How does SSD work ?

Hi !!
I have Lenovo U510 with 500Gb HDD and 24Gb SSD, running Windows 8.
In Disk Management I can see DIsk0 (two partitions: 18Gb+4Gb) and Disk1 with 6 partitions.
Disk0 appears 100% free.
Start times and Suspend and Resume times are very short, so I think the system is using SSD with Intel Rapid Start.
questions:
1.- Is DISK0 the SSD ?
2.- How can it be 100 % free ?
3.- How does Windows use the SSD ?
Thanks.
LRobert.
Solved!
Go to Solution.

hi LRobert,
Thanks for using Lenovo Community Forums!
1.- Is DISK0 the SSD ?
                   Yes you're SSD is the Disk 0,
2.- How can it be 100 % free ?
                    You're SSD is only being used as Cache Memory, So technically no permanent data will be stored on it, Just like RAM memory being cahed.
3.- How does Windows use the SSD ?
                    You SSD is being used by two Intel Features, Intel Rapid Storage and Intel Rapid start.
                            That's the two partition you're seeing on the SSD
    Intel Rapid Storage 18Gb
                    SSD is known for Speed but less size capacity 24GB while your HDD has 500GB but runs on normal speed. Rapid storage will mix and utilize two features(SSD speed and HDD storage) by caching the HDD data to your SSD for Fast Access.
      Intel Rapid Start 4Gb
                    Normally Windows 8 Hibernation and Shut Down will save your system Image to your Hdd and access it upon boot. with Intel Rapid Start it redirects the Image to your SSD for Fast access on System Boot up.
Hope this helps,
Cheers!
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