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Western Digital Ultrastar DC HC550 18TB 512MB 7200RPM SAS 512E SE NP3
Disk s kapacitou 18 TB a 512 MB bufferem, určený pro serverové aplikace. Rotace 7200 RPM, rozhraní SAS 12 Gb/s. Vysoká spolehlivost s MTBF 2,5 milionu hodin a nízkou mírou selhání 0,35 %. Ideální pro náročné datové nasazení.
12 350 Kč bez DPH 10 207 Kč
Popis produktu
| SATA | SAS | |
| General | ||
| Interface | SATA 6 Gb/s | SAS 12 Gb/s |
| Capacity1 | 18TB / 16TB | 18TB / 16TB |
| Format: Sector size (bytes)2 | 4Kn: 4096 | 4Kn: 4096, 4112 |
| 512e: 512 | 4160, 4224 | |
| 512e: 512, 520, 528 | ||
| Performance | ||
| Data buffer (MB)3 | 512 | 512 |
| Rotational speed (RPM) | 7200 | 7200 |
| Sustained transfer rate | ||
| (MiB/s, typical) | 257/250 | 257/250 |
| (MB/s, typical)4 | 269/262 | 269/262 |
| Reliability | ||
| Error rate (non-recoverable bits read) | 1 in 1015 | 1 in 1015 |
| MTBF (M hours, projected)5 | 2,5 | 2,5 |
| Annualized Failure Rate (AFR, projected) | 0.35% | 0.35% |
| Load/Unload cycles (at 40°C) | 600 | 600 |
| Availability (hrs/day x days/wk) | 24x7 | 24x7 |
| Limited Warranty (yrs) | 5 | 5 |
| Acoustics | ||
| Idle/Operating (Bels, typical) | 2.0/3.6 | 2.0/3.6 |
| Power | ||
| Requirement | +5 VDC, +12VDC | +5 VDC, +12VDC |
| Operating (W)6 | 6,5 | 8,8 |
| Idle (W)7 | 5,6 | 5,8 |
| Power consumption efficiency at Idle | 0.31/0.35 | 0.32/0.36 |
| (Watts/TB) | ||
| Physical Size | ||
| z-height (mm) | 26.1 | 26.1 |
| Dimensions (width x depth, mm) | 101.6 (+/-0.25) x 147 | 101.6 (+/-0.25) x 147 |
| Weight (g, max) | 690 | 690 |
| Environmental (Operating) | ||
| Ambient temperature | 5°C to 60°C | 5°C to 60°C |
| Shock (half-sine wave, 2ms, G) | 70 | 70 |
| Vibration-Operating (G RMS, 5 to 500 Hz) | 0.67 (XYZ) | |
| Environmental (Non-Operating) | ||
| Ambient temperature | -40°C to 70°C | -40°C to 70°C |
| Shock (half-sine wave, G) | 250 (2ms)/ 150 (11ms) | 250 (2ms)/ 150 (11ms) |
| Random Vibration (G RMS, 2 to 200 Hz) | 1.04 (XYZ) | 1.04 (XYZ) |
Disk s kapacitou 18 TB a 512 MB bufferem, určený pro serverové aplikace. Rotace 7200 RPM, rozhraní SAS 12 Gb/s. Vysoká spolehlivost s MTBF 2,5 milionu hodin a nízkou mírou selhání 0,35 %. Ideální pro náročné datové nasazení.