20 IBM Power 770 and 780 (9117-MMD, 9179-MHD) Technical Overview and Introduction
1.5 Disk and media features
Each system building block features two SAS DASD controllers with six hot-swappable
2.5-inch small form-factor (SFF) disk bays and one hot-plug, slim-line media bay per
enclosure. The SFF SAS disk drives and solid state drive (SSD) are supported internally. In
a full configuration with four connected building blocks, the combined system supports up to
24 disk bays. SAS drives and SSD drives can share the same backplane.
Table 1-9 shows the available disk drive feature codes that each bay can contain.
Table 1-9 Disk drive feature code description
FC 7377 N/A On/Off, 1 GB-1Day, Memory Billing POWER7+:
After the ON/OFF Memory function is enabled in a
system you must report the client’s on/off usage to IBM
on a monthly basis. This information is used to
compute IBM billing data. One FC 7377 feature must
be ordered for each billable day for each 1 GB
increment of POWER7+ memory that was used.
Note that inactive memory must be available in the
system for temporary use.
AIX
IBM i
Linux
Notes:
All POWER7+ memory features must be purchased with sufficient permanent memory activation
features so that the system memory is at least 50% active.
The minimum activations ordered with MES orders of memory features EM40, EM41, EM42, and
EM44 depend on the total installed capacity of features EM40, EM41, EM42, and EM44. This
allows newly ordered mem ory to be purchased with less than 50% activations when the
currently installed capacity exceeds 50% of the existing features EM40, EM41, EM42 and EM44
capacity.
The minimum activations ordered with all initial orders of memory features EM40, EM41, EM42,
and EM44 must be 50% of their installed capacity.
Moving memory: Memory CoD activations activate memory hardware only for the system
serial number for which they are purchased. If memory hardware is moved to another
system, the memory might not be functional in that system until arrangements are made to
move the memory activations or purchase additional memory activations.
Feature
code
Activation
capacity
Additional information OS
support
Feature
code
Description OS
support
1917 146 GB 15 K RPM SAS SFF-2 Disk Drive AIX, Linux
1886 146 GB 15 K RPM SFF SAS Disk Drive AIX, Linux
1775 177 GB SFF-1 SSD with eMLC AIX, Linux
1793 177 GB SFF-2 SSD with eMLC AIX, Linux
1995 177 GB SSD Module with eMLC AIX, Linux
1925 300 GB 10 K RPM SAS SFF-2 Disk Drive AIX, Linux
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