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Maximum of 512 CHPIDs; One I/O cages: 28 I/O slots
Per System
Feature Minimum Maximum Maximum Ports/ Purchase
Features I/O Slots Connections Channels/ Increments
used by Increments
Features per Feature
ESCON, 0
1
28 420 16 4
16 port channels channels
2
channels
3
FICON 0
1
20
4
80 4 1 feature
Express2
channels
channels
STI-3
5
0 8 N/A 2 outputs N/A
ICB-3 link 0
1
N/A 16 links
6
N/A 1 link
ICB-4 link 0
1
N/A
7
8 links
6
N/A 1 link
ISC-3 0
1
12 48 links
6, 8
4 links 1 link
9
OSA- 0 20
4
40 2 1 feature
Express
ports ports
OSA- 0 20
2, 4
40 2 or 1 (10 1 feature
Express2 ports GbE has 1)
Crypto 0 16
2, 4
16 2 1 feature
Express2 coprocessors coprocessors
PCICA
0 2
4
4 accelerator 2 accelerator 1 feature
cards cards
PCIXCC
0
10
4
4
4 1 1 feature
10
coprocessor coprocessor
1) A minimum of one I/O feature (ESCON, FICON Express/FICON Express2)
or one Coupling Link (ICB, ISC-3) is required.
2) Each ESCON feature has 16 channels of which 15 channels may be acti-
vated. One channel is always reserved as a spare.
3) ESCON channels are purchased in increments of four and are activated
via Licensed Internal Code, Confi guration Control (LIC CC). Channels
are activated equally across all installed 16-port ESCON features for
high availability.
4) The maximum quantity of FICON Express, FICON Express2, OSA-
Express, OSA-Express2, PCICA, and PCIXCC in combination cannot
exceed 20 features per server. When the FICON Express2 feature
becomes available, the FICON Express (feature codes 2319 and 2320)
will no longer be orderable.
5) Each STI-3 distribution card, which supports the ICB-3s, resides in the
I/O cage, occupying one I/O slot.
6) The maximum number of Coupling Links combined (ICs, ICB-3s, ICB-4s,
and active ISC-3 links) cannot exceed 64 per server.
7) ICB-4s do not require connectivity to a card in the I/O cage. ICB-4s are
not included in the maximum feature count for I/O slots.
8) A maximum of 32 ISC-3s can be defi ned in compatibility mode (operat-
ing at 1 Gbps, instead of 2 Gbps).
9) It is recommended that an initial order for ISC-3 include two links. When
two links are purchased, two ISC-3 features are shipped and activated
links are balanced across ISC-3 features for high availability.
10) PCIXCC feature increments are 0, 2, 3, or 4.
Note: The Capacity Model 110 has an I/O cage with 16 I/O slots maximum
which will support up to 240 channels which can be any mix of the fol-
lowing as long as it does not exceed 240 channels — maximum of 240
ESCON channels, 32 FICON Express channels, 24 OSA-Express ports.
Processor Unit Assignments
Model Total PUs Characterized PUs* SAP Standard Spares
A04***
1-way** 5 1 1 3
2-way** 5 2 1 2
3-way** 5 3 1 1
4-way** 5 4 1 0
*PU can be characterized as CP, IFL, ICF, or zAAP
**These values are for all machines including the sub-uni, sub 2-way
models, etc.
***Customer will be required to purchase at least one CP, IFL, ICF or zAAP
Processor Memory
z890 Model Minimum Maximum
A04 8 GB 32 GB
Single memory card. Memory cards 8 GB, 16 GB or 32 GB. Memory incre-
ments 8 GB.
Channels
Model ESCON Min **ESCON Max *FICON Min *FICON Max
A04 0 420 0 40
*FICON Express and FCP confi gured on the same FICON Express features.
Max FICON Express channels total 40, max FICON Express2 channels
total 80.
**ESCON increments of 4 channels
Coupling Links
Links IC ICB-3* ICB-4 ISC-3 Max Links
0-32 0-16 0-8 0-48 Max combined IC,
ICB-3, ICB-4, active
ISC-3 = 64
*requires STI-3 card
Note: At least one I/O channel (FICON, ESCON) or one coupling link (ISC,
ICB) must be present.
zSeries 890 Family Confi guration Detail