The Lenovo X230 has an SSD storage medium which is better than the HDD storage medium found on most portable PCs of a comparable age and type to it. 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 notebook PC's storage medium (SSD) is actually the best storage medium amongst all portable PCs that were released around the same time as the X230.
An HDD storage medium is the worst storage medium across similar types of notebook PC.
If the storage medium of this portable PC is not good enough for you then you might want to consider the Lenovo T420s[plb_48433_price] (SSD).