IBM 990 - Manual (Page 25)

Chapter 1. zSeries 990 overview 13
complex RSA cryptographic operations used with the Secure Sockets layer (SSL) protocol
supporting e-business. The PCICA feature is designed specifically for maximum speed SSL
acceleration.
Each zSeries PCI Cryptographic Accelerator feature (PCICA) contains two accelerator cards
and can support up to 2100 SSL handshakes per second.
PCI X-Cryptographic Coprocessor (PCIXCC) feature
The Peripheral Component Interconnect X Cryptographic Coprocessor (PCIXCC) feature has
one coprocessor and is an optional addition, containing support to satisfy high-end server
security requirements by providing full checking and fully programmable functions and User
Defined Extension (UDX) support.
The PCIXCC adapter is intended for applications demanding high security. The PCIXCC
feature is designed for the FIPS 140-2 Level 4 compliance rating for secure cryptographic
hardware.
1.3.9 Parallel Sysplex support
Here we discuss Parallel Sysplex support.
ISC-3
A 4-port ISC-3 card structure is provided on the z900 family of processors. It consists of a
Mother Card with two Daughter Cards that have two ports each. Each Daughter Card is
capable of operating at 1 Gbps in compatibility mode (HiPerLink) or 2 gigabits/sec in peer
mode and up to 10 km. The mode is selected for each port via the CHPID type in the IOCDS.
InterSystem Coupling Facility-3 (ISC-3) channels provide the connectivity required for data
sharing between the Coupling Facility and the CPCs directly attached to it. ISC-3 channels
are point-to-point connections that require a unique channel definition at each end of the
channel. ISC-3 channels operating in peer mode provide connections between z990, z890,
and z900 general purpose models and z900-based Coupling Facility images. ISC-3 channels
operating in compatibility mode provide connections between z990 models and ISC HiperLink
channels on 9672 G5/G6 models.
ICB-2 (Integrated Cluster Bus 2)
The Integrated Cluster Bus-2 (ICB-2) link is a member of the family of Coupling Link options
available on z990. Like the ISC-3 link, it is used by coupled systems to pass information back
and forth over high speed links in a Parallel Sysplex environment. ICB-2 or ISC-3 links are
used to connect 9672 G5/G6 to z990 servers.
An STI-2 resides in the I/O cage and provides two output ports to support the ICB-2
connections. The STI-2 card converts the 2 GBps input into two 333 MBps ICBs. The ICB-2 is
defined in compatibility mode and the link speed is 333 MBps.
One feature is required for each end of the link. Ports are ordered in increments of one.
Note: To enable the function of the PCICA feature, the CP Assist feature (feature code
3863) must be installed.
Note: To enable the function of the PCIXCC feature, the CP Assist feature (feature code
3863) must be installed.