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Dell SC4020 All-In-One Array
High performance that fits your budget, including all-flash

Dell SC4020

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Intelligent, self-optimizing array in an affordable, all-in-one form factor. Why choose between cost and competitive advantage? Best-in-class auto-tiering is now the economical choice.

In the past, advanced storage optimization techniques, available only on a huge scale, were the secret to big enterprise, big data success. The world's largest companies could achieve massive business results while simultaneously enjoying the lowest TCO-per-GB of storage. Cost-saving auto-tiering and data migration capabilities, expensive to acquire, remained out of reach for the resource-strapped smaller businesses that needed them most.
Today, your organization can access these powerful techniques starting with a compact, affordable, yet feature-rich and scalable solution from Dell Storage.

SC Series Advantage For Every Business

SC4020 arrays are based on Dell's award-winning SC8000 mid-range platform. Offering similar benefits at a smaller scale, the SC4020 may be deployed with any choice or combination of flash and traditional hard disk drives. Virtualized multi-tier storage policies are applied quickly and automatically, leveraging the unique characteristics of all your drives, and allowing you to target application-specific price and performance requirements with a minimum of planning or effort.

Dual redundant controllers, 24 internal drive slots, plus multiprotocol network, replication and expansion ports are all delivered in a space-saving 2U chassis, making the flexible SC4020 a true all-in-one solution. Add-on enclosures let you scale to over 1PB raw storage capacity per array; and when you're ready, you can link multiple SC Series arrays in federated clusters under unified management - with non-disruptive data movement between arrays through the included Live Migrate feature.

Auto-tune Your Data Center For Maximum Performance And Cost Savings

Like the larger SC8000 or SC9000, SC4020 features innovative Data Progression technology that works in the background to provision and optimize data placement across all drives. Incoming writes are steered to the highest-performing tier at the fastest RAID level, providing an exceptional performance experience for your users. As data ages, it is automatically identified and moved to less expensive storage until it becomes more active again. Data is precisely where it's needed, when it's needed - resulting in an ideal blend of high IOPS and cost-savings.

Spend Less Time Configuring And Managing Storage

Dell's fully virtualized Storage Center platform enables unprecedented levels of efficiency and automation. All available capacity is combined in a single pool by default - and since individual disks and volumes can support multiple RAID levels, pre-allocation of RAID groups is not required.

The performance and capacity of the entire pool is presented to all RAID levels simultaneously, each of which dynamically expands or contracts as needed based on real-time access patterns. Thin provisioning best practices are automatically enforced, ensuring the best drive utilization, with no administrative intervention required.

Designed And Optimized For Flash

SC4020 all-flash or hybrid SSD/HDD configurations can support multiple SSD tiers, combining the best attributes of write- and read-intensive drives. SC4020 all-flash solutions actually cost less than comparable 15K disk drive solutions - making it an easy choice to move 100% of your hot data to flash.1

Enhance Any Environment

SC4020 supports SANs natively, and with the Dell Storage FS8600 NAS front-end also supports file-based systems. Advanced features such as intelligent deduplication and compression, space-efficient snapshots, synchronous/asynchronous replication, data-at-rest encryption, and FastTrack drive optimization - along with world-class Dell Copilot Support2 - make the SC4020 a perfect complement to any Dell server installation. Regardless of your current infrastructure, this open standard array helps you begin your migration to a modern storage architecture in small, affordable increments.

In today's global marketplace, the ability to efficiently store, manage, access and extract value from data is synonymous with business success. State-of-the-art storage virtualization is no longer a luxury - it is a key business requirement. Fortunately, the SC4020 now gives even small organizations and remote departments the self-optimizing resources necessary to succeed in a big data world. It's just one more way Dell is redefining the economics of modern storage.

Technical Specifications:

Product Configurations

Internal Storage
24 x 2.5” drive bays

Supported expansion enclosures
Dell SC200: 12 x 3.5” drive bays
Dell SC220: 24 x 2.5” drive bays
Dell SC280: 84 x 3.5” drive bays

Maximum drive count
192 (24 internal, plus 168 external)

Total storage capacity
1.054PB, more in federated systems1

Supported drive types
HDD: 15K, 10K, 7.2K RPM; SSD: write-intensive and read-intensive drives in SLC, MLC and TLC formats. Drive types can be mixed in the same system.

