Zero-Downtime Elasticsearch Migrations — Expert AI-Native Execution

Elasticsearch-first expertise. 40% faster than industry standard. 2.4TB production migration proven. 60+ successful migrations. 24-hour response SLA.

Free 90-day roadmap — limited to 5 assessments per month

See our 2.4TB reference architecture ↓

Migration dashboard showing data flow from Splunk and Datadog to Elasticsearch with zero-downtime indicator and real-time metrics

Proven at Scale

Trusted by enterprises migrating production workloads from legacy observability platforms to Elasticsearch.

Fortune 500 BFSI Enterprise Healthcare Global Retail FinServ Leader Gov Contractor SaaS Enterprise
60+
Successful Migrations
2.4TB
Production Migration — Zero Downtime
15B
Documents Migrated

Elastic Innovation Award 2023

“SquareShift’s zero-downtime migration methodology gave us confidence to move from Splunk to Elasticsearch without business disruption. 15 billion documents migrated with zero data loss.”
— VP Engineering, Fortune 500 Financial Services

The Migration Problem You Already Know

Tool lock-in, migration complexity, and downtime risk slow enterprise adoption of modern observability. You’ve seen the numbers. You know the cost of staying. The question is how to leave without breaking production.

Legacy Tool Lock-In

Your team knows Splunk inside out. But the cost keeps climbing — 20-40% YoY increases on features you barely use. You’ve built custom dashboards, trained your team, and integrated 12 tools around it. The lock-in isn’t technical. It’s organizational.

See our methodology

Migration Complexity

Moving production data at scale isn’t a weekend project. Schema mapping, query translation, integration rewiring, validation testing — each one is a project in itself. Multiply by 15 billion documents and the complexity compounds.

See how it works

The Downtime Question

Your SLA guarantees depend on uptime. A failed migration means lost revenue, angry customers, and the meeting nobody wants to be in. Every vendor claims “zero-downtime.” None show you 2.4TB of proof.

See our proof

Data Loss Is Not an Option

Audit trails. Compliance logs. Operational analytics. One integrity error during migration and your SOC2 audit has a gap. Your CISO has questions. Your board has concerns. The data must arrive complete, verified, and audit-ready.

See compliance

Migration Guides: From Your Current Platform to Elasticsearch

Migrating from Splunk, Datadog, or OpenSearch? We've documented the technical considerations, cost implications, and migration strategies for each platform.

Splunk to Elasticsearch

Migration strategy, cost comparison, data volume scaling, search performance optimization, and timeline considerations.

View Migration Guide

Datadog to Elasticsearch

Observability migration path — APM transition, log forwarding, infrastructure monitoring setup, cost analysis at scale.

View Migration Guide

OpenSearch to Elasticsearch

Fork migration considerations — feature parity analysis, performance benchmarks, plugin compatibility, enterprise support transition.

View Migration Guide

Reference Architecture: 2.4TB Zero-Downtime Migration

Architecture, not slide decks. Here’s how we migrated 2.4TB of production data for a Fortune 500 financial services firm — with zero downtime and zero data loss.

Migration architecture diagram showing Splunk 12-index source, dual-write integration strategy, and Elasticsearch 6-node cluster destination with real-time validation checkpoints

Challenge

A Fortune 500 financial services firm needed to migrate 2.4TB of production observability data from Splunk to Elasticsearch. The constraints: zero downtime (SLA: 99.99% uptime), zero data loss (SOC2 audit trail required), and a 3-week validation window mandated by their compliance team. 12 Splunk indexes. 400GB/day ingest rate. 15 billion documents.

Solution

We deployed a dual-write migration strategy: the application writes to both Splunk and Elasticsearch simultaneously during migration. Custom ingest pipeline with schema validation handled the 12 index-to-shard transform rules. AI-assisted query rewriting converted 200+ Splunk SPL queries to Elasticsearch KQL — reducing manual translation from 6 weeks to 10 days. Real-time data consistency checks validated every document at ingestion.

Results

Migration completed in 8 weeks. Production traffic cut over with zero interruption.

2.4TB
Production Data
99.99%
Maintained Throughout
0%
Data Loss
40%
Cost Reduction

“Technical execution depth from architects, not generalist consultants.”

4-Phase Zero-Downtime Migration Methodology

Proven on 60+ production migrations. Every phase has rollback capability, validation gates, and defined acceptance criteria. No phase proceeds until the previous one passes.

Phase 1: Assessment

Deep audit of your current platform. We analyze data volume, retention policies, query patterns, integrations, and team skills. You get a Migration Assessment Report with precise scope, timeline, cost analysis, and risk map.

