top of page
server-parts.eu

server-parts.eu Blog

IBM FlashSystem 7600 Specifications and Technical Overview

  • 2 hours ago
  • 5 min read

IBM FlashSystem 7600 is a 2U NVMe all-flash storage system designed for enterprise workloads that require high performance, low latency, and scalable block storage without moving to top-end systems like the 9600.


IBM FlashSystem - Immediate Availability

Limited stock at special pricing



IBM FlashSystem 7600 enterprise storage system, IBM all-flash storage array, NVMe enterprise storage platform, high performance data center storage, IBM Spectrum Virtualize storage solutions, scalable enterprise SAN storage, hybrid cloud storage infrastructure, high availability storage arrays, mission critical enterprise storage hardware, enterprise IT infrastructure solutions, refurbished IBM FlashSystem 7600, refurbished enterprise storage hardware, refurbished IBM storage arrays, server-parts.eu IBM storage solutions, refurbished storage parts Europe, cost-efficient enterprise storage infrastructure, sustainable data center storage solutions


Overview - IBM FlashSystem 7600


It is positioned as a mid-to-upper enterprise array for shared block storage, not an entry model and not IBM’s top 9600 tier.


The system includes:

  • 32 EDSFF NVMe front slots

  • Two node canisters

  • Two redundant power supplies


It runs on IBM Storage Virtualize, which provides the software stack for provisioning, replication, snapshots, automation, and scaling.



Specification - IBM FlashSystem 7600 Specs


Item

IBM FlashSystem 7600

Form factor

2U

Machine type / model

5075-A30

Minimum software level

9.1.2

Front drive bays

32 NVMe slots

Drive form factor

EDSFF

Architecture

Dual-controller active-active

Max IOPS

4.3M (4K read hit)

Max bandwidth

55 GB/s

Max I/O ports

32

Memory options

768 GB, 1.5 TB

Raw max capacity (single enclosure)

1.6 PB

Effective max capacity (single enclosure)

7.2 PBe

Effective max capacity (FlashSystem grid)

230 PBe



Hardware Architecture - IBM FlashSystem 7600


FlashSystem 7600 uses a dual-node active-active design.


Both node canisters can serve volumes simultaneously. If one node fails or is taken offline, the second node continues serving I/O.


Each node canister contains:

  • CPUs

  • system memory

  • backup battery

  • network attachment adapters


Chassis - IBM FlashSystem 7600

Component

Detail

Control enclosure

2U

Front slots

32 NVMe flash slots

Node canisters

2

Power supplies

2 redundant PSUs

Battery backup

1 battery per node canister

Each PSU requires:

  • Two high-line AC sources

  • 200–240 V power



CPU and Memory - IBM FlashSystem 7600


Memory / cache option

Supported

768 GB

Yes

1.5 TB

Yes


IBM ships configurations commonly with 768 GB cache, which aligns with the lower published memory option.



Storage & Capacity - IBM FlashSystem 7600


FlashSystem 7600 supports:

  • IBM FlashCore Module (FCM)

  • Industry-standard NVMe flash drives

  • only drives sold by IBM as supported system options


FlashCore Module capacities - IBM FlashSystem 7600

FlashCore Module capacity

Supported

6.6 TB

Yes

13.2 TB

Yes

26.4 TB

Yes

52.8 TB

Yes

105.6 TB

Not listed for 7600


Capacity Limits - IBM FlashSystem 7600

Capacity metric

Value

Raw maximum capacity (single enclosure)

1.6 PB

Effective maximum capacity (single enclosure)

7.2 PBe

Effective maximum capacity (FlashSystem grid)

230 PBe


Effective capacity values assume maximum possible data reduction from FlashCore Modules. Actual usable capacity varies depending on the workload.


Example Configurations - IBM FlashSystem 7600

Example configuration

Drive configuration

Raw capacity

Effective capacity

Cache

Entry configuration

8 × 13.2 TB FCM5

—

165 TB

768 GB

Mid configuration

12 × 13.2 TB FCM5

158 TB

300 TB

768 GB

High capacity configuration

12 × 52.8 TB FCM5

634 TB

1.2 PB

768 GB

IBM example configurations frequently include 32 Gb Fibre Channel connectivity.



Protocols and Host Connectivity - IBM FlashSystem 7600


FlashSystem 7600 supports both Fibre Channel SAN and Ethernet block storage protocols.


