IBM Storage FlashSystem the best choice you can ever make
Use Cases and Deployment Scope
IBM Storage FlashSystem product is able to add 'intelligence' on storage subsystem like Flashcopies or more recently snapshots to add some flexibilty on backup or creating a clone partition (with our without additionnal tools).
IBM Storage FlashSystem is also able to virtualize other storage systems which can be interesting when migrating systems without having to deal with a complete save/restore operation (a great way to minimize downtime during this king of operations).
Another great advantage of IBM Storage FlashSystem is the ability to provide a complete DRP, replacing complex software products at no cost or so. Side by side migration using replication is another use case here (when I do not want to virtualize other storage subsystems).
As you can see, as an integrator, I am using a lot of advanced functionalities and would be happy to discover new ones.
Pros
- Replication services providing a complete DRP (Disaster Recovery Plan) for most IBM i use cases:
- - Based on replication services,
- - Can provide active/passive replication via copy services or Policy-based replication (PBR),
- - Can provide active/active replication via Hyperswap or Policy-based High-Availability (PBHA).
- A complete solution to design the DRP based on customers needs.
- Flashcopy or Snapshots:
- - Used for daily/weekly/monthly backup of customers,
- - Often with a product called Flash4i (M81),
- - A good way to clone an IBM i partition for testing purpose: With or without other product.
- Storage virtualization:
- - IBM Storage FlashSystem products are able to virtualize other storage products (IBM or not IBM branded),
- - A complete
- Safeguarded copies/snapshots:
- - As in 2026, security is more and more present, IBM Storage FlashSystem are able to add this layer of security on snapshots or Flashcopies,
- - Noboby can modify any bit of a safeguarded copy so disaster recovery after a cryptolocker or any kind of intentionnal deletion can be done quickly instead of taking hours and hours (maybe days).
Cons
- On code v9: No way to do repetitive tasks via GUI (like acting on many volumes in one single action).
- This force us to use CLI for basic operations available easily on v8.7.
- Urgent need here, could save a lot of time.
- Storage insight pricing is really hard to understand for most of my customers which lead to no storage insight and probably a lack of monitoring.
Return on Investment
- Using snapshots to do backup operations increase uptime for a near 24/7 uptime.
- No downtime during upgrade increase uptime for a near 24/7 uptime.
- Flexibility with capacity planning: easy to allocate new LUNs for an unknown/new project. Saving a lot of time without the need to add physical storage before starting a project or adding a new use case.








