Troubleshooting
Problem
In rare cases, when a large amount of data is being deleted or formatted in short periods of time, high latency may occur in a system leading to performance impact. This is caused by a code defect that is taking place during this process.
After the process is completed the issue resolves itself. The performance impact may take place for the duration of anywhere from a few hours or up to a few days.
Affected versions - 12.0.0 or later
Fix - 12.3.0 (November 23, 2018).
A patch is available for systems running on code versions 12.2.1.b-1 or 12.2.1.b-2.
Symptom
Performance degradation - High latency
Cause
When a large amount of data is being deleted or formatted in short periods of time in IBM FlashSystems A9000/R system
Environment
Affected versions
- 12.0.0 or later
Resolving The Problem
Fix
Starting from 12.3.0 and above - November 23rd, 2018.
Release Notes reference - SYS-308558
A patch is available for systems running on code versions 12.2.1.b-1 or 12.2.1.b-2.
For any queries about this communication or regarding upgrading to a version with a fix, contact your IBM Technical Advisor should you have one assigned, or your IBM Representative.
Document Location
Worldwide
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"STJKMM","label":"IBM FlashSystem A9000"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"12.0.0 - 12.2.1.b-2","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"STJKN5","label":"IBM FlashSystem A9000R"},"Component":"","Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"12.0.0 - 12.2.1.b-2","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}}]
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Document Information
Modified date:
22 June 2022
UID
ibm10869288