IBM DS8000 User Manual page 46

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18
DS8000 User's Guide
v Linux
v Transaction Processing Facility (TPF)
v Virtual Storage Extended/Enterprise Storage Architecture (VSE/ESA
v z/OS
®
v z/VM
™
v z/VSE
For the most current information on supported hosts, operating systems, adapters
and switches, see the DS8000 Interoperability Matrix at http://www.ibm.com/
servers/storage/disk/ds8000/ or the System Storage Interoperation Center (SSIC)
at http://www.ibm.com/systems/support/storage/config/ssic/.
FICON-attached System z and S/390 hosts overview
This section describes how you can attach the DS8000 storage unit to
FICON-attached System z and S/390 hosts.
Each storage unit fibre-channel adapter has four ports. Each port has a unique
worldwide port name (WWPN). You can configure the port to operate with the
FICON upper-layer protocol. For FICON, the fibre-channel port supports
connections to a maximum of 509 FICON hosts. On FICON, the fibre-channel
adapter can operate with fabric or point-to-point topologies.
With fibre-channel adapters that are configured for FICON, the storage unit
provides the following configurations:
v Either fabric or point-to-point topologies
v A maximum of 64 host adapter ports on DS8100 Models 921 and 931, and a
maximum of 128 host adapter ports on DS8300 Models 922, 932, 9A2, and 9B2
v A maximum of 509 logins per fibre-channel port
v A maximum of 8192 logins per storage unit
v A maximum of 1280 logical paths on each fibre-channel port
v Access to all 255 control-unit images (8000 CKD devices) over each FICON port
v A maximum of 512 logical paths per control unit image.
Note: FICON host channels limit the number of devices per channel to 16 384. To
fully access 65 280 devices on a storage unit, it is necessary to connect a
minimum of four FICON host channels to the storage unit. You can access
the devices through a switch to a single storage unit FICON port. With this
method, you can expose 64 control-unit images (16 384 devices) to each host
channel.
The storage unit supports the following operating systems for System z and S/390
hosts:
v Linux
v Transaction Processing Facility (TPF)
v Virtual Storage Extended/Enterprise Storage Architecture (VSE/ESA)
v z/OS
v z/VM
v z/VSE
For the most current information on supported hosts, operating systems, adapters
and switches, see the DS8000 Interoperability Matrix at http://www.ibm.com/
™
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