Because we needed to source a pile of these we developed the simple spec comparisons below and highlighted the notables:
Brand | Seagate | Seagate | Western Digital | Western Digital |
Product | Baracuda Pro | Exos X Series | HGST Ultrastar DC | Gold Enterprise |
Part # | ST12000DM0007 | ST12000NM0007 | HUH721212ALE604 | WD121KRYZ |
Capacity | 12TB | 12TB | 12TB | 12TB |
Size | 3.5″ | 3.5″ | 3.5″ | 3.5″ |
Rotation | 7200RPM | 7200RPM | 7200RPM | 7200RPM |
Interface | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s | SATA 6Gb/s |
Cache | 256MB | 256MB | 256MB | 256MB |
Sustained Transfer | 250MB/s | 250MB/s | 250MB/s | 250MB/s |
Latency | 4.16ms | 4.16ms | 4.16ms | 4.16ms |
Acoustic Idle/Seek | 28/34 | 28/34 | 20/36 | 20/36 |
Workload | 300TB/yr | 550TB/yr | 550TB/yr | 550TB/yr |
MTBF | 1M Hours | 2.5M Hours | 2.5M Hours | 2.5M Hours |
Warranty | 5 Years | 5 Years | 5 Years | 5 Years |
Spec Sheet | Click HERE | Click HERE | Click HERE | Click HERE |
Brand | Seagate | Western Digital |
Product | Baracuda Pro | HGST Ultrastar DC |
Part # | ST14000DM001 | WUH721414ALE6L4 |
Capacity | 14TB | 14TB |
Size | 3.5″ | 3.5″ |
Rotation | 7200RPM | 7200RPM |
Interface | SATA 6Gb/s | SATA 6Gb/s |
Cache | 256MB | 512MB |
Sustained Transfer | 250MB/s | 250MB/s |
Latency | 4.16ms | 4.16ms |
Acoustic Idle/Seek | 18/28 | 20/36 |
Workload | 300TB/yr | 550TB/yr |
MTBF | 1M Hours | 2.5M Hours |
Warranty | 5 Years | 5 Years |
Spec Sheet | Click HERE | Click HERE |
Take note that a couple of years ago Western Digital decided to rebrand its high end disks from “Gold” to “HGST Ultrastar” but they have apparently reversed that decision:
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