Hello, We are looking to improve the resilience of our VLE infrastructure, which uses OpenAFS to house some data; in particular to provide multi-server and multi-site data replication. The database part of this will be provided by MySQL streaming replication, and we are hoping that the AFS part can be provided by giving the VLE a multi-site AFS volume, configuring the application to always talk to the read/write volume, and then scheduling a 'vos release' every minute or so via cron or some other method. Then the manual failover process would involve promoting the secondary site manually.
Has anyone got any experience of doing this kind of thing with a busy and large-ish (100s of GB) volume? Is it workable in principle or have people found that there is a practical limit to how quickly/often vos releases can be done - or any other flaws in the scheme? Thanks, Dominic. -- Dominic Hargreaves, Systems Development and Support Section IT Services, University of Oxford, 13 Banbury Road, Oxford, OX2 6NN
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