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Rounding Out the Database: The Seagate Barracuda ATA ST320430 and IBM Deskstar 75GXP DTLA-307075


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Rounding Out the Database: The Seagate Barracuda ATA ST320430 and IBM Deskstar 75GXP DTLA-307075
  June 12, 2000 Author: Eugene Ra  

WB99/Win2k Low-Level Measurements

 Testbed II Low-Level MeasurementsDetails... 
Windows 2000 Professional using NTFS
Seagate Barracuda ATA (20.4 GB ATA-66) - 12.2|
IBM Deskstar 60GXP (60.0 GB ATA-100) - 12.3|
IBM Deskstar 75GXP (45.0 GB ATA-66) - 12.4|
Maxtor DiamondMax Plus 45 (46.1 GB ATA-100) - 12.9|
Maxtor DiamondMax Plus 60 (60.0 GB ATA-100) - 13.1|
IBM Deskstar 75GXP (75.0 GB ATA-66) - 13.3|
Windows 2000 Professional using NTFS
IBM Deskstar 60GXP (60.0 GB ATA-100) - 39033|
Maxtor DiamondMax Plus 60 (60.0 GB ATA-100) - 38433|
IBM Deskstar 75GXP (45.0 GB ATA-66) - 37200|
IBM Deskstar 75GXP (75.0 GB ATA-66) - 36967|
Maxtor DiamondMax Plus 45 (46.1 GB ATA-100) - 32600|
Seagate Barracuda ATA (20.4 GB ATA-66) - 27933|
Windows 2000 Professional using NTFS
Maxtor DiamondMax Plus 60 (60.0 GB ATA-100) - 22900|
Maxtor DiamondMax Plus 45 (46.1 GB ATA-100) - 21700|
IBM Deskstar 60GXP (60.0 GB ATA-100) - 21300|
IBM Deskstar 75GXP (75.0 GB ATA-66) - 19933|
IBM Deskstar 75GXP (45.0 GB ATA-66) - 19700|
Seagate Barracuda ATA (20.4 GB ATA-66) - 19400|

Click here to examine the STR graph for this drive

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As one might expect, the 75 gig GXP's sequential transfer rates are quite similar to those of the 45 gig version... no big deal. The interesting thing here is access time. Though both the 45 and 75 gig drives are rated at a 8.5 ms seek time (and thus @12.7ms access time), results vary. The 45 manages to actually beat its specified access time by a small amount, while the 75 weighs in a bit above. The net result is a difference of nearly 1ms between the two units- quite significant for two drives within the same family!

Likewise, the 20.4 gig 'Cuda ATA turns in transfer rates comparable to those of its larger 28 gig brother (not shown here- for 'Cuda 28 results, please visit the StorageReview.com Database; interestingly, the smaller drives' innermost transfer rate is almost 1 MB/sec faster). Though the drive's access time is impressively low for an ATA drive (only the Fireball Plus LM beats it), it can't meet it's ambitious specified 11.8ms access time.

 WinMarks...


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