WAVV
Requirement Form
Date: 9/16/2009 Requirement #: WAVV201005
Title: (Paraphrase problem in a
single statement)Add CP option to warn/refuse
to IPL a guest consuming excessive RAM
Detailed
Problem Description: (Description of what you want changed - 400 character entry limit)
Add a CP configuration statement
to warn the user and operator and optionally refuse to IPL guest if IPL would
exceed RAM and configured Page space
Priority: (Select one: Urgent
- High - Medium - Low)
Medium
Requested
Completion Date: (When? Examples: 3 months, 1 year,
Next Release) next release
Requirement
Type: (Select one:
Acceptability - Compatibility/Migration - Ease of Use - Feature/Function - Performance - Reliability/Availability/Serviceability
- Packaging - Interoperability)
RAS
Business
Justification: (Why? Non-technical
business case description. Do not reword Detailed Problem
Description from above. What are the benefits to be gained by your
company, and the vendor and others?
Quantify: run time, dollars, manpower, etc. Why should the vendor do this for the customer?)
Recently a user defined a 9TB Linux guest by
accident on a LPAR with far less storage/page space. IPL of the guest caused CP
to go into fatal storage exhaustion, forcing an IPL of VM to regain control of
the system. It should be possible to
have CP at least warn of potential outage in this situation.
Solution: (Optional)(Desired/undesired elements Note: Making a suggestion may limit a
vendors ability to deliver a solution)
Suggestion: CP knows how much real storage and
page space are available at the time of IPL.
A SYSTEM CONFIG option (and accompanying SET command) to warn of massive
overcommit and abort logon or IPL would allow users to control the impact of
such mistakes w/o removing the ability to do so if needed.
Impact: (Optional) (How
will your company’s business be affected if a solution is not delivered?)
Necessary for HA environments.
Author Name: David
Boyes Author Title:
Company Name: Sine
Nomine Associates
&
Address: 43596 Blacksmith Square
Ashburn, VA 20147/US
Author E-mail: dboyes@sinenomine.net
Telephone:
US/Canada (703) 723-6673 Extension: 1233