Filter
Top Products
© Copyright IBM Corp. 2001 73
Appendix B. FLEX-ES parameters
This appendix reviews a selected subset of the FLEX-ES parameters needed to define
emulated S/390 systems and their resources. The formal FLEX-ES documentation should be
reviewed for additional information, more emulated devices, and many other parameters.
System definitions
System definitions are usually something like this:
system S10A:
memsize(262144) # K Central Storage = 256 MB
essize(64) # M Expanded Storage = 64 MB
instset(esa)
tracesize(256)
cpu(0) dedicated # Single Pentium, dedicated
channel(0) local
channel(1) local
channel(2) local
channel(3) local
cu devad(0x00C,3) path(0) resource(R10A2821) # 2450R, 2540P, 1403
cu devad(0x560,1) path (0) resource(R10A3480) # tape drive (4mm)
cu devad(0x700,16) path(1) resource(R10A3174) # 3270 terminals
cu devad(0xA80,12) path(2) resource(R10A3990) # 3390 disks
cu devad(0xE20,2) path(3) resource(R10A3088) # CTCs for TCP/IP
end S10A
The first line (system S10A) provides a name for the system being defined. The FLEX-ES
compiler will create a file named, for this example, S10A.syscf.
memsize always expresses kilobytes of storage. The largest accepted value is 2097152,
which would define a 2 GB system. The size specified will be the size of central storage in the
emulated S/390. There is no direct relation to the memory size on the ThinkPad server,
although we strongly recommend that memsize be such that no paging is required by the
underlying Linux system.
B