“15B documents, 12 integrations, 5 dashboards, 8-week timeline — scoped in 5 business days.”

Phase 2: Planning

Migration architecture design with rollback plan. We define the dual-write strategy, schema mapping, validation criteria, and team training schedule. Deliverable: Migration Blueprint with 200+ validation tests and rollback checkpoints at every milestone.

“Dual-write strategy designed. 200+ validation tests authored. Rollback tested before execution begins.”

Phase 3: Execution

Phased data migration with zero-downtime dual-write strategy. Data migrates in stages. Validation runs in real-time. Rollback capability stays active at every checkpoint. Your production environment continues to serve traffic without interruption.

“2.4TB migrated over 8 weeks. 99.99% uptime maintained. AI-assisted query rewriting converted 200+ SPL queries to KQL.”

Phase 4: Validation

Production smoke tests, performance benchmarking, compliance verification. We prove migration success with measurable outcomes and full audit trails. Deliverable: Runbook, performance report, compliance certification, team training completion.

“100% data integrity verified. 40% cost reduction confirmed. 50% query performance improvement measured.”

Get Migration Assessment Download Migration Methodology

Migration Timeline: 8-16 Weeks from Assessment to Production

Typical migration timeline with milestones, deliverables, and validation gates at every phase. Your team stays informed. Your production stays live.

Week 1-2

Assessment

Deliverable: Migration Assessment Report

Deep audit of your current platform. Data volume, retention policies, query patterns, integrations, team skills — all mapped. You receive a Migration Assessment Report with scope, timeline, cost analysis, and risk assessment within 5 business days.

Migration assessment audit checklist with data volume analysis Get Your Assessment
Week 3-4

Planning

Deliverable: Migration Blueprint

Migration architecture design with dual-write strategy, schema mapping, validation criteria, and team training plan. 200+ validation tests authored. Rollback tested. Blueprint signed off before execution begins.

Migration architecture diagram with dual-write strategy and rollback checkpoints See Migration Methodology
Week 5-12

Execution

Deliverable: Production Elasticsearch Cluster

Phased data migration with zero-downtime dual-write. Data migrates in stages with real-time validation and rollback capability at every checkpoint. 2.4TB production migration completed in 8 weeks with 99.99% uptime maintained.

Data flow animation showing phased migration from source platform to Elasticsearch See Migration Case Study
Week 13-16

Validation & Handoff

Deliverable: Runbook + Performance Report

Production smoke tests. Performance benchmarking. Compliance verification. Team training. Runbook delivery. 30-day post-migration support included. 24-hour response SLA active from Day 1.

Validation dashboard with performance benchmarks and compliance verification checkmarks Request Consultation

Why SquareShift for Your Elasticsearch Migration

Every vendor claims zero-downtime. We prove it. Here’s how SquareShift compares on the capabilities that matter to your migration.

Capability SquareShift Hyperflex BigData Boutique Industrial Resolution
Zero-Downtime Proof check_circle 2.4TB production proven cancel No proof warning Claimed, no proof cancel No proof
Multi-Source Support check_circle Splunk, Datadog, New Relic, OpenSearch warning Splunk focus only warning Multi-source claimed cancel Not specified
AI-Native Delivery check_circle AI-assisted planning + query rewriting cancel No AI tooling warning AI narrative, no tools cancel No AI tooling
Production Scale check_circle 15B documents, 2.4TB cancel No scale proof warning 50TB/8hrs (different use case) cancel No scale proof
Rollback Capability check_circle Checkpoint rollback at every phase cancel Not specified cancel Not specified cancel Not specified
24-Hour Response SLA check_circle Committed and resourced cancel Not specified warning 24/7 SLA (support, not migration) cancel Not specified
Proprietary Accelerators check_circle Topology Builder, Blast Radius, Log Reduction warning Splunk Migrator tool cancel No migration tools cancel No tools
vs. Hyperflex

Their Strength: Elastic-exclusive focus with Splunk Migrator tool and transparent pricing.

Hyperflex has no zero-downtime proof at production scale. SquareShift’s 2.4TB production migration with 99.99% uptime exceeds any published competitor proof. Our AI-assisted query rewriting converts SPL to KQL 40% faster than manual translation.

vs. BigData Boutique

Their Strength: Deep technical expertise with 24/7 SLA support.

