Flexible foundations

Separate the workloads. Manage the shared resources.

Virtualised environments that make application boundaries and resource allocation easier to understand.

Discuss the work
Illustrative engineering modelPlanning, not a live environment
Guest system

A guest has its own operating context.

Applications and their configuration belong to a defined virtual machine.

To agreeAccess / change / recovery
01Inside the work

Know what the separation is for.

Virtual machines can isolate operating environments, consolidate infrastructure or support a staged migration. Identify the workload boundary and the operational benefit before deciding what should share a host.

02Inside the work

Account for contention.

CPU, memory, storage and network capacity are shared resources. Measure the demands of neighbouring workloads and test what happens when they are busy together. A guest’s allocation does not, by itself, explain the performance it will receive.

Illustrative private environment · not a customer system
Plan of an illustrative private environment: a core ledger database, two application servers, a batch runner and a document store inside a private boundary, with a backup target in a separate failure domain, identity and a bastion in management, and a customer channel and partner API outside.EXTERNALpublic networks2 named entry pointsPRIVATE ENVIRONMENTyour infrastructure5 workloads · one boundaryMANAGEMENToperatorsno direct accessSEPARATE FAILURE DOMAINCustomer channelweb · mobilePartner APIsigned inboundApplication servernode 01Application servernode 02Batch runnernightly 02:10Core ledger DBsys. of recordDocument storescans · PDFsBackup targetrestorableBastionaudited accessIdentitySSO · MFA Plan of an illustrative private environment: a core ledger database, two application servers, a batch runner and a document store inside a private boundary, with a backup target in a separate failure domain, identity and a bastion in management, and a customer channel and partner API outside.EXTERNALpublic networksPRIVATE ENVIRONMENTyour infrastructureMANAGEMENToperatorsSEPARATE FAILURE DOMAINCustomer channelweb · mobilePartner APIsigned inboundApplication servernode 01Application servernode 02Core ledger DBsys. of recordDocument storescans · PDFsBatch runnernightly 02:10Backup targetrestorableIdentitySSO · MFABastionaudited access
Place, bound, control, recover. The plan is drawn before the first server is ordered.
03Inside the work

Check what the application assumes.

Review operating-system requirements, hardware access, networking and software licences. Include the background jobs and connected systems that are easy to miss when testing only the main application screen.

04Beyond the demonstration

A snapshot is not the recovery plan.

Protect backups separately and test the route back to a working service. Restoring a virtual disk may still require database consistency, credentials, network configuration and another application to be available.

05Inside the work

Move with a way back.

Inventory the current environment, rehearse the move and check the application under representative use. Record configuration and rollback steps so the people operating the platform can repeat the work.

A CLEARER NEXT STEP

Assess a virtualisation requirement

From an unanswered question
to an engineered possibility.

Assess a virtualisation requirement
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