IBM manual zSeries 890 Family Configuration Detail, Processor Unit Assignments, Processor Memory

zSeries 890 Family Configuration Detail

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,	01	28	420	16	4
16 port			channels	channels2	channels3
FICON	01	204	80	4	1 feature
Express2			channels	channels
STI-35	0	8	N/A	2 outputs	N/A
ICB-3 link	01	N/A	16 links6	N/A	1 link
ICB-4 link	01	N/A7	8 links6	N/A	1 link
ISC-3	01	12	48 links6, 8	4 links	1 link9
OSA-	0	204	40	2	1 feature
Express			ports	ports
OSA-	0	202, 4	40	2 or 1 (10	1 feature
Express2			ports	GbE has 1)
Crypto	0	162, 4	16	2	1 feature
Express2			coprocessors	coprocessors
PCICA	0	24	4 accelerator	2 accelerator	1 feature
			cards	cards
PCIXCC	010	44	4	1	1 feature10
			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, Configuration 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 configured 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.

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