1. Feature Overview:
Feature Id: [60870]
a. Name of Feature: [5.6 FEAT] Adjust Anaconda Swap recommendations to Linux on System z specifics
b. Feature Description
If the configured size of swap is less than the main memory (storage), anaconda shows an information
box stating that this may influence performance and whether the user wants to continue or change the
swap configuration. Additionally, the System z specific section 17.14.4 in the RHEL 5.1 Install
Guide states rules of thumbs for swap size which seem to have been taken from the description for
the x86 architecture. However, in VM environments, rules for determining the swap size are not as
simple as on x86. 
1) The above mentioned anaconda info box should not appear on s390. That is:
- Only have a warning dialog when no swap is defined.
- If a swap is defined, no matter how big or small, no warning dialog should appear.
2) The content of Section 17.14.4 of the RHEL 5.1 Install Guide should be replaced by: "Configuring
efficient swap space for Linux on System z is a complex task. It very much depends on the specific
environment and should be tuned to the actual system load. Please see the following resources for
more information: * Chapter 7 on "Linux swapping" of the IBM Redbook, Linux on IBM System z:
Performance Measurement and Tuning, IBM Form Number SG24-6926-01, ISBN 0738485586.
[http://www.redbooks.ibm.com/abstracts/sg246926.html] * topic "Linux on System z performance" in the
IBM Systems Information
Center[http://publib.boulder.ibm.com/infocenter/systems/index.jsp?topic=/liaag/lcon_Linux_on_System_z_performance.htm]
* webpage on IBM z/VM Performance Considerations for Linux
Guests[http://www.vm.ibm.com/perf/tips/linuxper.html]" The corresponding architecture specific
installation documentation should be updated accordingly.

2. Feature Details:
Sponsor: ---
Architectures:
  zSeries - 64 native

Arch Specificity: purely arch specific code
Affects Kernel Modules: No
Delivery Mechanism: LDP Deliverable
Category: other
Request Type: Installer - Enhancement from Distributor
d. Upstream Acceptance: Accepted
Sponsor Priority P2
f. Severity: high
IBM Confidential: No
Code Contribution: no
g. Component Version Target:
---

3. Business Case
These changes will improve the installation experience for customers by making the installation work
flow more usable and efficient, which will result in an improvement of the customer satisfaction.

4. Primary contact at Red Hat:
John Jarvis
jjarvis

5. Primary contacts at Partner:
Project Management Contact:
Hans-Georg Markgraf, mgrf.com

Technical contact(s):
Gonzalo Muelas Serrano, gmuelas.com