<s>[INST] This data source is used within a large and complex system for a national-scale educational organization. 

The data source will provide the following data points:

1.  parent_guid
2.  parent_email
3.  parent_first_name
4.  parent_last_name
5.  core_phone_number
6.  /* all phone numbers, with a flag to denote main or secondary */
7.  /* all email addresses, with a flag to denote main or secondary */
8.  /* HCSPS demographic information */
9.  /* additional HCSPS demographic information that is not clear at this time */

We have meeting data metrics for parents including:

*   total accumulated meeting time
*   total number of meetings within the program
*   total results of parent-parent survey(s)

The system expects a maximum latency of **1 minute**. A typical peak load is 500 requests per second.

**Functional Requirements:**

*   Retrieval speed is the system's primary concern to ensure optimal user experience.  Therefore, it is imperative that you design a system that optimizes for extremely fast data retrieval.
*   Since the core data is already available from a central database and there is limited data transformation involved, we should refrain from using a regular relational database.
*   The system is designed to handle **high traffic and large volumes of data**.
*   The system will need to be designed to have **very low latency** (1 minute) and will need to support a peak load of **500 requests per second**.

**Non-Functional Requirements:**

*   The system should be designed to be highly available.
*   The system should be designed to be fault tolerant.
*   The system should be easy to maintain.

This document is being drafted in response to a larger data architecture project.  We will be managing a substantial amount of data.  We are seeking feedback on this project proposal from various technical stakeholders.

Here are some high-level questions regarding our data source solution we are looking for feedback on:

*   What are the advantages and disadvantages of using an in-memory data grid as a data source?[/INST]