
Notes:
• In the c ase of emulation type 3380-3 or 3390-3, the m aximum number of resources that can
be
used as an S-VOL is 16. You cannot establish any relationship if 16 resources are already
used in the S-VOL, and if the copy data range of relationships that are already established
overlap all the resources.
60
Preparing for V ersion 2 Operations