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Migration · Backup

Migrating from Backup Exec to Veeam: a 90-day UK playbook

Servnet Editorial · Backup & DR Practice8 min read

Veritas Backup Exec served UK SMB + mid-market well for two decades but most organisations now migrate to Veeam Data Platform as Backup Exec reaches a natural refresh point or as ransomware-recovery demands modernisation. This is the 90-day playbook Servnet runs for UK customers, with the technical gotchas + the realistic timeline.

Backup Exec → Veeam — typical phasing
W0W2W4W6W8W10W12Discovery2wVeeam install2wParallel run4wCutover2wBE decom2wTotal: 12 weeks end-to-end

Why migrate

Modern architecture. Backup Exec's single-server architecture caps at modest scale; Veeam Backup & Replication scales horizontally with repositories, proxies and tape gateways.

Ransomware posture. Immutable repository options (hardened Linux, ReFS with lock, S3 Object Lock) are first-class in Veeam.

Workload breadth. M365, AWS, Azure, GCP, Kubernetes — all supported natively in Veeam.

UK skills market. Far more Veeam-trained engineers than Backup Exec for new hires + cover.

Days 1-14 — Discovery + design

Audit existing Backup Exec estate — protected workloads, retention policy, current repository capacity + utilisation, historic restore frequency.

Identify net-new Veeam repository sizing — Veeam compression + dedup typically reduces capacity needs by 30-50% vs Backup Exec.

Design immutability strategy — hardened Linux repository, Object First Ootbi, AWS S3 Object Lock, or dedicated tape gateway.

License sizing — Veeam Universal Licence (VUL) per workload. Workload count + retention drive total cost.

Days 15-30 — Deploy in parallel

Stand up new Veeam Backup Server (Windows Server 2022 + SQL Server / PostgreSQL).

Deploy backup proxies + repositories.

Connect to immutable target (S3 / Linux / Ootbi).

Pilot backup of 10-20% of workloads — confirm performance + restore.

Days 31-75 — Phased cutover

Move workloads in tier groups — Tier 3 (dev/test) first, then Tier 2 (file shares, email archive), then Tier 1 (production VMs, databases).

Run Backup Exec + Veeam in parallel for 30+ days minimum so you have both restore points during transition.

Each cutover: stop Backup Exec job, run Veeam first full, validate restore.

Veeam target architecture
ProductionVMs + physicalVeeam ProxyOff-host backupRepositoryXFS + immutableObject S3Capacity tierTapeArchive tier

Days 76-90 — Legacy decommission

Confirm Veeam has full retention coverage matching previous Backup Exec policy.

Stop final Backup Exec jobs. Retain Backup Exec server + storage for 90-180 days minimum for legal-hold restore.

Decommission Backup Exec licences at next renewal. Reallocate storage where possible.

Common gotchas

BEDIA agent uninstall — Backup Exec agents (BEDIA) need clean removal before Veeam agents go on Windows / Linux hosts. Test on pilot machine.

GFS rotation — Backup Exec GFS (Grandfather-Father-Son) translates to Veeam GFS but the syntax differs. Map carefully.

Tape — if you keep tape long-term, map LTO library Backup Exec partitions to Veeam tape gateway pools correctly.

What Servnet does

Servnet runs Backup Exec → Veeam migrations as a defined practice. Typical UK engagement: 90 days end-to-end, fixed-fee, with named project manager + Veeam VMCE-certified engineers.

Engagement includes: licensing procurement (we're a Veeam ProPartner), hardened repository deployment, phased cutover, documentation handover, and 30-day post-migration hypercare.

Key takeaways
  • 90 days end-to-end is the realistic UK timeline for typical 100-500 workload migrations.
  • Run parallel for minimum 30 days — you need both restore points during transition.
  • Immutability strategy (hardened Linux / S3 Object Lock / Ootbi) is essential for modern ransomware posture.
  • Veeam capacity sizing typically 30-50% smaller than Backup Exec due to compression + dedup improvements.
  • BEDIA agent uninstall + GFS rotation mapping are the common technical gotchas.
Frequently asked

FAQs — Migrating from Backup Exec to Veeam

Migration

Can we keep our Backup Exec historic backups?

Yes — retain the Backup Exec server + repository for 90-180 days minimum after Veeam cutover for legal-hold restore. Long-tail restore needs reduce significantly after 90 days.

Do we need new hardware for Veeam?

Often yes — Veeam likes more memory + faster storage than Backup Exec. Typical greenfield Veeam Backup Server: 2× Xeon, 64-128 GB RAM, NVMe boot + dedicated backup repository. Servnet quotes Dell PowerEdge + HPE ProLiant configurations sized for your workload.

Commercials

What does Veeam licensing cost vs Backup Exec?

Veeam Universal Licence (VUL) is per protected workload (VM / physical / cloud / Kubernetes). For 100 VMs, Veeam Data Platform Foundation: typically £8-15k/year. Backup Exec was per-TB; Veeam VUL usually 5-15% above equivalent Backup Exec at typical scale, with significantly more capability.

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