EOSC Portal Availability and Continuity Plan
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Back to main page: Services Availability Continuity Plans
work in progress
This page reports on the Availability and Continuity Plan for the EOSC Portal and it is the result of the risks assessment conducted for this service: a series of risks and treats has been identified and analysed, along with the correspondent countermeasures currently in place. Whenever a countermeasure is not considered satisfactory for either avoiding or reducing the likelihood of the occurrence of a risk, or its impact, it is agreed with the service provider a new treatment for improving the availability and continuity of the service. The process is concluded with an availability and continuity test.
|Av/Co plan and test|
Availability requirements and performances
Service level targets:
- Availability: 90%
- Reliability 95%
Other ava requirements:
- The service is accessible via webUI
- The service availability is regularly tested by nagios probe org.nagiosexchange.Portal-WebCheck (currently on the uncert ARGO instance): https://argo-mon-uncert.cro-ngi.hr/nagios/cgi-bin/status.cgi?host=eosc-portal.eu&style=detail
Risks assessment and management
For more details, please look at the google spreadsheet. We will report here a summary of the assessment.
|Risk id||Risk description||Affected components||Established measures||Risk level||Expected duration of downtime / time for recovery||Comment|
|1||Service unavailable / loss of data due to hardware failure||EOSC Portal user GUI, EOSC Portal database||All services are running on virtual machines. In case of hardware failure of the host machine the virtual machine can be re-instantiated.||High||up to 8 hours||It is necessary to verify the implementation status of the hardware HA configuration.|
|2||Service unavailable / loss of data due to CEPH file system in the cloud infrastructure||EOSC Portal user GUI, EOSC Portal database||All services databases are backed up on a tape storage. Service VM will be restored with the database back up from the tape storage.||Medium||1 or more working days|
|3||Service unavailable / loss of data due to software failure||EOSC Portal user GUI, EOSC Portal database||Monitoring of system health, backups||Medium||up to 4 hours|
|4||service unavailable / loss of data due to human error||EOSC POrtal user GUI||Monitoring of system health, backups||Medium||less than 1 hour|
|5||service unavailable for network failure (Network outage with causes external of the site)||Monitoring of service availability, ACC Cyfronet AGH has redundant network connectivity.||Low||up to 4 hours|
|6||Unavailability of key technical and support staff (holidays period, sickness, ...)||EOSC Portal user GUI, EOSC Portal database||More personnel may be involved in the operation of the EOSC Portal||Low||1 or more working days|
|7||Major disruption in the data centre. Fire, flood or electric failure for example||EOSC Portal user GUI, EOSC Portal database||The computing centre has electric backup system and fire control devices.||Medium||1 or more working days|
|8||Major security incident. The system is compromised by external attackers and needs to be reinstalled and restored.||EOSC POrtal user GUI||Monitoring of system health, security audits, backups, following best practices for security configuration and timely implementation of patches||Low||up to 8 hours|
|9||(D)DOS attack. The service is unavailable because of a coordinated DDOS.||Local network team provides monitoring and protection for DOS attacks, firewall can limit impact of the DDoS||Medium||up to 8 hours|
Currently there is no hardware HA configuration. It is important agreeing with the provider a plan for implementing it in order to decrease the rating of risk number 1.
The provider has got internal procedures to invoke in case of risk occurrence
The Availability targets don't change in case the plan is invoked.
- Maximum tolerable period of disruption (MTPoD) (the maximum amount of time that a service can be unavailable or undelivered after an event that causes disruption to operations, before its stakeholders perceive unacceptable consequences): 1 day
- Recovery time objective (RTO) (the acceptable amount of time to restore the service in order to avoid unacceptable consequences associated with a break in continuity (this has to be less than MTPoD)): 4 hours
- Recovery point objective (RPO) (the acceptable latency of data that will not be recovered): n.a.
Approach for the return to normal working conditions as reported in the risk assessment.
Availability and Continuity test
The proposed A/C test will focus on a recovery scenario: the service is supposed to have been disrupted and needs to be reinstalled from scratch. Typically this covers the risks 1,3, and 8. The last backup of the data will be used for restoring the service, verifying how much information will be lost, and the time spent will be measured.
Performing this test will be useful to spot any issue in the recovery procedures of the service.
Test details and outcome
The overall time needed to recover the service: 4h
The proposed test focused on a recovery scenario:
- Restore virtual machines from backups (tapes) (haproxy,apache httpd, mysql)
- Restore databases data using the latest dump.
- Setup haproxy to proxy services from new machines.
- Associate floating IP addresses in OpenStack to haproxy service and open firewall.
- Test instance https:/eosc-portal.eu
|Alessandro Paolini||2020-07-02||risk assessment completed|
|Alessandro Paolini||2020-11-10||plan completed|