IBM System Storage DS5020 Express


Optimised data management requires storage solutions with high data availability, strong storage management capabilities and powerful performance features. IBM System Storage DS5020 Express is designed to provide low total cost of ownership, high performance, robust functionality and unparalleled ease of use. As part of the System Storage DS5000 series storage system, DS5020 Express offers:

Achieve a low total cost of ownership

Facing relentless data growth and shrinking budgets, organisations continue to look for ways to improve efficiency and reduce costs. Utilising 8 Gbps FC connections allows companies to reduce the number of host bus adapters per server and the number of overall ports in their FC storage area network (SAN) infrastructure without sacrificing performance, thus saving acquisition and operational costs.

Additionally, auto-negotiating 8 Gbps FC interfaces allow DS5020 Express to integrate seamlessly into an existing 2 Gbps or 4 Gbps infrastructure, while offering investment protection going forward when the SAN inevitably becomes 8 Gbps.

The system is designed to help you avoid over-configuration for an affordable entry-point while offering seamless 'pay-as-you-grow' scalability as requirements change. Its efficient storage use is designed to reduce raw capacity requirements. The ability to intermix high-performance and high-capacity drives enables tiered storage in a single enclosure. These extraordinary abilities reduce the number of drives needed to meet performance and capacity demands and can significantly reduce acquisition and operational costs.

Common features

Hardware summary

Feature Benefits
Host interface intermix
Balanced performance
Support for self-encrypting drives
Up to 112 intermixed drives
Built-in efficiencies
IBM System Storage DS Storage Manager software
Dynamic expansion capabilities
Up to 128 partitions
Fully-integrated replication features
Support for heterogeneous, open operating systems (OSs)
Custom exclusive or (XOR) engine for RAID parity calculations
Support for multiple RAID levels; including RAID 6
Redundant, hot-swappable components
Persistent cache backup
Eight 8 Gbps FC host ports
Backward compatibility with 2 Gbps and 4 Gbps devices
Up to 112 FC drives
T10-PI data integrity
Dynamic capacity expansion
Up to 64 mirror pairs
IBM FlashCopy
Dynamic volume expansion

Model 1814-20A
Redundant Array of Independent Disk (RAID) controller Dual active
Cache 4 GB
Host interface Four 8 Gbps FC
Eight 8 Gbps FC
Four 8 Gbps FC
Four 1 Gbps iSCSI
Drive interface 4 drive ports – FC Switched and FC Arbitrated Loop standard, auto-sensing 2 Gbps/4 Gbps
Supported drives 4 Gbps FC full disk encryption (FDE): 300 GB and 450 GB 15k revolutions per minute (rpm)
6 Gbps FC-SAS: 300 GB, 600 GB and 900 GB 10k rpm
6 Gbps FC-SAS FDE: 600 GB 10k rpm
FC-SAS: 300 GB 15k rpm
FC-SAS FDE: 300 GB 15k rpm
SSD*: 200 GB and 400 GB
4 Gbps SATA: 1 TB and 2 TB 7.2k rpm
6 Gbps FC-SAS nearline: 3 TB 7.2k rpm
RAID levels 0, 1, 3, 5, 6, 10
Maximum capacity Up to 336 TB of FC-SAS nearline physical storage capacity, or up to 224 TB of SATA physical storage capacity, or up to100.8 TB of FC-SAS physical storage capacity, or up to 8 TB of SSD physical storage capacity
Storage partitions 4, 8, 16, 64 or 128 storage partitions
Maximum drives supported 112 FC, SED, FC-SAS, FC-SAS nearline, SSD or SATA drives (using 6 EXP520 expansion units)
Fans and power supplies Dual redundant, hot-swappable
SAN support Supported IBM FC switches and directors (product numbers 2005, 2006, 2109, 2026, 2027, 2031, 2032, 2034, 2042, 2054, 2061 and 2062, and IBM BladeCenter)
Management software IBM System Storage DS Storage Manager version 10.xx
Warranty Three-year parts and labour warranty, 9:00 to 17:00 next business day, upgradeable to around-the-clock with six-hour response

 Physical characteristics
Dimensions H - 130.3 mm (5.13 in.) W - 447.0 mm (17.6 in.) D - 563.8 mm (22.2 in.)
Supported systems For a list of currently supported servers, operating systems, host bus adapters, clustering applications and SAN switches and directors, refer to the DS5020 Express Interoperability Matrix.
DS5020 Express is supported only in rack installations. With optional features, up to six EXP520 expansion units can be attached to DS5020 Express up to a maximum of 112 drives.

Model Model description Interface Model includes
1814-52A Drive enclosure 4 Gbps FC interface ESM-embedded

 EXP520 Drive Enclosure
Relative humidity (no condensation) EXP520 Drive Enclosure
Operating range 8% – 80%
Storage range 5% – 80%
Maximum dew point 26°C (79°F)
Maximum gradient 10% per hour
Altitude ranges EXP520 Drive Enclosure
Operating 30.5 m (100 ft) below sea level to 3,000 m (9,842 ft) above sea level
Storage 30.5 m (100 ft) below sea level to 3,000 m (9,842 ft) above sea level
Transit 30.5 m (100 ft) below sea level to 12,000 m (40,000 ft) above sea level
Heat dissipation EXP520 Drive Enclosure
BTU/hr. 1,516
KVA 0.454
Watts (AC) 443
Amps (240 V ac) 2.25
The tabulated power and heat dissipation values are the maximum measured operating power.
Acoustic noise EXP520 Drive Enclosure
Sound power 6.5 bels
Sound pressure 65 dBA
Power input EXP520 Drive Enclosure
Nominal voltage range 100 – 240 V ac
Frequency range 50 – 60 Hz
Maximum operating current 6.0 A at 100 V ac; 2.5 A at 240 V ac

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Mark Hogan

Technical support