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Seagate Cheetah X15-36LP


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Seagate Cheetah X15-36LP
  July 19, 2001 Author: Eugene Ra  


WB99/Win2k Low-Level Measurements

 Testbed II Low-Level MeasurementsDetails... 
Windows 2000 Professional using NTFS
Seagate Cheetah X15-36LP (36.7 GB Ultra160/m SCSI) - 5.9|
Fujitsu MAM (36 GB Ultra160/m SCSI) - 6.0|
IBM Ultrastar 36Z15 (36.7 GB Ultra160/m SCSI) - 6.7|
Fujitsu MAN (36.7 GB Ultra160/m SCSI) - 8.1|
Maxtor 536DX (100 GB ATA-100) - 14.7|
Fujtisu MPG-AH (20.4 GB ATA-100) - 14.8|
Windows 2000 Professional using NTFS
Seagate Cheetah X15-36LP (36.7 GB Ultra160/m SCSI) - 60500|
Fujitsu MAM (36 GB Ultra160/m SCSI) - 57200|
Fujitsu MAN (36.7 GB Ultra160/m SCSI) - 55400|
IBM Ultrastar 36Z15 (36.7 GB Ultra160/m SCSI) - 49100|
Fujtisu MPG-AH (20.4 GB ATA-100) - 38600|
Maxtor 536DX (100 GB ATA-100) - 31400|
Windows 2000 Professional using NTFS
Seagate Cheetah X15-36LP (36.7 GB Ultra160/m SCSI) - 45000|
Fujitsu MAM (36 GB Ultra160/m SCSI) - 44800|
Fujitsu MAN (36.7 GB Ultra160/m SCSI) - 35800|
IBM Ultrastar 36Z15 (36.7 GB Ultra160/m SCSI) - 34900|
Fujtisu MPG-AH (20.4 GB ATA-100) - 26000|
Maxtor 536DX (100 GB ATA-100) - 19000|

Click here to examine the STR graph for this drive

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The X15-36LP weighs in with a WinBench 99 measured access time of just 5.9 milliseconds, easily the lowest we've recorded to date. Subtracting 2 ms to account for the average rotational latency of a 15,000 RPM drives yields a measured seek time of 3.9 milliseconds, about 0.2 ms off of the 3.7 ms spec... not bad, especially for a Seagate drive . The original X15 turned in a measured access time of 6.8 milliseconds. As a result, in a backwards kind of way, the X15-36LP brings a significant improvement to the table; 0.9 milliseconds translates to a 15% overall access time enhancement.

Transfer rates similarly forge ahead into record territory with outer-zone measurements topping 60 MB/sec. The X15-36LP's smaller-diameter platters (2.6") minimize "decay," permitting sustained speeds in excess of 50 MB/sec over more than 80% of the disk and bottoming out at a still-impressive 45 MB/sec.

 WinMarks...


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