Table of Contents
Advertisement
z10 EC I/O Subsystem
The z10 EC contains an I/O subsystem infrastructure
which uses an I/O cage that provides 28 I/O slots and the
ability to have one to three I/O cages delivering a total of
84 I/O slots. ESCON, FICON Express4, FICON Express2,
FICON Express, OSA-Express3 LR, OSA-Express2, and
Crypto Express2 features plug into the z10 EC I/O cage
along with any ISC-3s and InfiniBand Multiplexer (IFB-
MP) cards. All I/O features and their support cards can
be hot-plugged in the I/O cage. Installation of an I/O
cage remains a disruptive MES, so the Plan Ahead fea-
ture remains an important consideration when ordering a
z10 EC system. Each model ships with one I/O cage as
standard in the A-Frame (the A-Frame also contains the
Central Electronic Complex [CEC] cage where the books
reside) and any additional I/O cages are installed in the
Z-Frame. Each IFB-MP has a bandwidth up to 6 GigaBytes
per second (GB/sec) for I/O domains and MBA fanout
cards provide 2.0 GB/sec for ICB-4s.
The z10 EC continues to support all of the features
announced with the System z9 EC such as:
• Logical Channel Subsystems (LCSSs) and support for
up to 60 logical partitions
• Increased number of Subchannels (63.75k)
• Multiple Subchannel Sets (MSS)
• Redundant I/O Interconnect
• Physical Channel IDs (PCHIDs)
• System Initiated CHPID Reconfiguration
• Logical Channel SubSystem (LCSS) Spanning
z10 EC Channels and I/O Connectivity
ESCON Channels
The z10 EC supports up to 1,024 ESCON channels. The
high density ESCON feature has 16 ports, 15 of which
can be activated for customer use. One port is always
reserved as a spare which is activated in the event of a
failure of one of the other ports. For high availability the
initial order of ESCON features will deliver two 16-port
ESCON features and the active ports will be distributed
across those features.
Fibre Channel Connectivity
The on demand operating environment requires fast data
access, continuous data availability, and improved flexibil-
ity, all with a lower cost of ownership. The four port FICON
Express4 and FICON Express2 features available on the
z9 EC continue to be supported on the System z10 EC.
FICON Express4 Channels
The z10 EC supports up to 336 FICON Express4 chan-
nels, each one operating at 1, 2 or 4 Gb/sec auto-negoti-
ated. The FICON Express4 features are available in long
wavelength (LX) and short wavelength (SX). For customers
exploiting LX, there are two options available for unre-
peated distances of up to 4 kilometers (2.5 miles) or up to
10 kilometers (6.2 miles). Both LX features use 9 micron
single mode fiber optic cables. The SX feature uses 50
or 62.5 micron multimode fiber optic cables. Each FICON
Express4 feature has 4 independent channels (ports) and
can be configured to carry native FICON traffic or Fibre
Channel (SCSI) traffic. LX and SX cannot be intermixed on
a single feature. The receiving devices must correspond to
the appropriate LX or SX feature. The maximum number of
FICON Express4 features is 84 using three I/O cages.
15
Advertisement
Table of Contents
