IBM z13s, Техническое руководство

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IBM z13s Technical Guide
Figure D-7 shows the three physically separate networks defined.
Figure D-7 Physical network ID example
Sample IOCP FUNCTION statement
Example D-1 shows one sample IOCP FUNCTION configuration to define an RoCE Express
adapter shared between LPARs.
Example D-1 IOCP FUNCTION statements
FUNCTION FID=05,PCHID=100,PART=((LP08),(LP09)),VF=1,TYPE=ROCE,PNETID=(PNETA,PNETB)
FUNCTION FID=06,PCHID=12C,PART=((LP08),(LP09)),VF=1,TYPE=ROCE,PNETID=(PNETA,PNETB)
FUNCTION FID=07,PCHID=100,PART=((LP12),(LP06)),VF=2,TYPE=ROCE,PNETID=(PNETA,PNETB)
FUNCTION FID=08,PCHID=12C,PART=((LP12),(LP06)),VF=2,TYPE=ROCE,PNETID=(PNETA,PNETB)
This example has these characteristics:
򐂰
PNETID array identifies the network that the ports are associated with. Thus, all FIDs on a
RoCE adapter that are associated with the same PCHID must have the same PNETID for
each port.
򐂰 10GbE RoCE Express Functions for LPAR 08 are reconfigurable to LP 09 with access to
two networks.
򐂰
10GbE RoCE Express Functions for LPAR 12 are reconfigurable to LP 06 with access to
two networks.
򐂰 Physical RoCE Express adapters on PCHID 100 and 12C are shared between LPARs 08
and 12.
D.2.8 Software exploitation of SMC-R
SMC-R can be implemented on the RoCE and can communicate memory to memory, thus
avoiding the CPU resources of TCP/IP by reducing network latency and improving wall clock
time. It focuses on “time to value” and widespread performance benefits for all TCP
socket-based middleware.
Network B Network A Network C
CPC
PNet A PNet B PNet C
IODF HCD
PNet IDs in HCD
Switch A Switch A Switch A Switch B Switch B Switch B
PCHID
PNet ID
z/VM
Logical Partitions Guest Virtual Machines
PR/SM
Operating Systems dynamically learn PNet ID (I/O configuration)
then group adapters together based on matching PNet IDs
OSA
OSA
OSA
RoCE RoCE RoCE