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IBM Ultrastar 36LZX


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IBM Ultrastar 36LZX DDYS-T18350
  June 7, 2000 Author: Eugene Ra  

WB99/Win2k Low-Level Measurements

 Testbed II Low-Level MeasurementsDetails... 
Windows 2000 Professional using NTFS
Quantum Atlas 10k II (36.7 GB Ultra160/m SCSI) - 7.9|
Fujitsu MAJ3xxx (18.2 GB Ultra160/m SCSI) - 8.5|
IBM Ultrastar 36LZX (18.3 GB Ultra160/m SCSI) - 8.5|
Seagate Cheetah 18XL (18.4 GB Ultra160/m SCSI) - 8.9|
Seagate Cheetah 36LP (36.7 GB Ultra160/m SCSI) - 9.0|
Seagate Cheetah 18LP AV (18.2 GB Ultra160/m SCSI) - 9.1|
Windows 2000 Professional using NTFS
Fujitsu MAJ3xxx (18.2 GB Ultra160/m SCSI) - 42767|
Quantum Atlas 10k II (36.7 GB Ultra160/m SCSI) - 41467|
Seagate Cheetah 36LP (36.7 GB Ultra160/m SCSI) - 36167|
Seagate Cheetah 18XL (18.4 GB Ultra160/m SCSI) - 35967|
IBM Ultrastar 36LZX (18.3 GB Ultra160/m SCSI) - 34800|
Seagate Cheetah 18LP AV (18.2 GB Ultra160/m SCSI) - 28100|
Windows 2000 Professional using NTFS
Fujitsu MAJ3xxx (18.2 GB Ultra160/m SCSI) - 28300|
Quantum Atlas 10k II (36.7 GB Ultra160/m SCSI) - 25000|
Seagate Cheetah 18XL (18.4 GB Ultra160/m SCSI) - 25000|
Seagate Cheetah 36LP (36.7 GB Ultra160/m SCSI) - 24100|
IBM Ultrastar 36LZX (18.3 GB Ultra160/m SCSI) - 22800|
Seagate Cheetah 18LP AV (18.2 GB Ultra160/m SCSI) - 17500|

Click here to examine the STR graph for this drive

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WinBench 99 measures the Ultrastar 36LZX's access time at 8.5 milliseconds... perhaps just a tad higher than what should be expected given the drive's specified seek time of 4.9ms. The Ultrastar does manage to hold onto a 0.4ms lead over the Cheetah. The Quantum Atlas 10k II, however magnifies its supposed 0.2ms lead to a relatively hefty 0.7ms when under the scrutiny of WinBench.

IBM's drive brings up the rear of 4th-generation 10k RPM offerings when it comes to sequential transfer rates. In its outermost zone, the 36LZX manages 35 megs a second... lagging slightly behind the Cheetah's 36 MB/sec figure and quite a bit behind the Atlas 10k II's 40 MB/sec. Similarly, the transfer rate in the innermost zone of the Ultrastar, 23 MB/sec, trails the 25 MB/sec posted by its competitors.

 WinMarks...


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