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Silver 1U rackmount server with twelve front drive bays

IBM

IBM FlashSystem 5300 340TB 1U barebone server

SKU CH-WFM0-1SYYK MPN FlashSystem 5300 340TB

A 1U rackmount storage server with 12 FlashCore modules delivering 340TB effective capacity, 256GB cache and 2.2M IOPS under 50µs latency

  • Form Factor1U Rackmount
  • WorkloadStorage Server
  • SCSI RAIDRAID levels: Distributed RAID 1, 5 and 6
  • 2.5" BaysCapacity: up to 340TB Cache: 256GB Drive Configuration: 12 x
  • FeaturesData Reduction Pools (Compression, DeDuplication, Thin Provi

Option FlashSystem 5300 All Flash 340TB

  • 340 TB raw capacity from twelve 19.2 TB FlashCore Modules
  • Hardware-assisted compression and deduplication reduce stored data footprint
  • 256 GB cache accelerates read and write performance
  • 25 Gb iSCSI and 32 Gb Fibre Channel host links deliver high throughput
  • Distributed RAID 1, 5 and 6 protect data across drives

Compact 1U Storage Server

The IBM FlashSystem 5300 packs 12 FlashCore Modules into a single rack unit, delivering 340TB of effective capacity with hardware-assisted compression. It targets enterprises that need high-density block storage for virtualised workloads and databases. The 256GB cache and distributed RAID architecture keep latency under 50µs while protecting data across the module set.

Upgrade From Legacy Hybrid Arrays

Teams replacing older hybrid flash arrays gain a 2.2M IOPS ceiling and 28.6 GB/s bandwidth without expanding rack space. The jump is worth it when applications demand consistent sub-millisecond response and built-in data reduction pools replace separate deduplication appliances. Fibre Channel and iSCSI host ports are included, so no extra HBAs are required for most SAN fabrics.

Sustained Load Behaviour

Under continuous mixed read-write streams the distributed RAID engine rebuilds in parallel across all 12 modules, avoiding the long rebuild windows of traditional RAID 5 or 6. Hardware compression runs inline without CPU overhead, so throughput remains stable even when data reduction ratios shift. CyberVault and Safeguarded Copy snapshots operate in the background without impacting front-end IOPS.

Highlights

  • 340 TB raw capacity from twelve 19.2 TB FlashCore Modules
  • Hardware-assisted compression and deduplication reduce stored data footprint
  • 256 GB cache accelerates read and write performance
  • 25 Gb iSCSI and 32 Gb Fibre Channel host links deliver high throughput
  • Distributed RAID 1, 5 and 6 protect data across drives

Specifications

BrandIBM
SeriesFlashSystem
Model5300 340TB
Form Factor1U Rackmount
WorkloadStorage Server
SCSI RAIDRAID levels: Distributed RAID 1, 5 and 6
2.5" BaysCapacity: up to 340TB
Cache: 256GB
Drive Configuration: 12 x 19.2TB FlashCore Module
Host Connections: 25/10Gb iSCSI, 32Gb Fiber Channel
Drives Supported: 2.5-inch flash drives, SFF 2.5-inch disk drives, LFF 3.5-inch disk drives, IBM FlashCore Modules. Storage Class Memory
Connectivity Supported: 25/10Gb ISCSI, 10Gb ISCSI, 32/64Gb Fiber Channel
Max IOPs: 2.2M IOPs
RAID levels: Distributed RAID 1, 5 and 6
Min latency: Under 50µs
Max bandwidth: 28.6 GB/s
FeaturesData Reduction Pools (Compression, DeDuplication, Thin Provisioning, UNMAP): Yes
Hardware Assisted Compression: Hardware Based
Encryption: Yes
VMWare Integration: Yes
IBM Safeguarded Copy: Yes
CyberVault Support for Cyber Resiliency: Yes
Remote Replication (Synchronous Metro Mirror, Asynchronous Global Mirror): Yes
Hyperswap High Availability: Yes
NVMe Flash: Yes
FC-NVMe Host Connections: Yes
Easy Tier AI-driven automated tiering: Yes
Storage Class Memory: Yes
Transparent Data Migration: Yes
Red Hat OpenShift Container Integration: Yes
Scale-out Clustering: Yes
Heterogenous Support f
Shipping weight18.14 kg
Package size483 × 432 × 102 mm

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Questions about this item

What rack depth and clearance does the 1U FlashSystem 5300 require for the 12 FlashCore Modules and 256GB cache?

The unit occupies a single 1U rack space; allow standard front-to-rear airflow clearance for the 12 x 19.2TB modules and onboard cache.

Which cables and host ports must be connected first when installing the 25/10Gb iSCSI and 32Gb Fibre Channel interfaces?

Connect the eight supplied 5m OM3 LC fibre cables to the two 4-port 32Gb cards, then attach the 25/10Gb iSCSI links before powering on.

When should the 19.2TB FlashCore Modules be replaced to sustain the 2.2M IOPS and sub-50µs latency targets?

Replace modules when IBM Storage Insights Pro reports wear-level alerts or when capacity drops below the 340TB effective threshold with 2:1 compression.

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