Hot Standby DR

Your DR is Already Running.

Not cold images. Not restore jobs. Live standby VMs ready to take over.

Sendense replicates your VMs to a hot standby at your DR site. When you need to failover — test, planned, or emergency — it's a button click, not a restore operation.

15m
RPO
Continuous sync
<5m
Failover
Entire estate
500+
VMs
Simultaneous failover
$0
vTax
DR on CloudStack

Test. Plan. Respond.

Three failover modes for every scenario. Test your DR anytime without disrupting production. Execute planned migrations during maintenance windows. Respond instantly to emergencies.

Test Failover

Validate your DR readiness anytime. Spin up your standby VMs in isolation, run your tests, then roll back with one click. Production stays untouched.

  • Non-disruptive testing
  • Automatic rollback
  • Evidence for auditors

Planned Failover

Migrating data centers? Scheduled maintenance? Execute a controlled failover with final sync, then commit when ready. Full control, zero panic.

  • Final sync before cutover
  • Commit or rollback option
  • Zero-downtime migrations

Emergency Failover

Site down? Ransomware? Fire? Your standby VMs are already running and synced. Hit the button, fail over your entire estate in under 5 minutes.

  • Instant activation
  • No restore delay
  • Hundreds of VMs at once

See the Difference.

Cold recovery means waiting. Hot standby means running. Sendense keeps your DR site ready — not waiting to be built.

Hot Standby vs Cold Recovery comparison

Hot Standby.
Not Cold Recovery.

Traditional DR means restoring from backup when disaster strikes. That takes hours. Sendense keeps live standby VMs at your DR site, continuously synced and ready to run.

Standby VMs Already Running

Your DR VMs exist at the destination site, continuously receiving block-level updates. Failover activates them — no provisioning required.

Continuous Sync, Minimal Data Loss

Configurable sync intervals down to 15 minutes. Only changed blocks transfer, keeping your RPO tight and bandwidth efficient.

Rollback When You Need It

Test failovers can be rolled back instantly. Planned failovers give you a commit window. Emergency failovers protect your business.

Live DR Status
Production Site
Source
142 VMs● Synced
DR Site (CloudStack)
Hot Standby
142 VMs● Synced
Last Sync2 minutes ago
RPO StatusWithin Target (15m)

Traditional DR Cost

VMware DR Site Licenses$$$$$
DR Infrastructure$$$$
WAN/MPLS Circuits$$$

Sendense DR Cost

CloudStack/OSSEA DR SiteNo vTax
Standard InfrastructureYour Choice
Internet + TLS TunnelNo Circuits
Cost Reduction

DR Without the vTax.

Why pay VMware license fees on infrastructure that sits idle 99% of the time? Sendense replicates your VMware VMs to CloudStack, OSSEA, or Azure — platforms without per-CPU licensing.

Your DR site runs on open-source infrastructure. Same protection, fraction of the cost.

Multi-Site

Multi-Site DR. No WAN Circuits.

Traditional multi-site DR requires expensive MPLS or VPN circuits between locations. Sendense uses secure TLS tunnels over standard internet connections. Outbound-only from remote sites — no firewall holes, no circuit provisioning.

London HQ

Healthy
Protected VMs142
Current RPO12m
ConnectionTLS Tunnel

New York DC

Healthy
Protected VMs89
Current RPO14m
ConnectionTLS Tunnel

Singapore Site

Healthy
Protected VMs215
Current RPO11m
ConnectionTLS Tunnel

Know Your DR is Ready.

Continuous health monitoring, pre-flight checks, and real-time status. Know your DR readiness before you need it.

Health Monitoring
Pre-Flight Checks
Sync Status Tracking
RPO Compliance
Failure Alerting
Audit Trail

Stop Hoping.
Start Protecting.

If your DR plan takes hours, it's not a plan. It's a risk. Experience hot standby DR with test, planned, and emergency failover modes.

No credit card required. Deploy in 30 minutes.