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A-Frame
Single
I/O cage
I/O
Cage
CEC
Cryptographic Features
PCICA
1, 2
PCIXCC
2
Minimum 0 0
Maximum 2
3
4
4
1. Max two PCICA features per system
2. Max eight PCICA and PCIXCC features per system
3. Two accelerator cards per PCICA feature
4. One coprocessor per PCIXCC feature (minimum orderable 2 features)
OSA-Express Features
OSA-Express* Features
Minimum 0
Maximum 20
*Any combination of GbE LX, GbE SX, 1000BASE-T Ethernet, Token-Ring
z890 Frame and I/O Confi guration Content: Planning for I/O
The following diagrams show the capability and fl exibility
built into the I/O subsystem. All machines are shipped with
a single frame, the A-Frame has a single I/O cage with 28
I/O slots.
I/O Feature Type Features Maximum
ESCON 28 cards 420 channels
FICON Express 20 40 channels
FICON Express2 20 80 channels
OSA-Express 20 40 ports
OSA-Express2 20 40 ports
PCIXCC 4 4 ports
PCICA 2 4 ports
Maximum combined FICON Express, OSA-Express, PCICA/PCIXCC fea-
tures is 20
General Information:
• ESCON confi gured in 4-port increments. Up to 28 chan-
nels in 2 cards, 60 channels in 4 cards, 88 channels in 6
cards, etc. up to a maximum 420 channels on 28 cards
• OSA-Express/OSA-Express2 can be Gigabit Ethernet,
1000BASE-T Ethernet or Token-Ring
• Total number of PCIXCC / PCICA is 8 per system
• If ICB-3 are required on the system, these will use up a
single I/O slot for each ICB-3 to accommodate the STI-3
cards. The fi rst ICB-3 required a slot. The second to the
fourth required another slot. The fi fth to the sixth required
another slot. (STI-3 cards each provide two ICBs)
Channels and channel adapters no longer supported on z890
The following channels and/or channel adapters are no
longer supported:
• Parallel channels - an ESCON converter is required; IBM
9034 or Optica 34600 FXBT
• OSA-2 adapters - use equivalent OSA-Express adapt-
ers, for FDDI migrate to Ethernet as soon as possible
• OSA-Express ATM - use 1000BASE-T or Gigabit Ether-
net with appropriate multi-protocol switch or router
• 4 Port ESCON cards - will be replaced with 16-port
ESCON cards during upgrade
• PCICC - replaced with PCIXCC for most functions
• ICB-2 - replace with ISC-3 links in compatibility mode.