IBM s/390 Tablet Accessory User Manual


 
66 S/390 PID: ThinkPad Enabled for S/390
may force Linux swapping and this has severe effects on FLEX-ES performance. Having
gone to considerable expense to obtain a small S/390 (in the form of your ThinkPad/EFS), we
suggest you use it only as a S/390. If you need to also run a Linux server, we suggest you
obtain another machine.
Q: Should I purchase an Uninterruptable Power Supply (UPS) for use with my ThinkPad/EFS
machine?
A: The ThinkPad battery provides, in effect, a UPS function. You might consider an external
surge protector.
Q: How do I order a ThinkPad/EFS system? What if I am not a PID member?
A: You do not need to be a PID member to order a ThinkPad/EFS system (although you will
not have access to AD CD-ROM systems). The FSI Web site has a list of their business
partners.
Q: Where can I find documentation about the various FLEX-ES traces?
A: There are several FLEX-ES traces:
The processor event trace is always active and uses a permanently defined circular
buffer. It is intended only for FLEX-ES debugging and is not documented.
The processor instruction trace uses the tracesize buffer you define in your system
definition. It is intended for FLEX-ES debugging but might be useful to more
sophisticated customers. It is minimally documented at present, but FSI intends to
provide better documentation.
Device traces, which are usually obtained with the devtrsnap command. These are
not documented at present, but a user familiar with channel programming techniques
might find these traces useful.
The traces are not well documented at this time.
Q: Are any modifications, PTFs, or SPEs required for OS/390 on EFS?
A: No.
Q: Are printer FCBs emulated?
A: Yes. FLEX-ES printer emulation supports the Load Forms Control Buffer channel
command. The default FCB provides 66 lines at 6 lines/inch, with a channel 1 punch at line
3 and a channel 12 punch at line 64.
Q: Is a default 1403 carriage tape emulated?
A: Yes. It is set for 66 lines at 6 lines/inch, and has a channel 1 punch at line 3. There is no
way to alter these settings.
Q: Are Token Ring and Ethernet equally supported?
A: No. (We were still researching this question at the time of writing.)
Q: Can I manage an ESCON director from an EFS system?
A: Not from a ThinkPad/EFS system!
Q: I am interested in using FLEX-ES remote resources for disks and tapes. Do I need a
FLEX-ES license just to run the resource manager on remote systems?
A: Yes, you will need a FLEX-ES license for every system running the resource manager.