Server Migration Checklist
Migrate without stress and without service interruption.
Server migration is a high-risk operation. An oversight can lead to hours of downtime, data loss, or hard-to-diagnose performance issues.
This checklist covers the most common migrations: hosting provider change, server upgrade, cloud migration. It's designed to minimize risks and interruption time.
The key to a successful migration is preparation. The more you prepare, the fewer surprises on D-day. Use this checklist several days before migration.
Phase 1: Preparation (D-7 to D-1)
Actions to perform before migration:
- seo.checklist_migration.before_1
- seo.checklist_migration.before_2
- seo.checklist_migration.before_3
- seo.checklist_migration.before_4
- seo.checklist_migration.before_5
seo.checklist_migration.dns_title
seo.checklist_migration.dns_intro
- seo.checklist_migration.dns_1
- seo.checklist_migration.dns_2
- seo.checklist_migration.dns_3
- seo.checklist_migration.dns_4
seo.checklist_migration.during_title
seo.checklist_migration.during_intro
- seo.checklist_migration.during_1
- seo.checklist_migration.during_2
- seo.checklist_migration.during_3
- seo.checklist_migration.during_4
seo.checklist_migration.after_title
seo.checklist_migration.after_intro
- seo.checklist_migration.after_1
- seo.checklist_migration.after_2
- seo.checklist_migration.after_3
- seo.checklist_migration.after_4
- seo.checklist_migration.after_5
Frequently Asked Questions
How long should I plan for a migration?
Depends on size. A simple migration can take 1h, a complex one several days. Always plan for more than needed.
How to migrate with zero downtime?
Use continuous synchronization, fast DNS switchover (low TTL), and test everything in advance. Perceived downtime can be near zero.
What if the migration fails?
Immediate rollback. That's why the rollback plan must be ready and tested beforehand. Never migrate without a safety net.
Should I migrate during weekday or weekend?
Depends on your audience. If traffic is lower on weekends, that's preferable. But make sure you have human resources available.
How to handle user sessions during migration?
Externalize sessions (Redis, database) or plan for users to reconnect. Warn them if necessary.
Should I notify users?
Yes, for migrations with downtime risk. Proactive communication reassures and avoids support tickets.
Migrate Serenely
A well-prepared migration is a successful migration. This checklist guides you through each step to avoid oversights and bad surprises.
MoniTao accompanies you during and after migration by monitoring your services on both old and new servers. You know immediately if something goes wrong.
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