Alma Uptime Report for CN01 Instance (China) - Q2 2018
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 Alma CN01 in China.
The uptime measured on a rolling 12 month basis July 2017 - June 2018 is 99.97%
The uptime measured on a rolling 3 month basis April 2018 - June 2018 is 99.91%
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 incidents in Q2 2018
|
Date |
Start time [SGT] |
End time [SGT] |
Duration |
Description |
|---|---|---|---|---|
| June 24, 2018 | 15:50 PM | 17:42 PM | 112 | A hardware failure in one of our computer units caused a service disruption. Normally, a failed computing element should not cause a disturbance in the service. After an investigation, we discovered a bug in the virtualization management system that placed identical virtual logical units on the same computing element. |
Scheduled downtimes during maintenance windows in Q2 2018
|
Start Date |
Day of week |
Start Time [SGT] |
End Time [SGT] |
Duration (Minutes) |
|---|---|---|---|---|
| April 08, 2018 | Sunday | 01:46 AM | 01:58 AM | 12 |
| May 06, 2018 | Sunday | 00:02 AM | 00:16 AM | 14 |
| May 13, 2018 | Sunday | 00:02 AM | 00:15 AM | 13 |
| June 03, 2018 | Sunday | 00:02 AM | 01:19 AM | 77 |
| June 10, 2018 | Sunday | 00:06 AM | 00:20 AM | 14 |
Total unscheduled downtime minutes during past 12 months
|
Quarter |
Total unscheduled downtime in Quarter (minutes) |
|---|---|
| Q3 2017 | 0 |
| Q4 2017 | 26 |
| Q1 2018 | 0 |
| Q2 2018 | 112 |
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 in accordance with 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.