Example: determining capacity for open-3 volume – HP XP Racks User Manual
Page 18
Control Information Area
Capacity
Base Area Capacity
Minimum Data Area Capacity
Emulation Type
(Cylinders)
(Blocks)
(Cylinders)
(Blocks)
(Cylinders)
(Blocks)
-
12,960
-
3,661,920
-
72,000
OPEN-K
-
10,080
-
71,192,160
-
71,192,160
OPEN-L
-
0
-
8,589,934,592
-
96,000
OPEN-V
5
8,700
1,113
1,936,620
50
87,000
3390-1
Volume for
mainframe
systems
6
10,440
2,226
3,873,240
50
87,000
3390-2
6
10,440
3,339
5,809,860
50
87,000
3390-3
25
43,500
10,017
17,429,580
50
87,000
3390-9
23
40,020
32,760
57,002,400
50
87,000
3390-L
53
92,220
65,520
114,004,800
50
87,000
3390-M
7
12,180
262,668
457,042,320
1,113
1,936,620
3390-A
2
0
0
1,117,760
1,944,902,400
50
87,000
3390-V
6
10,440
3,339
5,809,860
50
87,000
3390-3A
Intermediate
volume
6
10,440
3,339
5,809,860
50
87,000
3390-3B
6
10,440
3,339
5,809,860
50
87,000
3390-3C
25
43,500
10,017
17,429,580
50
87,000
3390-9A
25
43,500
10,017
17,429,580
50
87,000
3390-9B
25
43,500
10,017
17,429,580
50
87,000
3390-9C
23
40,020
32,760
57,002,400
50
87,000
3390-LA
23
40,020
32,760
57,002,400
50
87,000
3390-LB
23
40,020
32,760
57,002,400
50
87,000
3390-LC
53
92,220
65,520
114,004,800
50
87,000
3390-MA
53
92,220
65,520
114,004,800
50
87,000
3390-MB
53
92,220
65,520
114,004,800
50
87,000
3390-MC
Note:
For 3390-A, the control information area is required for each 1,113 cylinders.
Example: Determining capacity for OPEN-3 volume
The following figure illustrates capacity for an external volume with OPEN-3 emulation type. The
capacity is 1,610,612,640 blocks. Using the data for OPEN-3 in
“LDEV capacities per emulation
, 334 LDEVS can be created from the base LDEV capacity of 4,818,240 blocks
(Base Data Area plus Control Information Area).
This results in 1,320,480 blocks of the mapped external volume becoming free space. LDEVs can
be created in free space using VLL.
18
Requirements and planning