Library Open Platform Uptime Report for NA91 Instance (North America) - Q2 2025
Uptime Quarterly Reports are published each quarter to provide a comprehensive view of our uptime performance as measured over the last three (3) months and over the last twelve (12) months. The report measures our performance as defined in the Service Level Agreement.
This document details the uptime report for the Higher-Ed-Platform (Alma, Primo VE, Leganto, Esploro) NA91 in North America.
Uptime Report
The uptime measured on a rolling 12-month basis from July 2024 to June 2025 is 99.98%.
The uptime measured on a rolling 3-month basis from April 2025 to June 2025 is 99.96%.
Please note our System Uptime Status page, which allows our customers to view the current status of their instance/environment at any time, using the following link: http://status.exlibrisgroup.com
Unscheduled downtime (outside of the MW) incidents in Q2 2025
|
Date |
Start time [CDT] |
End time [CDT] |
Duration |
Description |
|---|---|---|---|---|
| April 2, 2025 | 2:45 PM | 3:55 PM | 50 |
High CPU usage on the Web Application Firewall (WAF) caused slowness and disruptions to the services in the Data Center. The WAF was disabled by the Network team, resulting in immediate restoration of normal operations.
The network team reviewed and optimized the WAF policies to ensure efficient CPU usage and improved performance. |
Scheduled downtime (during the MW) incidents in Q2 2025
|
Start Date |
Day of Week |
Start Time [CDT] |
End Time [CDT] |
Duration (Minutes) |
|---|---|---|---|---|
| April 6, 2025 | Sunday | 02:21 | 02:40 | 19 |
| April 27, 2025 | Sunday | 00:58 | 01:20 | 21 |
| May 4, 2025 | Sunday | 02:11 | 02:41 | 29 |
| May 11, 2025 | Sunday | 02:02 | 02:27 | 25 |
| May 11, 2025 | Sunday | 02:58 | 03:12 | 14 |
| June 8, 2025 | Sunday | 02:13 | 02:30 | 17 |
Total unscheduled downtime minutes during the past 12 months
|
Quarter |
Total unscheduled downtime in Quarter (minutes) |
|---|---|
| Q3 2024 | 20 |
| Q4 2024 | 0 |
| Q1 2025 | 43 |
| Q2 2025 | 50 |
How is Uptime Calculated?
The uptime calculation is based on the following calculation (as defined in the Service Level Agreement):
"Uptime" means the total period in minutes during which the Service is available for access and use during this period.
“Uptime Percentage” means Uptime expressed as a percentage, calculated by the following formula:
Uptime Percentage = X /(Y–Z) × 100
Where:
X = Uptime
Y = Last 12 months period
Z = The duration (in minutes) of any SLA Exclusions* during these 12 months
*SLA exclusions are defined in the contract SLA (e.g. Scheduled maintenance, etc.)
Further Information
If you have any queries on the information within this report please contact Ex Libris through your usual channel.