Internal DASD, external SAN attachment, and flash storage hardware sized for IBM i disk pools and ASP performance requirements.
Storage hardware on IBM i is judged by how it behaves under real disk pool activity, not by raw capacity alone. Buyers usually compare internal DASD expansion, external SAN attachment through supported adapters, and flash-based options against current ASP balancing and I/O wait patterns.
This category also covers the physical drives, enclosures, and storage adapters that keep an existing Power server's disk pools healthy as workloads and data volumes grow.
If the server's processor and memory still have headroom and the bottleneck is genuinely storage-related, expanding DASD or adding SAN attachment is usually the faster and cheaper fix. Pull current ASP disk busy statistics before assuming storage is the actual cause of a performance issue.
If storage, processor, and memory are all constrained at once, that is usually a sign the whole server has reached its practical ceiling, and a server replacement conversation makes more sense than a series of piecemeal upgrades.
Open question pageStorage upgrades should be sized against actual disk pool performance data, not just free space remaining. Buyers should pull current ASP statistics before comparing drives, and confirm adapter and firmware compatibility with the exact Power server model before ordering hardware.
A host adapter and cabling kit that lets an IBM i partition attach to external SAN storage instead of relying solely on internal DASD.
An internal disk expansion drawer adding DASD capacity directly to an existing Power server without introducing external SAN complexity.
A disk-based appliance that presents as a tape library to existing IBM i save scripts, speeding up backups without a save script rewrite.
A sizing guide for IBM i storage hardware decisions, comparing internal DASD expansion against external SAN attachment using real disk pool performance data.
Profile for partner relationships that help IBM i buyers evaluate internal DASD expansion, external SAN attachment, and storage performance needs.
Internal DASD expansion is usually simpler and cheaper if the goal is just more disk pool capacity on one server. External SAN attachment makes more sense when a business wants to...