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Minimum LDEV
Capacity
Figure B-1
Idea of LDEV Capacity
External Volume
2,410,612,640 (Blocks)
1,610,612,640 (Blocks)
301983744 (LBA)
800,000,000 (Blocks)
200000000 (LBA)
Figure B-2
Example of How to Figure Out the Volume Capacity (In the
Case of OPEN-3)
Required Volume Capacity for each Emulation Type
Hitachi Universal Storage Platform V/VM Universal Volume Manager User's Guide
Control Information
Area Capacity
Minimum Data
Base Data Area
Area Capacity
Capacity
Mapped External
Volume
1,320,480 (Blocks)
3252864 (LBA)
When the capacity of the external volume is
this external volume is mapped with OPEN-3 emulation type,
800,000,000 (Blocks) of the volume cannot be used, because the
maximum volume of the OPEN-3 is
And
1,320,480
free space because the maximum number of LDEVs of base capacity
that can be defined with the OPEN-3 emulation type is 334. The free
space can be used if you set it using the VLL function.
Base LDEV
Capacity
LDEVs of
Mapped External Volume
1,610,612,640
(Blocks) of the mapped external volume becomes the
4,818,240 (Blocks)
4818240 (LBA)
334 LDEVs
(Blocks), and
2,410,612,640
(Blocks).
B-3
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