More performance, less investment.
Provide all-flash or hybrid storage at an exceptional value, and support up to 10,000 MS-Exchange mailboxes in just 2U of rack space.*
- 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 systems*
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 controllers per SC4020 array
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
- Product OS
Storage Center 6.5
Microsoft® Windows Server®, Oracle® Solaris, HP®-UX, Oracle Linux, IBM® AIX®, Novell® NetWare, SLES, Apple, HPTru64, VMware®, Citrix® XenServer®, RedHat®
Supports RAID 0, 1, 5, 6, RAID 10 and RAID 10 DM (dual mirror). Any combination of RAID levels can exist on a single Storage Center. Multiple RAID levels can exist on the same storage tier within an array.
- Enterprise Manager (included, server-installable), Storage Center Manager (included, on-board browser-based), Enterprise Manager Chargeback, Replay Manager, vCenter Operations Manager plug-in, command-line interface
- 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
- Auto-tuned for maximum performance and cost-savings based on real-time usage information
- FLASH-optimized for affordable all-flash or hybrid SSD/HDD deployments
- Fibre Channel or iSCSI SAN support included, with high-performance scale-out NAS option
- Perpetual software licensing for low lifecycle costs
- Award-winning Copilot Support
Enterprise storage features right from the startIdeal for stand-alone SANs or departmental/branch office deployments, the SC4020 is based on our larger enterprise-class storage solution, SC8000. Designed to support distributed large-scale growth, the overall Dell Storage SC Series portfolio ensures that as your organization grows, so will your ability to store, manage and gain insights from your data.
- Fully virtualized array eliminates need to pre-allocate RAID groups, increases overall flexibility
- Automated tiering among all drive types, including HDDs and read- and write-intensive SSDs
- Space-efficient snapshots, block-level compression, remote synchronous/asynchronous replication, Fast Track disk optimization
- Comprehensive management tools, including full integration and replication with SC8000
Industry-leading TCO saves more than data
- Buy fewer and less expensive disks
- Expand easily to 192 drives using standard Dell Storage enclosures
- Enables flash solutions for the price of hard drive solutions
- Data Progression, Dynamic Capacity (thin provisioning), Enterprise Manager and Data Instant Replay (snapshots)
Award-winning Copilot ServicesCombining centralized support, product education and sales resources, Dell Copilot Services includes 24x7 active system monitoring to help improve performance and stability.
* Based on Microsoft Exchange JetStress 2013 testing of 24 x 900GB 10K RPM drive SC4020 configuration in February 2014 in Dell Labs. Actual results will vary.
Entry level all-flash arraysThe entry-level SC4020 single-tier all-flash array (AFA) is one of the industry's most affordable all-flash solutions. Now it’s possible to accelerate workloads today—well beyond the capabilities of spinning disk—and keep your options open to add a tier of higher performing write-intensive SSDs or high-capacity HDDs as your business grows.
Flash-Optimized All-Flash ArraysDell’s exclusive Flash-Optimized multi-tier AFAs combine the best features of multiple types of enterprise-class SSDs for the ultimate in simultaneous performance and cost-savings.
Innovative Data Progression technology sends all incoming writes to WI (Write-Intensive) SSDs, to ensure the highest write speeds. Data is then migrated to RI (Read-Intensive) SSDs, offering equivalent read performance at a lower cost.This intelligent automation keeps your applications running smoothly using the least expensive mix of drives. In addition, because the WI “write layer” frees your RI drives from primary writes, they’ll last much longer than drives in competing all-RI arrays.
Hybrid arraysBoth the single and multi-tier AFAs described above may be further expanded and cost-optimized by adding a tier of spinning disks either within the original SC4020 chassis or in one or more expansion enclosures.
SC Series hybrid arrays deliver the best of both worlds – performance plus cost savings. All writes go to Tier 1 SSDs, guaranteeing outstanding performance. Only cold data is moved to spinning disk, but since that can constitute a very large percentage of overall capacity (up to 80% of all data is written once and never accessed again), many customers will save money by diversifying their drives.
Traditional HDD arraysThe SC4020 can also be deployed as a traditional array with hard drives only. For those who don’t need the performance of flash, data progression still provides best-in-class tiering to optimize performance and enhance your HDD solution. Features such as FastTrack disk optimization ensure you get the most out of your hard drive investment.
