Next goes our homemade test of defragmentation speed. We created a very defragmented file system on a 32GB partition of a disk by loading it with music, video, games and applications. Then we saved a per-sector copy of the disk and now copy it to the disk we want to test. Next we run a script that evokes the console version of the Perfect Disk 8.0 defragmenter and marks the time of the beginning and end of the defragmentation process. For more information about it, you can refer to this article.
So, here is one more test where the SAS drives are inferior to desktop ones. The best of desktop HDDs pass it in less than 20 minutes while the Hitachi 15K147, the best HDD in this test, spends 50% more time that that. We can note that Fujitsu’s 147GB and 300GB drives and the maximum-capacity disks in the Seagate 15K.7 and 15K.6 series are better than the others.
There are also two HDDs that are very poor here: the 73GB Seagate 15K.5 and the Hitachi 15K300. It is rather too much to spend one hour to defragment 24 gigabytes of data.
Performance in WinRAR
Now we are going to show you one more interesting test in which we use WinRAR version 3.8 to compress and then uncompress a 1.13GB folder with 8118 files in 671 subfolders. The files are documents and images in various formats. These operations are done on the tested drive. This test depends heavily on CPU performance, but the storage device affects its speed, too.
The HDDs differ but little when compressing data, but we can note that the Maxtor and Fujitsu’s MBA3 RC series are in the lead while the 73GB Seagate 15K.5 and Hitachi 15K147 are on the losing side. The Seagate NS.2 is slow, too.
The difference is bigger when the HDDs are unzipping the archive: the leader is almost 50% better than the worst model. The Seagate 15K.7 is first, followed by the 300GB Seagate 15K.6 and 300GB Fujitsu MBA3 RC. The three slowest drives are the same as in the previous test: 73GB Seagate 15K.5, Hitachi 15K147 and Seagate NS.2.