IBM Power 750 - Disk and Media Features

18 IBM Power 750 and 760 Technical Overview and Introduction
Different memory feature codes can be mixed on each of the two memory riser cards
associated with each DCM. Likewise, riser cards on multiple processor DCMs can have the
same or different memory features.
For better performance, two guidelines are important:
򐂰 Be sure that the quantity of DIMMs are evenly distributed across each of the riser cards.
򐂰 Be sure that the total quantity of GB on each riser card is balanced as evenly as possible.
Where possible, avoid having one riser card with more than twice the gigabytes of another
riser card on the server.
These are general performance guidelines, not mandatory configuration rules. The first
guideline is typically more significant than the second guideline.
The eight DIMM slots in a riser card are labeled C1, C2, C3, C4, C5, C6, C7, and C8. DIMM
placement rules are as follows:
򐂰 The DIMMs in C1 and C3 must be identical. Similarly the DIMMs in C2 and C4 must be
identical and C5 and C7 must be identical and C6 and C8 must be identical.
򐂰 The four DIMMs, if present in C1, C2, C3, and C4, must be identical in a riser card. The
four DIMMs, if present in C5, C6, C7, and C8, must be identical in a riser card.
Plans for future memory upgrades should be taken into account when deciding which
memory feature size to use at the time of initial system order.
1.6 Disk and media features
The Power 750 and the Power 760 system unit includes six SFF SAS bays. This offers up to
5.4 TB HDD capacity or up to 3.6 TB SSD capacity. All SAS disks and SSD drives are
2.5-inch SFF and hot swappable. The six SAS SFF bays can be split into two sets of three
bays for additional configuration flexibility using just the integrated SAS adapters.
Table 1-9 shows the available disk drive feature codes that each bay can contain.
Table 1-9 Disk drive feature code description
Feature
code
CCIN Description OS
support
1886 146 GB 15K RPM SFF SAS Disk Drive AIX, Linux
1917 146 GB 15K RPM SAS SFF-2 Disk Drive AIX, Linux
1775 177 GB SFF SSD with eMLC AIX, Linux
1793 177 GB SFF-2 SSD with eMLC AIX, Linux
1995 177 GB SSD Module with eMLC AIX, Linux
1885 300 GB 10K RPM SFF SAS Disk Drive AIX, Linux
1925 300 GB 10K RPM SAS SFF-2 Disk Drive AIX, Linux
1880 169C 300 GB 15K RPM SAS SFF Disk Drive AIX, Linux
1953 300 GB 15K RPM SAS SFF-2 Disk Drive AIX, Linux
ES02 387 GB 1.8 inch SAS SSD for AIX and Linux with eMLC AIX, Linux
ES0A 387 GB SFF SSD with eMLC AIX, Linux