SC4020 drive optionsSC4020 supports a wide variety of 2.5” SSDs and HDDs, including:
|WI (Write-Intensive) SSDs||RI (Read-Intensive) SSDs||HDDs|
|300GB SAS, 15K |
600GB SAS, 10K
900GB SAS, 10K
1.2TB SAS, 10K
1TB SAS, 7.2K
Additional 3.5” drives are supported in optional expansion enclosures: 2TB 7.2K, 3TB 7.2K, 4TB 7.2K, 6TB 7.2K, 450GB 15K, 600GB 15K.
Other configuration optionsSC4020 is available with either Fibre Channel or iSCSI networking ports. Native block SAN support is included, plus NAS support when deployed with the optional FS8600 NAS appliance. Additionally, replications and snapshots can be controlled and automated with the Enterprise Manager tool.
Dell Storage SC Series expansion enclosuresIn addition to its 24 internal drive slots, SC4020 supports non-disruptive expansion to 192 total drives (over 500TB raw capacity) per array, with even larger capacities available in federated multi-array configurations. Flash and/or HDD tiers are supported to meet specific performance, cost or density needs using any combination of the following expansion enclosures.
Dell Storage SC200
| Dell Storage SC220 |
Dell Storage SC280
A new level of Storage Center efficiencyThe latest Dell Storage Center OS builds on the SC Series legacy while delivering even better performance, efficiency and scalability. Features include:
- Seamless disaster recovery and zero workload downtime with Live Volume auto-failover
- Multi-array federation capability
- Application Protection Manager Suite offering enhanced data integrity for Oracle, Microsoft and VMware environments
- Data-at-rest encryption on the same array with industry-standard key management
- Multi-VLAN tagging for efficient data and security separation between network traffic
- LDAP support for easy access and maintenance
- Advanced capacity options with SC4020 support for up to 192 drives and the SC280 ultra-dense enclosure
- Space and cost savings with auto-tiering and "thin methods" (provisioning, snapshots, clones and more)
Data Progression: Automated tiered storageBased on actual use and application performance requirements, SC Series Data Progression automatically optimizes your drive tiers and RAID levels. By default, all new data is written to fastest Tier 1 drives at RAID 10 performance levels, then converted to economical RAID 5/6 for subsequent reads.
As data ages, it is moved to less expensive storage until it becomes active again. All-flash and hybrid arrays can leverage the unique attributes of write- and read-intensive SSDs in combination. Data is precisely where it’s needed, when it’s needed – the perfect combination of high IOPS and cost savings.
Space savings in the data centerThe SC Series offers Dynamic Capacity (thin provisioning) that completely separates storage allocation from utilization, enabling you to allocate any size storage volume up front while only consuming physical capacity on write. For data protection or "thin replication," Data Instant Replays solve tradeoff issues between snapshot granularity and capacity cost savings. Remote Instant Replay leverages the same space-efficient snapshots to deliver a cost-effective disaster recovery solution between local and remote sites.
Additionally, intelligent block-level compression – with up to 93% capacity savings* – is available on HDD and SSD arrays that fully integrate with Data Progression auto-tiering for maximum cost savings and minimum performance impact.
Business continuityFor seamless disaster recovery, easy storage migrations or the creation of federated multi-array systems, the Storage Center Live Volume feature acts as a "storage hypervisor," allowing data to be copied or moved between arrays with no interruption to host access. New auto-failover capability gives you full auto-restore and volume-level protection from unplanned outages with no need for additional hardware or software.
To help avoid physical security breaches, many organizations and government agencies are focusing on data-at-rest encryption. The SC Series offers a complete range of FIPS 140-2 certified self-encrypting drives (SEDs) in both SSD and HDD formats, plus support for leading third-party key managers.
Intuitive management at your fingertipsSC Series arrays include a unified, point-and-click interface that cuts administration time and eliminates the need for specialized skills. Repetitive, time-consuming tasks are automated so data center staff can focus on other important projects.
Enterprise Manager simplifies storage resource management by providing comprehensive monitoring and management of all local and remote Dell SC Series Storage Center systems. With advanced features like departmental "charge-back" reporting, you can gain instant visibility and control of a multi-terabyte, multilocation environment, streamlining administration and reducing operating costs. You can also easily migrate data from PS Series (EqualLogic) to SC Series.
With the introduction of Application Protection Manager for Oracle, you can create application-consistent Replays for Oracle databases. Combined with Storage Center Data Instant Replay (DIR), it will ensure reliable application consistent backup and recovery of Oracle and Microsoft Volume Shadow Copy (VSS) enabled applications (Exchange, SQL and Hyper-V®) and VMware virtual machines (VMs).