The Toshiba Portégé Z30-A has a better storage medium than most notebook PCs of a comparable age and type to it. This portable PC has an SSD storage medium, whereas most medium processor core notebook PCs that were released more than two years ago 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.
This portable PC's storage medium (SSD) is actually the best storage medium across all laptops that have been available for a comparable time to the Portégé Z30-A.
Across comparable types of portable PC the worst storage medium is HDD.
If the storage medium of this portable PC is too bad for you then you might want to consider the T420s (£1,388.87) (SSD), or the S540 (SSD) both from Lenovo.