Introduction

This document serves as a Root Cause Analysis for the Primo service interruption experienced by Ex Libris customers on  September 15, 2024

The goal of this document is to share our findings regarding the event, specify the root cause analysis, outline actions to be taken to solve the downtime event, as well as preventive measures Ex Libris is taking to avoid similar cases in future.

Event Timeline

Intermediate service interruptions were experienced by Ex Libris customers served by the Primo MT EU03 and EU04 instances at our European Data Center during the following time period:

September 15, 2024 from 10:26 AM until 10:57  AM Amsterdam time.

During the event, Service was unavailable for the environments.

Root Cause Analysis

Ex Libris Engineers investigated this event to determine the root cause analysis with the following results:

A standard non-disruptive maintenance on the environment's Storage, a miss configuration lead to a component failure and caused a service disruption.

The issue was found in real time and resolved by Ex Libris engineer.

Technical Action Items and Preventive Measures

Ex Libris has taken the following action and preventive measures to avoid such an occurrence in future:

• The procedure of this activity has been reviewed and improved to avoid recurrence of such disruption.

Customer Communication

ExLibris is committed to providing customers with prompt and ongoing updates during Cloud events. Ongoing and prompt updates on service interruptions appear in the system status portal at this address: http://status.exlibrisgroup.com/

These updates are automatically sent as emails to registered customers.