The Tecra Z40-A has a better storage medium than most portable PCs of a comparable spec and age to it. This portable PC has an SSD storage medium, whereas most notebook PCs of this type and age have an HDD storage medium. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
An SSD storage medium is actually the best storage medium amongst all notebook PCs of a comparable age and type to the Tecra Z40-A.
The worst storage medium amongst similar types of laptop is HDD.
If the storage medium of this notebook PC is too bad for you then you might also want to consider the DELL XPS 13 (SSD).