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Attention: While installing the coprocessor, observe the following precautions:
v The coprocessor is always powered by the batteries, even when it is not installed in the system.
v The battery power is necessary to keep the coprocessor operational.
v The loss of battery power or a voltage drop triggers a tamper event and permanently renders
the coprocessor inoperable.
v Any short on the battery power distribution circuits causes a voltage drop and a tamper event.
v Do not lay the coprocessor on or cause the coprocessor to come in contact with any conductive
surface.
v Do not strike the coprocessor circuits with metal or conductive tools.
v Use static-protective measures at all times when handling the coprocessor.
PCIe RAID and SSD SAS adapter 3 Gb (FC 2054; CCIN 57CD)
Learn about the specifications and operating system requirements for the 2054 adapter.
Overview
The PCIe-based solid-state drive (SSD) offering consists of a SAS PCIe adapter and an SSD module. The
RAID and SSD SAS adapter is a double-wide, low-profile, short PCIe 8x adapter that requires two
adjacent PCIe slots. You can plug one, two, or four SSD modules directly onto the adapter and avoid
using any SFF or 3.5 inch SAS bays or any cabling to SAS disk enclosures.
PCIe RAID and SSD SAS Adapter 3 Gb (FC 2054) designates a low-profile PCIe adapter with a tail stock
adapter for full-height slots to be used in the IBM Power 720 Express, IBM Power 740 Express, and IBM
Power 750 Express systems.
PCIe RAID and SSD SAS Adapter 3 Gb with Blind Swap Cassette (FC 2055) designates that the PCIe
adapter is in a double-wide blind swap cassette for use in a 12X-attached 5802/5877 PCIe I/O drawer.
Though it is physically the same SSD module, two feature codes are used to describe the different
operating system environments. The following are the two codes that enable the IBM configurator tools
to track the different SSD protection rules that are associated with the AIX, IBM i, and Linux operating
systems:
v 177 GB SSD Module with enterprise multi-level cell (EMLC) (AIX or Linux) is FC 1995
v 177 GB SSD Module with EMLC (IBM i) is FC 1996
There are multiple configuration options that provide SSD protection and redundancy. If you want
redundancy at an adapter level, you can mirror the SSD module of one PCIe RAID and SSD SAS Adapter
against the SSD module of another PCIe RAID and SSD SAS Adapter using the IBM AIX, IBM i, or Linux
operating system. This is recommended because there is no write cache in the PCIe RAID and SSD SAS
Adapter. However, the RAID 5 or RAID 6 can also be used. If you want RAID 0, you must mirror the
SSD module though the operating system. Ensure that if an SSD module requires to be replaced or
moved, the PCIe RAID and SSD SAS Adapter on which the SSD module is located must be removed
from the server or I/O drawer before the SSD module can be accessed. This action is different from the
existing 69 GB SSD configurations, which can use the SAS bay hot-plug capability to remove and replace
a single SSD module without removing the associated PCI SAS adapter.
For the AIX and Linux operating systems, if you do not want to have PCIe RAID and SSD SAS Adapter
redundancy, but still want to protect the SSD module content, the PCIe RAID and SSD SAS Adapter can
provide RAID 5 or RAID-6 level protection on the PCIe adapter. RAID 10 is not supported for the PCIe
RAID and SSD SAS adapter. Hot-spare capability can optionally be used with RAID 5 but the spare SSD
module must be on that same PCIe RAID and SSD SAS adapter.
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Managing PCI adapters
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