Backup Software vs High Availability Software: What to Buy First
Backup and high availability solve different problems on IBM i. Here is how to decide which software layer to prioritize, and when the business needs both.
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Two software categories, two different guarantees
Backup software supports point-in-time recovery, retention, rollback, and ransomware recovery. High availability software supports uptime and fast failover through replication. Confusing the two during a purchase decision is one of the more expensive mistakes IBM i buyers make, because each category is judged by a different standard of success.
Deciding which to prioritize first
If the business can tolerate a restore-based recovery window and mainly needs protection against data loss, corruption, or ransomware, backup software should come first. If downtime itself is the primary cost, at any tolerance the business simply cannot absorb, high availability software becomes the priority, with backup software still required underneath it.
Why serious environments eventually need both
High availability alone does not protect against corruption or ransomware that replicates to the secondary copy before anyone notices. Backup alone does not protect uptime during a hardware or site failure. Manufacturing, distribution, healthcare, and financial IBM i environments typically need both layers, budgeted and evaluated as separate software purchases rather than a single combined line item.
All sections, listed like article footnotes.
Software catalog pages tied to this IBM i Backup and Recovery topic.
IBM FlashSystem Cyber Vault
A FlashSystem cyber recovery architecture built around immutable isolated copies, Storage Virtualize controls, recovery validation, and restricted administrative access.
IBM FlashSystem Safeguarded Copy
The IBM Storage Virtualize protected-copy function for FlashSystem and SVC environments, used to create isolated recovery copies for cyber resilience planning.
IBM i Backup SnapShot Software
An IBM i backup program built around creating identical LPAR copies quickly and backing up data without the same production impact as traditional methods.