[IGNITE-8455] Cover main Ignite memory modes

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.7
• Component/s: documentation, site
• Assignee: Denis A. Magda
• Reporter: Denis A. Magda
• Created: 08/May/18 16:21
• Updated: 05/Nov/18 19:07
• Resolved: 11/Jul/18 21:14

Description

Ignite website doesn't mention various modes on how Ignite native persistence can be used:

• no disk, data is in memory-only (potentially over a 3rd-party database)
• disk is a copy of the memory (only for recovery purposes)
• disk is a data storage with memory used as a performant caching layer
• indexes in memory and data on disk for better technical cost of ownership.

I believe we should put it in a table and explain it on the memory-centric page.

More details: http://apache-ignite-developers.2346864.n4.nabble.com/missing-website-info-td30145.html