The storage unit supports the following operating systems for S/390 and zSeries
hosts:
v Transaction Processing Facility (TPF)
v Virtual Storage Extended/Enterprise Storage Architecture (VSE/ESA
â„¢
)
v z/OS
®
v z/VM
v Linux
For
details about models and the operating system versions and releases that the
storage unit supports for these host systems, see the Interoperability Matrix at
http://www.ibm.com/servers/storage/disk/ds8000/interop.html.
FICON-attached S/390 and zSeries hosts that the storage unit
supports
You can attach the DS8000 storage unit to FICON-attached S/390 and zSeries
hosts.
Each storage unit fibre-channel adapter has four ports. Each port has a unique
world wide port name (WWPN). You can configure the port to operate with the
FICON upper-layer protocol. When configured for FICON, the fibre-channel port
supports connections to a maximum of 128 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 ports for DS8100 Model 921 and a maximum of 128 host
ports for DS8300 Models 922 and 9A2
v A maximum of 509 channel connections per fibre-channel port
v A maximum of 2048 logical paths on each fibre-channel port
v Access to all 32 control-unit images (8000 CKD devices) over each FICON port
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. This
method exposes 64 control-unit images (16 384 devices) to each host
channel.
The storage unit supports the following operating systems for S/390 and zSeries
hosts:
v Transaction Processing Facility (TPF)
v Virtual Storage Extended/Enterprise Storage Architecture (VSE/ESA)
v z/OS
v z/VM
v Linux
For
details about models, versions of operating systems, and releases that the
storage unit supports for these host systems, see the Interoperability Matrix at
http://www.ibm.com/servers/storage/disk/ds8000/interop.html.
14 DS8000 User’s Guide
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