IBM System Storage DS3950 Express

Manage growth, complexity, and risk with scalable, high-performance storage

Model 1814-94H and 1814-98H
RAID controller Dual active
Cache Model 94H: 2 GB
Model 98H: 4 GB
Host interface Model 94H: Four 8 Gbps Fibre Channel
Model 98H: Four 8 Gbps Fibre Channel and four 1 Gbps iSCSI
Drive interface 4 drive ports—Fibre Channel Switched and Fibre Channel Arbitrated Loop (FC-AL) standard, auto-sensing 2 Gbps/4 Gbps
Supported drives 4 Gbps Fibre Channel: 300 GB, 450 GB and 600 GB 15k rpm
4 Gbps SATA: 1 TB and 2 TB 7.2k rpm
6 Gbps FC-SAS (2.5-inch): 300 GB, 600 GB and 900 GB 10k rpm
RAID levels 0, 1, 3, 5, 6, 10
Storage partitions 4, 8, 16, 64 or 128
Maximum drives supported 112 Fibre Channel, FC-SAS or SATA drives (using 6 EXP395 expansion units)
Fans and power supplies Dual redundant, hot-swappable
Rack support 19-inch, industry-standard rack
Management software IBM System Storage DS Storage Manager version 10.xx
SAN support IBM Fibre Channel switches and directors (product numbers 2005, 2006, 2109, 2026, 2027, 2031, 2032, 2034, 2042, 2054, 2061 and 2062, and IBM BladeCenter®)
Warranty Three-year parts and labor warranty, 9×5 next business day, upgradeable to 24×7 with four-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 DS3950 Express Interoperability Matrix.
DS3950 Express is supported only in rack installations. With optional features, up to six EXP395 expansion units can be attached to DS3950 Express allowing up to a maximum of 112 drives.
Model Model description Interface Model includes
1814-92H Drive enclosure 4 Gbps Fibre Channel interface ESM-embedded
Relative humidity (no condensation) EXP395 Drive Enclosure
Operating range 8% – 80%
Storage range 5% – 80%
Maximum dew point 26°C (79°F)
Maximum gradient 10% per hour
Altitude ranges EXP395 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 EXP395 Drive Enclosure
BTU/hr. 1,516
KVA 0.462
Watts (AC) 600
Amps (240 V ac) 2.25
The tabulated power and heat dissipation values are the maximum measured operating power.
Acoustic noise EXP395 Drive Enclosure
Sound power 6.5 bels
Sound pressure 67.5 dBA
Power input EXP395 Drive Enclosure
Nominal voltage range 100 – 240 V ac
Frequency range 50 – 60 Hz
Max operating current 5.4 A at 100 V ac
2.25 A at 240 V ac

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