Adapter options - IBM FlashSystem 7600

Adapter

Protocols

Per node canister

Quad-port 64 Gbps Fibre Channel

SCSI, FC-NVMe

0–3

Quad-port 32 Gbps Fibre Channel

SCSI, FC-NVMe

0–4

Dual-port 100 Gbps Ethernet

iSCSI, NVMe/TCP, replication

0–4

Quad-port 25 Gbps Ethernet

iSCSI, NVMe/TCP, replication

0–4


Each node canister also includes:

  • 2 × dedicated 10 GbE management ports


Supported front-end protocols include:

  • Fibre Channel

  • NVMe over Fibre Channel

  • iSCSI

  • NVMe over TCP


Port Limits - IBM FlashSystem 7600

Metric

Value

Maximum I/O ports (single enclosure)

32

Maximum ports in FlashSystem grid

1024



Performance - IBM FlashSystem 7600


Metric

Value

Maximum IOPS

4.3 million

Read bandwidth

55 GB/s

Read latency

< 50 microseconds


The IOPS figure is specifically 4K read-hit workload, not a mixed workload benchmark.



Data Path, Availability, and Protection - IBM FlashSystem 7600


The array uses active-active controllers and Distributed RAID.


Distributed RAID provides:

  • redundancy

  • faster rebuilds

  • even distribution of protection across drives


Power-loss handling - IBM FlashSystem 7600

Each node canister contains a battery.


During unexpected power loss, the battery protects:

  • write cache

  • system metadata


This allows the system to safely flush cached data when power is restored.



Snapshot and Immutability - IBM FlashSystem 7600


Storage services come from IBM Storage Virtualize -> core capabilities include:

  • Safeguarded snapshots

  • Immutable volume groups

  • Replication

  • Large scalable cache

  • Workload mobility through FlashSystem grid



Data Reduction and FlashCore - IBM FlashSystem 7600


On FlashSystem 7600:

  • data reduction is always enabled

  • compression occurs on FlashCore Modules

  • compression anfd deduplication are handled by hardware-assisted functions


Important current behavior:

  • deduplication currently operates in scan-only mode.

  • dedupe identifies duplicate data but does not yet actively remove duplicates

  • full deduplication will be enabled in a future software update



Security and Ransomware Detection - IBM FlashSystem 7600


FlashSystem 7600 supports FlashCore Module 5 (FCM5) -> FCM5 includes:

  • computational storage hardware

  • storage-level anomaly detection

  • continuous monitoring of I/O patterns


Ransomware patterns can be detected in less than one minute. Combined with Safeguarded snapshots, this provides storage-level cyber-recovery capabilities.



Software Stack - IBM FlashSystem 7600


The array runs IBM Storage Virtualize -> key functions include:

  • storage pooling

  • logical volume virtualization

  • logical volume management

  • workload mobility

  • scale-out capacity and performance

  • replication

  • immutable volume orchestration

  • Safeguarded snapshots

  • REST APIs

  • Ansible automation

  • CSI integration

  • VMware integration

  • GUI management


Management and Automation - IBM FlashSystem 7600

Feature

Availability

REST API

Yes

Ansible playbooks

Yes

CSI integration

Yes

VMware integration

Yes

GUI

Yes



Grid Scale and Configuration Limits - IBM FlashSystem 7600


FlashSystem grid scaling allows multiple systems to operate together.

FlashSystem grid metric

Value

Effective maximum capacity

230 PBe

Maximum I/O ports

1024

Maximum read bandwidth

1,760 GB/s


Production deployments must verify limits for:

  • host count

  • volume count

  • snapshot scale

  • replication topology

  • protocol combinations

  • memory-dependent feature limits


These limits depend on the exact Storage Virtualize software level.



Technical Limitations - IBM FlashSystem 7600


Drive-count inconsistency in product pages - IBM FlashSystem 7600

Some references mention 24 NVMe drives in a 2U enclosure, but the system is consistently designed with 32 front NVMe slots.


Effective capacity depends on reduction - IBM FlashSystem 7600

The 7.2 PBe effective capacity assumes maximum compression and reduction.

Real workloads may achieve significantly different results.


Deduplication behavior - IBM FlashSystem 7600

Deduplication currently operates in scan-only mode, with active deduplication expected in a future software update.



Use Cases - IBM FlashSystem 7600


Typical technical deployments include:

  • large VMware clusters

  • Fibre Channel SAN environments

  • NVMe-based SAN deployments

  • Ethernet block storage environments

  • database consolidation

  • enterprise snapshot-based recovery

  • scale-out storage grids



IBM FlashSystem - Immediate Availability

Limited stock at special pricing



FAQ - IBM FlashSystem 7600


Does FlashSystem 7600 support data reduction?

Yes. Compression is always enabled, deduplication is currently scan-only mode (Storage Virtualize 9.1.2) and full inline deduplication is expected in a future release.


What is the latency of IBM FlashSystem 7600?

Less than 50 microseconds read latency (best-case conditions), actual latency depends on workload, protocol, and configuration.


Does FlashSystem 7600 support VMware and containers?

Yes. Supported integrations include VMware environments, CSI drivers for Kubernetes and containers and automation via REST API and Ansible.


How many drives does FlashSystem 7600 support?

32 NVMe drives per enclosure.


What power requirements does FlashSystem 7600 have?

  • Dual redundant power supplies

  • Requires 200–240V AC high-line power



Sources - IBM FlashSystem 7600


bottom of page