Primo MT CA01 RCA - August 20 , 2020

Introduction

This document serves as a Root Cause Analysis for the Primo service interruption experienced by Ex Libris customers on August 20,  2020

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

Service interruption was experienced by Ex Libris customers served by the Primo MT CA01 instance at the Canada Data Center during the following hours: 

August 20, 2020 from 04:37 AM until 05:15 AM and from 05:27 AM until 06:01 CST time.

During the event, the service was unavailable for the environment.

Root Cause Analysis

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

The Primo service disruptions occurred due to an unexpected computing HW failure and a delay in the auto redundancy recovery process which required a manual intervention

Technical Action Items and Preventive Measures

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

The recovery procedure has been reviewed and improved in order to minimize the downtime.

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/