Relay-Based · SSH-Free · Near-Zero Downtime Migration

No SSH access needed.
Data migrates through a secure relay gateway.

SyncDataGuard's relay pulls from source and pushes to target — no direct server-to-server connection required. Works through firewalls, air-gapped networks, and security-restricted environments. From scan to verified cutover, all from one web UI.

Start free trial → Why SyncDataGuard?
16×
Parallel streams
100%
Data integrity
0
Vendor lock-in
SyncData Guard — Live monitor
❯ sdg migrate --parallel 16 --bwlimit 5g --depth 4

✓ Connection verified nas-src.corp → nas-dst.corp
✓ Scan complete 8,432,110 files · 312 TB
⟳ Migrating... (chunk split · 16 parallel)

Overall
68%
/archive
Done
/logs
81%
/media
30%

Speed 4.8 GB/s  ETA ~4h 18m

$ _
🔄 Relay Gateway Architecture

The only migration tool that works
without touching production servers.

Most tools require SSH access, credential sharing, or agent installation on production servers. SyncDataGuard's relay gateway is different — it sits between source and target, pulling and pushing data without any direct server-to-server connection.

✓ No SSH keys or passwords on production servers
✓ Works through firewalls — only one port needed per server
✓ Supports air-gapped and security-restricted environments
✓ 9 source-target combinations: SSH, Agent, or Local — any mix
How relay works
Source Server
SSH / Agent / Local
→
SyncDataGuard
Relay Gateway
→
Target Server
SSH / Agent / Local
No direct source↔target connection · Relay handles all traffic
SSH → SSH
Agent → Agent
SSH → Agent
Agent → SSH
Local → Agent
+4 more
Why SyncData Guard?

Services stay up.
Data moves.

Traditional migration requires direct server-to-server access, SSH keys, or expensive vendor agents. SyncDataGuard uses a relay gateway — it pulls data from the source and pushes to the target, so production servers are never directly exposed. Services stay up. Data moves safely.

Feature Plain rsync Vendor tool SyncData Guard
GUI monitoring✕△ Limited✓
Cross-vendor migration✕✕✓
Petabyte stability✕△ Same vendor only✓
Chunk parallel transfer✕✕✓
Scheduled automation✕△ Manual setup✓
Integrity report✕△ Limited✓
Offline install✕✕✓
🔄 Relay gateway (no direct server access)✕✕✓ All plans
🤖 Agent mode (No SSH, no credential exposure)✕✕✓ Enterprise
Bandwidth control (zero service impact)✕△ Limited✓
CostLow (labor cost↑)$100K+Affordable
Web UI (browser only)✕△ Separate client✓
Storage analysis → scan → migrate → verify → report. All in one.✕✕✓
One pipeline

Storage analysis to final report.
All in one workflow.

No rsync knowledge needed. Server setup, scan, migration, integrity verification, and report — all from one web UI, no other tools required.

✓ No rsync command-line knowledge needed
✓ Access via browser immediately after install
✓ Migration done = Report ready = Cutover decision made
✓ No additional tools or scripts needed
🔌
1. Register servers
Connect source & target servers
Click
↓
🔍
2. Scan & configure
File count, size, parallel & chunk settings
Click
↓
⚡
3. Run migration
Live monitoring · bandwidth control
Click
↓
📑
4. Verify & report
Integrity check → download HTML report
Done
Core features

Every tool you need for
near-zero downtime migration.

From launch to verification — one solution handles it all.

⚡

Parallel chunk transfer

Split large folders into N chunks and transfer with up to 16 simultaneous streams.

Enterprise: up to 16 streams
📊

Real-time monitoring

Live WebSocket dashboard shows per-folder progress, speed, ETA, and error logs.

All plans
🎛

Bandwidth control

Precise bandwidth limits keep production services online throughout migration.

Zero disruption
📑

Verify and cut over instantly

The moment migration completes, file counts and checksums are verified automatically. That moment is your cutover. No downtime required. — minimizing switchover time.