No migration-specific methodology. No rollback framework. No dual-write architecture proof. SquareShift’s 4-phase migration framework with checkpoint rollback and 100% data integrity validation is purpose-built for zero-downtime migrations.

vs. Industrial Resolution

Their Strength: Named packages and AWS Marketplace presence.

No published migration metrics, no case study proof, no scale evidence. SquareShift’s 15B documents migrated and Elastic Innovation Award 2023 demonstrate execution depth that named packages cannot replicate.

Migration Accelerators: Reduce Risk, Accelerate Delivery

Proprietary tools built from patterns across 60+ migrations. Each one reduces a specific risk vector or compresses a specific timeline phase.

Topology Builder

Maps your current Splunk or Datadog topology to Elasticsearch architecture automatically. Uncovers hidden dependencies, integration points, and migration risks before execution begins.

Used in 40+ migrations

See Topology Builder

Blast Radius Analyzer

Pre-migration impact analysis. Predicts what breaks when you migrate — downstream dashboards, alerting rules, integration endpoints — and generates a rollback plan before you commit.

80% risk reduction

Request Demo

Log Reduction Engine

Intelligent log sampling reduces data volume by 60% without losing signal. Cuts migration timeline and storage cost. Your migration moves less data and finishes faster.

60% data reduction proven

Calculate Savings

AI Triage Assistant

LLM-powered alert triage during migration. Suppresses false positives by 90% while maintaining observability coverage. Your on-call engineers focus on real issues, not migration noise.

90% false positive reduction

See AI Triage Demo

Enterprise-Ready Migration with Compliance Continuity

SOC2, HIPAA, PCI-DSS audit trail preservation. Your compliance posture survives migration. Guaranteed.

Audit Trail Preservation

Every migration event logged with immutable audit trail. Compliance-ready from Day 1. Your auditors see continuous, unbroken event history through the entire migration window. No gaps. No missing entries.

SOC2-compliant migration methodology

Data Residency Control

Migrate data with geographic residency requirements intact. GDPR and HIPAA compliance preserved throughout migration. Data stays where regulations require it to stay — even during transfer.

HIPAA-compliant migrations

Zero Data Loss Guarantee

100% data integrity validation at every checkpoint. Cryptographic verification confirms every document arrives complete and unmodified. 2.4TB production migration achieved 0% data loss with full audit trail preservation.

2.4TB migration, 0% data loss

24-Hour Response SLA

All migration inquiries answered within 24 hours. Not an automated acknowledgment — a qualified human response with next steps. Resourced across Americas, Singapore, and Chennai time zones.

See SLA details
24-HOUR RESPONSE SLA All migration inquiries answered within 24 hours. Guaranteed.
2.4TB
Migrated
99.99%
Uptime Maintained
0%
Data Loss
SOC2
Compliant Methodology

2.4TB Production Migration: The Full Story

Fortune 500 Financial Services. Splunk to Elasticsearch. Zero downtime. Zero data loss. 40% cost reduction. Here’s what happened.

Case study dashboard showing 2.4TB migration metrics: 99.99% uptime maintained, 0% data loss, 40% cost reduction, 8-week timeline completion

Fortune 500 Financial Services (BFSI)

Splunk to Elasticsearch Migration

Challenge

Migrate 15B documents from Splunk to Elasticsearch without business disruption. SOC2 compliance required continuous audit trail preservation. 12 indexes, 400GB/day ingest rate, 3-week compliance validation window.

Solution

SquareShift’s 4-phase zero-downtime migration methodology with dual-write strategy, AI-assisted query rewriting (200+ SPL-to-KQL conversions), and checkpoint rollback at every phase.

Results

  • 2.4TB production migration with 0% data loss
  • 99.99% uptime maintained throughout 8-week migration
  • 40% observability cost reduction (Splunk vs. Elasticsearch TCO)
  • 200+ queries converted via AI-assisted rewriting in 10 days
  • Team operational on Elasticsearch within 2 weeks of cutover
Read Full Case Study
Video Testimonial
VP Engineering, Fortune 500 Financial Services
60-90 second case study overview
60+
Successful Migrations
2.4TB
Production Migration — Zero Downtime
15B
Documents Migrated — 100% Data Integrity

Migration Engagement Pricing

Transparent pricing for packaged migration engagements. SOW-based with defined acceptance criteria. No surprises.

