The Elitebook 2170p has an SSD storage medium which is better than most medium processor core notebook PCs that have been on the market for more than two years. Most comparable spec laptops that have been on the market for around the same time as it 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 across all medium processor core notebook PCs that have been around for more than two years.
An HDD storage medium is the worst storage medium amongst similar types of portable PC.
Notebook PCs with a better storage medium that might also be worth considering include the T420s[pl_48433_price] (SSD), or the S540[pl_2433540_price] (SSD) both from Lenovo.