Chapter 8. PCI communication adapters
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8.2.35 SSA Fast-Write Cache Module (F/C 6222)
The SSA Fast-Write Cache Module (F/C 6222) is an optional 4 MB fast-write
module that plugs into the PCI SSA RAID 5 adapter (F/C 6215). The F/C 6222
cache option uses non-volatile RAM, which has over seven years of memory
retention. Non-volatile memory allows you to transfer the cache module from a
failing Multi-Initiator adapter to a new adapter during the unlikely event of an
adapter failure. This helps insure data integrity and operational reliability.
Feature characteristics
This adapter features the following characteristics and requirements:
Only one F/C 6222 is supported on each PCI SSA RAID 5 adapter (F/C
6215).
8.2.36 Advanced SerialRAID Adapter (F/C 6225)
The Advanced SerialRAID Adapter (F/C 6225) is a 4-port (2 loop) Serial Storage
Architecture (SSA) adapter providing an instantaneous data transfer rate of up to
160 MB per second per loop. It also provides eight-initiator, non-RAID capability,
or two-initiator RAID 5 capability. The adapter accepts a 32 MB SSA Fast-Write
Cache Option Card (F/C 6235) that can improve write performance in both RAID
5 and non-RAID one-initiator applications. The Advanced SerialRAID Adapter
when operated in a RAID 5 configuration will support (2+P) to (15+P) arrays and
up to 6 (15+P) arrays. The adapter also supports Hot Spares in RAID 5 mode.
The Advanced SerialRAID Adapter also supports connectivity to external disk
enclosures and internal RS/6000 SSA configurations. Optional SSA Fiber-Optic
Extender is also supported (Refer to IBM 7133 Sales literature for additional
information).
Any supported RS/6000 system can be set up to boot from an Advanced
SerialRAID Adapter (F/C 6225), provided a non-RAID SSA disk is included as
part of the configuration. Other disks associated with the adapter can be RAID
but at least one disk must be a non-RAID SSA disk.
8.2.37 Gigabit Fibre Channel PCI adapter (F/C 6227)
The Gigabit Fibre Channel PCI adapter (F/C 6227) provides single initiator
capability through an optical fiber link running up to 100MB/s. With the use of
optical fiber cabling, this adapter provides the capability for a network of
high-speed local and remote located storage. F/C 6227 is a 32-bit PCI to NL-Port
Fibre Channel node port connected to an arbitrated loop) host bus adapter. The
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