Instant cutover decision
📅

Automation & Data Replication

Automate recurring sync with daily, weekly, monthly, or Cron schedules. Replicate critical data to remote servers for schedule-based DR and business continuity. (Batch sync · Pro or higher)

Pro · Enterprise
⏸

Pause & resume / Error tracking

Stop anytime and resume from where you left off. Completed folders are skipped. All errors logged per file and downloadable.

Full control
🔬

MD5 Precision Verification — DB Index Accelerated

After migration, every file's MD5 checksum is compared between source and target. A built-in DB index stores checksums from previous runs — so re-verification is near-instant, with no re-scanning needed. Missing files and mismatches are reported immediately.

All plans · Instant re-verify with index
🤖

Agent Mode — No SSH Required

Install a lightweight agent on the source server. SyncData Guard migrates via rsync daemon — no SSH keys, no passwords exposed. Ideal for security-sensitive environments and air-gapped networks.

Enterprise · Zero credential exposure
🪟

Windows Server Migration

Add Windows Server 2016+ as a migration source or target over SSH. SyncData Guard itself runs on Linux — no installation required on Windows beyond a lightweight, Python-free SSH toolkit.

All plans · Linux ↔ Windows
Architecture

Any environment.
Any combination.

SyncDataGuard supports 9 source-target combinations. The relay gateway handles all traffic — no direct server-to-server connection ever required. SSH, Agent, or Local — any combination works.

Best MODE 1

Remote → Remote

Between rsync-capable servers · NAS

SyncData Guard orchestrates only. rsync runs source-to-target directly — maximum throughput, petabyte-optimized.

Source server · NAS
Isilon / Synology
→
Target server · NAS
NetApp / QNAP
🖥 SyncData Guard (orchestrate)
✓ Fastest · 100% bandwidth · Petabyte-optimized
MODE 2

Local(NAS) → Local(NAS)

NFS/SMB mount-based

Mount both NAS via NFS/SMB to SyncData Guard. Works with any vendor — no rsync, no agent needed.

Local(NAS)
NFS mount ↓
+
Local(NAS)
NFS mount ↓
🖥 SyncData Guard (relay)
✓ Vendor-agnostic · No rsync · HNAS · NetApp
MODE 3

Local ↔ Remote

Mixed or single-server

SyncData Guard server acts as source or target. File server→NAS, NAS→cloud, or same-server partitions.

SyncData Guard server
source & control
⇄
Remote server · NAS
any vendor
SSH over rsync · NFS/SMB
✓ Flexible topology · NAS mount support
🤖 MODE 4 Enterprise

Agent Mode — No SSH

Zero credential exposure · Security-first · 9 combinations

Install a lightweight agent on source, target, or both. Migration via rsync daemon through SyncDataGuard's relay — no SSH keys, no passwords transmitted. Supports all 9 source-target combinations including Agent→Agent, Agent→SSH, SSH→Agent, and Local→Agent.

Source (Agent)
🤖 port 8099
→relay→
Target (Agent)
🤖 port 8099
🔒 Relay gateway · No SSH · Token auth · 9 modes
✓ No SSH keys · No passwords · RHEL 7+ · Air-gapped · Agent↔Agent supported
✅ Verified NAS / server compatibility
Dell EMC Isilon
SSH+rsync direct
OneFS · PowerScale
Synology
SSH+rsync direct
DSM · All models
QNAP
SSH+rsync direct
QTS · QuTS hero
NetApp ONTAP
NFS mount
FAS · AFF · ONTAP
Hitachi HNAS
NFS/SMB mount
EVS architecture support
IBM Spectrum Scale
Mount migration
GPFS
Any rsync-capable Linux server · NAS connects directly · NFS/SMB mount covers everything else
Supported OS for SyncData Guard server (NAS OS does not matter)
CentOS7 · 8 · 9
Rocky Linux8 · 9
AlmaLinux8 · 9
RHEL7 · 8 · 9
Ubuntu18.04 ~ 24.04
Debian10 · 11 · 12
Package manager auto-detection (apt/dnf/yum) · Full offline install · Future OS versions auto-supported
Migration history & prediction

"How long will the next migration take?"
Now you have a data-driven answer.

Each migration run reduces the delta. With history-based prediction, even 312 TB finishes in ~1 hour on final cutover — minimizing service downtime to an absolute minimum.