Pricing Based on Proven Methodology: 60+ migrations, 2.4TB production scale, 0% data loss

Feature Express MOST POPULAR
Standard
Enterprise
Price $25K Custom
Best For <500GB, <10M documents >5TB, >1B documents
Timeline 4-6 weeks 12-16 weeks
Methodology 4-phase framework 4-phase + full accelerator suite
Validation Tests 50+ 500+
Team Size 2-3 consultants 8-10 consultants
24-Hour SLA check_circle Included check_circle Included
Get Assessment

Starting at $25K

Request Consultation

Starting at $75K

Contact Sales

Custom pricing

What’s Included in Every Tier

  • 4-phase methodology (assessment, planning, execution, validation)
  • Zero-downtime dual-write strategy
  • Rollback capability at every checkpoint
  • 100% data integrity validation
  • Team training and runbook handoff
  • 30-day post-migration support
  • 24-hour response SLA

Pricing Questions

All migration engagements include: 4-phase methodology (assessment, planning, execution, validation), zero-downtime dual-write strategy, rollback capability, 100% data integrity validation, team training, runbook handoff, 30-day post-migration support, and 24-hour response SLA. Express and Standard tiers show “starting at” pricing. Full scope and cost confirmed after assessment.

Enterprise pricing is based on data volume, complexity (number of integrations, custom dashboards, query patterns), timeline requirements, and accelerator needs. After assessment, we provide a fixed-price SOW with milestones and acceptance criteria. No open-ended billing.

Yes. Express and Standard migrations show “starting at” pricing on this page. Full pricing details — including accelerator add-ons and Managed Services tiers — are provided after assessment. We quote fixed-price SOWs, not estimates that inflate mid-engagement.

All engagements are SOW-based with defined acceptance criteria per phase. If scope changes, we issue a change order with updated timeline and cost before proceeding. You approve the change order. No surprise invoices.

Yes. Standard and Enterprise migrations support milestone-based payment: 25% after assessment, 25% after planning, 25% after execution, 25% after validation. You pay when each phase delivers its defined output.

Yes. Managed Services tiers (Tier 1/2/3) are available post-migration with 24/7 SLA-backed support. Custom pricing based on environment size and SLA requirements. Migration + Managed Services can be bundled.

Learn about Managed Services

Migration Questions Engineers Actually Ask

Not the softball FAQ. The questions your VP Engineering asks before signing a migration SOW.

We use a dual-write migration strategy. During migration, your application writes to both the source platform (Splunk, Datadog, or OpenSearch) and Elasticsearch simultaneously. Production traffic continues uninterrupted. We validate data integrity in real-time and switch traffic only after 100% validation passes. Rollback capability remains active at every checkpoint.

Proof: Our 2.4TB production migration maintained 99.99% uptime over 8 weeks.

Read full case study

Every migration includes 100% data integrity validation with cryptographic verification at every checkpoint. We validate during assessment, planning, execution, and validation phases. Rollback triggers automatically if any validation check fails. Our 2.4TB production migration achieved 0% data loss with full audit trail preservation. SOC2-compliant methodology documented.

See migration methodology

Migration timelines depend on data volume and complexity:

  • Express (<500GB): 4-6 weeks
  • Standard (500GB-5TB): 8-12 weeks
  • Enterprise (>5TB): 12-16 weeks

All timelines include assessment, planning, execution, and validation phases. Our 2.4TB production migration completed in 8 weeks. Timelines are fixed in the SOW with milestone-based delivery.

Typical migration ROI shows 40-90% cost reduction over 3 years when comparing Splunk or Datadog TCO to Elasticsearch TCO. The migration itself costs a fraction of one year of continued legacy tool pricing. Use our TCO calculator to estimate your specific savings based on your data volume and retention policies.

Calculate your TCO savings

Yes. We support migrations from Splunk, Datadog, New Relic, OpenSearch, and legacy Elasticsearch — including simultaneous multi-source consolidation. We’ve migrated customers consolidating 5+ observability tools into a single Elasticsearch deployment. Your heterogeneous stack is not a blocker.

Every migration includes team training, operational runbook handoff, and 30-day post-migration support. Your team receives hands-on Elasticsearch training during the migration itself — not a separate course after the fact. If you want ongoing expert support, Managed Services are available with 24/7 SLA-backed operations. 24-hour response SLA applies from Day 1.

Learn about Managed Services

Still have questions? Talk to a migration architect.

Book 30-Minute Consultation

Stop Paying the Splunk Tax. Start Your Migration Assessment.

90-day migration roadmap with cost analysis, risk assessment, and zero-downtime execution plan. 24-hour response SLA guaranteed. No credit card required.

90-day roadmap with cost analysis and risk assessment

24-Hour Response SLA
No Credit Card Required
No Long-Term Contract

All migration inquiries answered within 24 hours. Learn about our SLA commitment