2 hot-swappable controller modules per SC4020 chassis

Intel® Xeon® Processor E3-1265L v2, 2.50GHz, 4 cores

32GB per SC4020 array (16GB per controller)

Network/server connectivity (front-end)

Fibre Channel model: 8 x 8Gb FC ports per SC4020 array (4 per controller) or 4 x 16Gb FC ports per SC4020 array (2 per controller); simultaneous multiprotocol support available with optional upgrade to firmware v6.6. Management/Replication ports may also provide two ports of front-end iSCSI network I/O per controller.

iSCSI model: 4 x 10Gb iSCSI ports per SC4020 array (2 per controller); additional iSCSI network connectivity available with optional upgrade to firmware v6.6. Management/Replication ports may also provide two more ports of front-end iSCSI per controller.

Internal drive connectivity (back-end)
4 x 6Gb SAS ports per SC4020 array (2 per controller)

NAS deployment connectivity (optional)
Supports file-based storage via FS8600 NAS appliance

Technical Highlights

Product OS
Storage Center 6.5 or greater

Array configurations
All-flash, hybrid or HDD arrays

Auto-tiering method
Policy-based migration based on real-time data usage, customizable 512KB-4MB page size.

Auto-tiering structure
Up to 3 primary (media-based) tiers total, up to 2 SSD tiers (write- and read-intensive SSDs)

Tiering customizations
User-defined profiles, option to “pin” volumes to any tier

RAID support
RAID 0, 1, 5, 6, RAID 10, and RAID 10 DM (Dual Mirror); any combination of RAID levels can exist on a single array

RAID tiering
Auto-provisions and dynamically restripes multiple RAID levels on the same tier; no need to pre-allocate RAID groups

Thin provisioning
Active by default on all volumes, operates at full performance across all features

Thin snapshots
Records changes only, snapshots auto-migrate to lower-cost storage

Intelligent deduplication and compression
Selectable option per volume on SSD and/or HDD tiers
Compression-only option also available

Standard replication
Synchronous/Asynchronous using FC or iSCSI

Federated multi-array systems
Live Migrate (included in base product) enables host-transparent data movement among arrays
Volume Advisor continually monitors federation to suggest optimal data placement based on custoizable capacity or performance load balancing policies
Dell Storage Manager provides data center-level viewpoint and control

Coexistence with PS Series arrays
Replication in either direction
Day-to-day management from a single interface
Thin import: space-efficient, non-disruptive data migration from PS Series arrays

Business continuity
Live Volume auto-failover, auto-repair
VMware Metro Stretch Cluster support
Microsoft® Azure Site Recovery

Application data protection
Restore host-side data from array in Oracle, Microsoft or VMware environments

Data-at-rest encryption
Self-encrypting drives (SEDs) in SSD or HDD formats
Full Disk Encryption (FCE) based on AES-256
Drives certified to FIPS 140-2 Level 2
Key Management Server (KMS) options available for FIPS 140-2 Level 1, 2 and 3

External key manager support
Gemalto’s SafeNet KeySecure k460, SafeNet KeySecure k250, SafeNet KeySecure k150v
Thales EMS 200


Management interface
Dell Storage Manager, formerly Enterprise Manager
Multi-array, multi-site, cross-platform management from single interface2

Workload management

Scripting support
Microsoft PowerShell API

Host OS support
Microsoft® Windows Server®, Oracle® Solaris, HP®-UX, Oracle Linux, IBM® AIX®, Novell® NetWare, SLES, Apple, HPTru64, VMware®, Citrix® XenServer®, RedHat®

Third-party application integration
VMware, Oracle, Microsoft, IBM, OpenStack, Symantec, Commvault, Foglight, Docker (see SC Series Management spec sheet for more details)

VMware Metro Stretch Clusters
VMware SRM
IBM VIOS Recognized

Support assist (phone home), remote diagnostics and performance monitoring, automated alerts, reports and notifications, departmental chargeback


Power/wattage: 2 hot-swappable 580W power supplies; 580W maximum power
Heat dissipation: 1,978 BTU/hr maximum
Voltage: 100-240 VAC
Frequency: 50/60 Hz
Amperage: 7.6-3.0 A


Rack size: 2U
Height: 8.79 cm (3.46 inches)
Width: 48.2 cm (18.98 inches)
Depth: 54.68 cm (21.53 inches)
Weight at maximum configuration: 24 kg (53 lb)
Weight empty: 7 kg (15.4 lb)

Environmental Operating Conditions

Operating temperature: 50 - 95°F (10 - 35°C)
Non-operating temperature: -40 - 149°F (-40 - 65°C)
Operating humidity ranges (non-condensing): 10% to 80% with 29°C (84.2°F) maximum dew point
Non-operating humidity (non-condensing): 5% to 95% with 33°C (91°F) maximum dew point
Inlet type: NEMA 5-15/CS22.2, n°42


Dell SC4020 All-In-One Array Datasheet (.PDF)

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Pricing Notes: