This portal is to open public enhancement requests against IBM System Storage products. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).
We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:
Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,
Post an idea.
Get feedback from the IBM team and other customers to refine your idea.
Follow the idea through the IBM Ideas process.
Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.
IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.
ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.
See this idea on ideas.ibm.com
System: The customer's large production systems where SVC is used
Actor: Users requesting to improve the quality of SVC
SVC is used to manage the customer's large storage systems which are used by many mission critical servers. To minimize IO failures, the customer configures clusters of SVCs.
Description: The customer complains the behavior of SVCs where IOs are delayed when a node in a SVC cluster goes down or restarts. The customer is showing the three cases of IO delays described in the following attachment.
SVC_decreasing_IO_delays_on_nodedown_20170918D.ppt
Please look at the diagrams and comments in the attachment. I hope that you try to consider how to implement new functions or to improve SVC code to meet the customer's requirements. If you think that it is hard to implement these functions from technical point of view, please let us know why you think so. The customer is also asking us if the developers of SVC are recognizing how harmful this delay is for SVC users. The customer is wondering if there is any code modification between 7.4.x and 7.8.x to shorten these delays. If you have made any modification, please let us know how you have modified the code and how much time it can shorten the delay.
Idea priority | High |
By clicking the "Post Comment" or "Submit Idea" button, you are agreeing to the IBM Ideas Portal Terms of Use.
Do not place IBM confidential, company confidential, or personal information into any field.
Attachment (Use case): In this attachment, we explain the three cases where IOs will get delayed. The customer is requesting that SVC should improve the quality so that IO delays will be minimized in these three cases.