SQL Server LLD Requirements

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Service Tier

Database Server Location(s)

Database Server Edition  (and why - Enterprise Edition needs to be justified)

Database Server version (including SP and Operating system) and compatibility modes

Designated Infrastructure platform

Local database High Availability Requirements (not catered for by underlying resilience of infrastructure platform)

Database DR Requirements - including technology stack and explanation

Breakdown of servers , instances and databases

Support for named Instances

SQL Server Collation

Data Management Tools- GDPR , weeding, retention and tool

Database Management Tools - e.g. application level data replication tools

Additional SQL Server Features over and above Engine and Management Tools e.g. SSRS, SSIS, SSAS


 Demand management
Estimated transactions per day
Estimated concurrent connections (users)
Estimated I/O requirements (Mb/hour)
Maximum Database Size / Growth rates per year

Support for KP/EP logical drive separation standards

C: OS - 80Gb
D: data
L: Logs
T: Tempdb


Support for Mixed Authentication?

Support for Virtualization - recommended VPCU's per DB server?

Recommended RAM Requirements

System recovery point objective requirements

Ports for SQL Server instance(s)




Database logins and authentication and  administrative level requirements

DB Security and Encryption requirements

Database design diagram

Description of database server(s) function. Simple explanation of data flows and relationships between database servers, instances and databases

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