| Model |
Helios S2501 SAS DAS |
| Data Sheet |
 Data Sheet |
| Model Options |
Single controller
Dual controller
Dual controller telco
|
| RAID controller |
Dual active |
| Cache per controller |
512 MB battery-backed cache with 1 GB upgrade option |
| Host interface |
One or three host ports per controller, Serial Attached SCSI (SAS) 3 Gbps |
| Drive interface |
Serial Attached SCSI (SAS) |
| Supported drives |
3 Gbps SAS: 73 GB, 146 GB, 300 GB, and 450 GB SAS drives at 15,000 rpm speeds
3 Gbps SATA: 500 GB, 1.0 TB SATA drives at 7,200 rpm speed |
| RAID levels |
RAID-0, -1, -3, -5, -6, -10 |
| Storage partitions |
4, 8, 16, 32 |
| Maximum drives supported |
48 drives (utilizing three EXP3000 Expansion Units) |
| Fans and power supplies |
Dual-redundant, hot-swappable |
| Rack support |
2U 19" industry-standard rack |
| Management software |
IBM System Storage DS3000 Storage Manager |
| Size |
Height: 8.7 cm (3.4 in.)
Depth: 55.0 cm (21.6 in.)
Width: 44.7 cm (17.6 in.)
Weight: approximately 17.2 kg (38.0 lb) for a standard unit; when fully configured, 29.2 kg (64.5 lb)
|
| Environment |
Air temperature:
– On: 10° to 35°C (50.0° to 95°F); altitude: 30.5 (100 ft) below to 3000 m (9840 ft) above sea level; temperature change: 10°C (18°F) per hour
– Off: 10° to 50°C (14.0° to 120.0°F); maximum altitude: 3000 m (9840 ft); temperature change: 15°C (27.0°F) per hour
Humidity:
– On: 20 to 80%; Off: 10 to 90%
– Maximum dew point: 26°C (79°F)
– Maximum humidity gradient: 10% per hour
|
| Heat output |
Approximate heat output in British thermal units (Btu) per hour:
– Minimum configuration: 205 Btu (60 watts)
– Maximum configuration 1235 Btu (361 watts)
|
| Warranty |
Three-year parts and labor limited warranty |
| Reference |
Q143466 |
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