As of SunVTS 3.0 software, SunVTS disktest by default does not mount any mountable partitions. To have SunVTS software mount all partitions that contain a file system, set the environment variable BYPASS_FS_PROBE to 0 (zero), then start SunVTS software. For more details, refer to the disktest chapter in the SunVTS 3.4 Test Reference Manual.