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System Storage DS3950 Express

Product characteristics
Model 1814-94H and 1814-98H
RAID controller Dual active
Cache
Host interface
Drive interface 4 drive portsFibre Channel (FC) Switched and FC Arbitrated Loop (FC-AL) standard, Auto-sensing 2 Gbps/4 Gbps
Supported drives Supports 4 Gbps FC: 15k 600 GB, 450 GB, 300 GB, 146.8 GB, E-DDM
Supports 4 Gbps SATA: 7.2K 750 GB/1 TB and 2 TB E-DDM Disk drives
RAID levels 0, 1, 3, 5, 6, 10
Storage partitions 4, 8, 16, 64 or 128 storage partitions
Maximum drives supported 112 FC or 112 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 Supported IBM FC 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, 9x5 next business day, upgradeable to 24x7 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 1 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 available at ibm.com/systems/storage/disk/ds3950.
For availability dates, configuration options, and attachment capabilities, refer to: ibm.com/systems/storage/disk.
The DS3950 Express is supported only in rack installations. With optional features, up to six EXP395 Expansion Units can be attached to the DS3950 Express up to a maximum of 112 drives.
Model 1814-92H
Model description Drive Enclosure
Interface 4 Gbps FC interface
Model includes ESM-imbedded
Relative Humidity (no condensation) EXP395 Drive Enclosure
Operating range 8% to 80%
Storage range 5% to 80%
Maximum dew point 26C (79F)
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 VAC) 2.25
The tabulated power and heat dissipation values are the maximum measured operating power.
Acoustic noise EXP395 Drive Enclosure
Sound power 6.75 bels
Sound pressure 67.5 dBA
Power input EXP395 Drive Enclosure
Nominal voltage range 100 VAC to 240 VAC
Frequency range 50 to 60 Hz
Max operating current 5.4 A at 100 VAC
2.25 A at 240 VAC

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