Specifications

Chapter 1. General description 21

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

#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 #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

Note:

򐂰 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 all initial orders of memory feature #5564 must be

192 GB of 256 GB per each feature #5564 ordered (that is, 75% of the installed feature

#5564 capacity).

Note: 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

#1886 146 GB 15 K RPM SFF SAS Disk Drive AIX, Linux

#1917 146 GB 15 K RPM SAS SFF-2 Disk Drive AIX, Linux

#1995 177 GB SSD Module with eMLC AIX, Linux

#1775 177 GB SFF-1 SSD with eMLC AIX, Linux

#1793 177 GB SFF-2 SSD with eMLC AIX, Linux

#1925 300 GB 10 K RPM SAS SFF-2 Disk Drive AIX, Linux

#1885 300 GB 10 K RPM SFF SAS Disk Drive AIX, Linux

#1880 300 GB 15 K RPM SAS SFF Disk Drive AIX, Linux

#1953 300 GB 15 K RPM SAS SFF-2 Disk Drive AIX, Linux