We are currently working on a Sitecore project where we are using
- Sitecore XP 9.0.2 and
- Sitecore XC 9.0.3 with
- Standalone Solr 6.6.2
Currently we have close to 50 GB of data on various Solr cores, the largest one of them being xDB with 40 GB data. The strategy we have thought of for a zero downtime migration is cloning our CM server in production and changing the Solr url in the cloned server from standalone Solr to the SolrCloud load balancer and reindex all the collections. Our concern here is that the xDB index has close to 40GB data, will reindexing this amount of data using the cloned CM server work? If it won't then is there any other way to reindex large sized xDB on SolrCloud?