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JCR implements a tree of nodes with asscotiated properties with all sorts or pointers (think object oriented database). Persistence manager by default is Tar, transaction aware, file system agnostic and uses Lucene to support SQL queries.
Which Data Store (MicroKernel) to Use
Since most Enterprise use a CDN, usse TARMK. From Adobe's microkernal recommendations,
- MongoMK is used for scalability
- TarMK is designed for performance
"Adobe highly recommends TarMK to be the default persistence technology used by customers in all deployment scenarios, for both the AEM Author and Publish instances".
SDD or HDD? - Ask Adobe how often the microkernal writes?
Adobe Acryonyms
AEM was previously called CQ.
CRX - references the bundle of technologies put together by Adobe.
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