APIOTEK DUAL eSATA II with RAID Express Card Adapter

We used IOMeter and HD-Tach for testing performance. All tests were done using eSATA as well as USB for comparisons. Tests were done on two 250GB Seagate SATA drives and two eSATA supporting hard drive enclosures. We will show change in speeds between eSATA and USB.

100% sequential Reads – 64K Transfer request size (0% Random)

eSATA

USB

95% sequential Reads – 64K Transfer request size (5% Random)

eSATA

USB

80% sequential Reads – 64K Transfer request size (20% Random)

eSATA

USB

Now we look at Random reads:

100% Random Reads – 64K Transfer request size (0% Sequential)

eSATA

USB

Now we look at write performance:

100% Sequential Writes – 64K Transfer request size (0% Random)

eSATA

USB

95% Sequential Writes – 64K Transfer request size (5% Random)

eSATA

USB

80% Sequential Writes – 64K Transfer request size (20% Random)

eSATA

USB