VM/ESA
Open Systems Adapter / Support Facility
OSA/SF General Information
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Be aware that the VM/ESA OSA/SF apar and ptf database
is shared with OS/390 apar and ptf database.
This allows an OSA and/or OSA/SF apar/ptf
to be shared across different platforms.
Ref item 5 in the VMOSASF220 PSP bucket.
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(Added 01/03/01)
For an OSA card to function, it needs both an OSA Address Table (OAT Table) and an IMAGE loaded onto the card. Some OSA cards also require a CONFIGURATION file as well. A few of the models of the OSA cards ship with a DEFAULT OAT Table and TCP/IP Passthru IMAGE already installed. - There are different types of OSA2 cards, some with 1 port and some
with 2 ports...and even some with 'logical ports'!
So there are too many options to not want an OSA2 card.
- You CAN use your OSA2 card without the OSA/SF facility
installed, providing you use TCP/IP connections only and the
default device addresses.
- All of the OSA2 cards (except the OSA2 ATM)
are shipped with TCP/IP Passthru mode
as the default mode. If you are going to run with default
unit addresses/ports in TCP/IP Passthru mode
then you do not need to do any customization
to the OSA2 by OSA/SF.
- Default Unit Addresses for Port 0 are 00,01
- Default Unit Addresses for Port 1 are 02,03
- Default Unit Addresses for Port 0 are 00,01
- From a VM TCP/IP point of view, each OSA2 card
port is viewed as a
LAN Channel Station (LCS) device.
TCP/IP requires 2 device numbers/addresses per port...1 for
Read/Receive, and 1 for Write/Send.
- OSA/SF installation is needed if you are ever going to try and
communicate with the OSA2 card.
- OSA/SF runs with a Service Virtual Machine and has
associated client userids for requesting OSA/SF functions and
to execute the IOACMD commands:
- OSASF
- OSA/SF production server machine
- OSADMIN1
- Administration userid 1
- OSADMIN2
- Administration userid 2
- OSADMIN3
- Administration userid 3
- OSAMAINT
- OSA/SF Maintenance machine
- 2VMVMV20
- OSA/SF Installation userid
- Entering IOACMD from OSADMINx userid will guide you through the command options and syntax (you can also refer to the OSA/SF Users Guide for commands and/or syntax).
Use the BACK button to return to OSA/SF Home Page.