Understanding complete assessment data requirements
The following table describes the information required to obtain a complete portfolio view of the applications in the migration and their associated infrastructure.
The tables use the following abbreviations:
R, for required
O, for optional
N/A, for not applicable
Applications
Attribute name | Description | Inventory and prioritization | Detailed business case | Recommended fidelity level (minimum) |
|---|---|---|---|---|
Unique identifier | For example, application ID. Typically available on existent CMDBs or other internal inventories and control systems. Consider creating unique IDs whenever these are not defined in your organization. | R | R | High |
Application name | Name by which this application is known to your organization. Include commercial off-the-shelf (COTS) vendor and product name when applicable. | R | R | High |
Is COTS? | Yes or No. Whether this is a commercial application or internal development | R | R | High |
COTS product and version | Commercial software product name and version | R | R | High |
Description | Primary application function and context | R | R | High |
Criticality | For example, strategic or revenue-generating application, or supporting a critical function | R | R | High |
Type | For example, database, customer relationship management (CRM), web application, multimedia, IT shared service | R | R | High |
Environment | For example, production, pre-production, development, test, sandbox | R | R | High |
Compliance and regulatory | Frameworks applicable to the workload (for example, HIPAA, SOX, PCI-DSS, ISO, SOC, FedRAMP) and regulatory requirements | R | R | High |
Dependencies | Upstream and downstream dependencies to internal and external applications or services. Non-technical dependencies such as operational elements (for example, maintenance cycles). | R | O | High |
Infrastructure mapping | Mapping to physical and/or virtual assets that make up the application | R | R | High |
License | Commodity software license type (for example, Microsoft SQL Server Enterprise) | R | R | Medium-high |
Cost | Costs for software license, software operations, and maintenance | O | R | Medium-high |
Business unit | For example, marketing, finance, sales | R | R | High |
Owner details | Contact information for application owner | R | R | High |
DR information | Disaster recovery components | R | R | High |
Migration strategy | For example, one of the 6 Rs for migration to AWS | R | R | High |
Support tickets | 12–24 months of data to help assess the productivity and financial impact of outages, slow downs, transaction throttling, and batch window overruns | O | R | Medium |
Infrastructure
Attribute name | Description | Inventory and prioritization | Business case | Recommended fidelity level (minimum) |
|---|---|---|---|---|
Unique identifier | For example, server ID. Typically available on existing CMDBs or other internal inventories and control systems. Consider creating unique IDs whenever these are not defined in your organization. | R | R | High |
Network name | Asset name in the network (e.g., hostname) | R | R | High |
DNS name (fully qualified domain name, or FQDN) | DNS name | R | O | High |
IP address and netmask | Internal and/or public IP addresses | R | R | High |
Asset type | For example, physical or virtual server, hypervisor, container, device, database instance | R | R | High |
Product name | Commercial vendor and product name (for example, VMware ESXi, IBM Power Systems, Exadata) | R | R | High |
Operating system | For example, REHL 8, Windows Server 2019, AIX 6.1 | R | R | High |
Configuration | Allocated CPU, number of cores, threads per core, total memory, storage, network cards | R | R | High |
Utilization | CPU, memory, and storage peak and average. Database instance throughput. | R | R | High |
License | Commodity license type (for example, RHEL Standard) | R | R | High |
Application mapping | Applications or application components that run in this infrastructure | R | R | High |
Cost | Fully loaded costs for bare-metal servers, including hardware, maintenance, operations, storage (SAN, NAS, object), operating system license, share of rack space, and data center overheads | O | R | Medium-high |
Estimated volume of data transfer (in/out) | For example, per infrastructure asset per day over a 30-day period | O | R | Medium |
Networks
Attribute name | Description | Inventory and prioritization | Business case | Recommended fidelity level (minimum) |
|---|---|---|---|---|
Size of pipe (Mb/s), redundancy (Y/N) | Current WAN link specifications (for example, 1000 Mb/s redundant) | R | R | Medium-high |
Connected locations | Named locations connected by this link | R | O | High |
Link utilization | Peak and average utilization, outbound data transfer (GB/month) | R | R | Medium-high |
Latency (ms) | Current latency between connected locations. | R | O | High |
Cost | Current cost per month | N/A | R | Medium-high |
Migration
Attribute name | Description | Inventory and prioritization | Business case | Recommended fidelity level (minimum) |
|---|---|---|---|---|
Rehost cost | Customer and partner effort for each workload (person-days), customer and Partner cost rates per day, tool cost, number of workloads | N/A | R | Medium-high |
Replatform cost | Customer and partner effort for each workload (person-days), customer and partner cost rates per day, number of workloads | N/A | R | Medium-high |
Refactor cost | Customer and partner effort for each workload (person-days), customer and partner cost rates per day, number of workloads | N/A | R | Medium-high |
Retire cost | Number of servers, average decommission cost | N/A | R | Medium-high |
Landing zone | Re-use existing (Y/N), list of AWS Regions needed, cost | N/A | R | Medium-high |
People and change | Number of staff to train in cloud operations and development, cost of training per person, cost of training time per person | N/A | R | Medium-high |
Duration | Duration of in-scope workload migration (months) | O | R | Medium-high |
Parallel cost | Time frame and rate at which as-is costs can be removed during migration | N/A | R | Medium-high |
Time frame and rate at which AWS products and services, and other infrastructure costs, are introduced during migration | N/A | R | Medium-high |
