IBM DS8800 Introduction And Planning Manual page 147

Table 39. Total physical capacity of each type of disk drive feature (continued)
Size of Disk Drives
300 GB
450 GB
600 GB
900 GB
3 TB
Rules specific to 239x Model LFA, OEL license (machine type
242x)
The operating environment license (OEL) must cover the full physical capacity of
your storage unit, which includes the physical capacity of any 95E expansion
models within the storage unit. The license must cover both open systems data
(fixed block data) and System z data (count key data). Standby CoD drives are not
included in this calculation.
Note: Your storage unit cannot be logically configured until you have activated the
OEL for it. Upon activation, disk drives can be logically configured up to the
extent of the IBM OEL authorization level.
You can combine feature codes to order the exact capacity that you need. For
example, if you determine that you need 25 TB of Metro Mirror capacity, you can
order two 7503 features (10 TB each) and one 7502 feature (5 TB each).
As you add additional disk drives to your storage unit, you must increase the OEL
authorization level for the storage unit by purchasing additional license features.
(Otherwise, you cannot logically configure the additional disk drives for use.)
When you activate Standby CoD disk drives, you must also increase the OEL
authorization to cover the activated Standby CoD capacity.
Rules specific to optional licensed functions
The following ordering rules apply when you order point-in-time licenses for
FlashCopy or remote mirror and copy licenses:
v If the function is used with only open systems data, a license is required for
only the total physical capacity that is logically configured as fixed block (FB).
v If the function is used with only System z data, a license is required for only the
total physical capacity that is logically configured as count key data (CKD).
v If the function is used for both open systems and System z data, a license is
required for the total configured capacity.
v You must use Fibre Channel host adapters with remote mirror and copy
functions. To see a current list of environments, configurations, networks, and
products that support remote mirror and copy functions, click Interoperability
Matrix at the following DS8000 website:
www.ibm.com/systems/support/storage/config/ssic
v You must purchase features for both the source (primary) and target (secondary)
DS8000 storage units.
v If you use the Metro/Global Mirror solution in your environment, the following
rules apply:
Total Physical Capacity
4800 GB
7200 GB
9600 GB
14,400 GB
24,000 TB
Chapter 5. Use of licensed functions
Disk drives per Feature
16
16
16
16
8
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