We're disappointed to report that the U5 falls far short of meeting its promising 8.9 millisecond seek time
. Our measurements place the drive's access time
at 19.4 milliseconds. This figure is easily the highest access time we've ever recorded... worse than even the 4400 RPM
, 12 millisecond seek Quantum Fireball lct15
. Subtracting the standard 5.6 milliseconds associated with 5400 RPM rotational latency
yields a measured seek time of 13.8 milliseconds... nearly 5 ms off the mark.
Sequential transfer rates, on the other hand, are respectable. The Seagate's outer-zone measurement of 31.6 MB/sec edges out scores from competing Fujitsu and IBM disks. Likewise, its inner-zone score of 20.7 MB/sec sets a record for a 5400 RPM drive.
So, how do these rather unique scores translate into high-level performance? Let's move on and discover.