Speed · duration · file count logged per job
Auto-calculated ETA for next migration
Integrity report enables immediate cutover decision
Evidence base for management reports & scheduling
📊 Migration prediction
Data size312 TB
Avg speed4.8 GB/s
Based on3 prior jobs
Final migration~1 hour
(delta sync only)
94% confidence
Live migration report

Report generated
the moment migration completes.

A complete HTML report is auto-generated at completion — everything you need to make a go/no-go cutover decision.

migration-report_2026-06-04.html

✅ Migration Complete

nas-src.corp:/data → nas-dst.corp:/data
Job namemigration-job_2026-06-04_final
Started6/4/2026, 10:00:00 AM
Finished6/4/2026, 11:02:18 AM
Parallel16
Bandwidth5 Gbps
ChecksumON
Chunk16 splits
48 / 48
Done
0
Failed
312 TB
Total Size
1h 2m
Duration
4 Lv
Migration Depth
8,432,110 / 8,432,110
Files Migrated
4.8 GB/s
Avg Speed
100%
Success Rate
Folder
Folder Depth Status Size Files Duration
archive/2023/Q1/3 LvCompleted24.8 TB812,44018m 32s
archive/2023/Q2/3 LvCompleted31.2 TB1,024,81022m 14s
media/images/2024/3 LvCompleted58.4 TB2,841,20041m 08s
logs/app/2024/3 LvCompleted12.1 TB1,923,4008m 41s
… 44 more folders (48 total)
🔍 Integrity Verification Results
✅ Verification Complete — All Files Match   ⚡ Checksum Verified · 6/4/2026, 11:05:00 AM
48/48
OK Folders
0
Mismatched
8,432,110 → 8,432,110
Total Files
0
Missing Files
0
Checksum Mismatch
SyncData Guard by CloudFactory  ·  support@syncdataguard.com
📊

Auto-generated on completion

No manual steps. HTML report is generated automatically when migration finishes.

✅

Instant cutover decision

Use the integrity verification results as your definitive go/no-go for service cutover.

📁

Single HTML file

Self-contained HTML file — archive, share, or submit as a formal report with no dependencies.

Free Trial

Get Started Now.

Ready to use right after installation. No credit card · 7-day free trial · Basic features available without a license

🐧
Linux (x86_64)
CentOS 7+, Ubuntu 18.04+
Debian 10+, RHEL 7+
⬇ Download
v3.07 · ~45MB
✓No credit card
✓7-day free trial
✓Offline install supported
✓Ready immediately after install

Install: unzip rsync-migrator-*.zip && sudo bash install.sh

Pricing

One-time purchase.
Yours forever.

Perpetual license per copy. One-time purchase, yours forever.

Basic
For small teams with straightforward migration needs.
$590
$490/license
17% OFF
Updates & technical support: contact us
✓All transfer modes (local ↔ remote)
✓Real-time monitoring
✓Integrity verification
✓1 parallel stream
–Scheduled migration
–Windows Server migration (SSH)
–Chunk parallel transfer
–Storage analytics
Most popular
Pro
For IT teams with recurring migration workflows.
$2,390
$1,990/license
17% OFF
Updates & technical support: contact us
✓Everything in Basic
✓Scheduled migration (daily/weekly/Cron)
✓Bandwidth control
✓Up to 4 parallel streams
–Windows Server migration (SSH)
✓Integrated report
–Chunk parallel transfer
–Storage analytics
Enterprise
For large-scale infrastructure, security-sensitive environments, enterprises and public institutions. Multi-server deployment available for TB-scale migrations (contact us for additional instances).
$11,990
$9,990/license
17% OFF
Updates & technical support: contact us
✓Everything in Pro
✓Chunk parallel transfer (unlimited)
✓Up to 16 parallel streams
✓Windows Server migration (SSH)
✓Storage analytics · history tracking
✓Air-gapped · offline install
✓🤖 Agent Mode — No SSH required
※ The agent program is provided separately — email support@syncdataguard.com after your Enterprise purchase.
✓Dedicated support
1 server per license · Additional servers at 50% · 7-day free trial · No credit card required · Maintenance & support: contact us
📄 Download Enterprise & Custom Pricing Sheet (PDF)