Changes

Hard disk drives have the clear advantage in this area, since they are much less expensive than solid-state, but they have a slower read/write rate.<ref name="howtogeek.com">http://www.howtogeek.com/195262/hybrid-hard-drives-explained-why-you-might-want-one-instead-of-an-ssd Retrieved September 15, 2016</ref><ref name="pcworld.com">http://www.pcworld.com/article/2025402/ssds-vs-hard-drives-vs-hybrids-which-storage-tech-is-right-for-you-.html Retrieved September 15, 2016</ref> They are also durable, and do not typically wear out from being written to in excess.  Although they have moving parts (the spinning platters and read arms), they tend to last very well.<br />

Hard disk drives have the clear advantage in this area, since they are much less expensive than solid-state, but they have a slower read/write rate.<ref name="howtogeek.com">http://www.howtogeek.com/195262/hybrid-hard-drives-explained-why-you-might-want-one-instead-of-an-ssd Retrieved September 15, 2016</ref><ref name="pcworld.com">http://www.pcworld.com/article/2025402/ssds-vs-hard-drives-vs-hybrids-which-storage-tech-is-right-for-you-.html Retrieved September 15, 2016</ref> They are also durable, and do not typically wear out from being written to in excess.  Although they have moving parts (the spinning platters and read arms), they tend to last very well.<br />

Therefore, in Solid-State Hybrid Drives, a large amount of space is consumed by hard disk platters (usually 2.5 inch)<ref name="pcworld.com2"/> and read arms with heads, but some space is also used by flash memory chips.  When this drive is in use, cache data and important systems files are saved to the flash memory.  The drive will also determine what other files are in high demand, and keep those on flash memory.  The rest of the information which is used much less is stored on the hard disks.  This means that data in high-demand can be retrieved quickly, but less-used data is still available.  Even this lesser-used information may be faster to retrieve, since the read heads should not need to be working to retrieve as much other information at the same time.<ref name="howtogeek.com"/><ref name="pcworld.com"/><br />

Therefore, in Solid-State Hybrid Drives, a large amount of space is consumed by hard disk platters (usually 2.5 inch)<ref name="pcworld.com2"/> and read arms with heads, but some space is also used by flash memory chips.  When this drive is in use, cache data and important systems files are saved to the flash memory.  The drive will also determine what other files are in high demand, and keep those on flash memory.  The rest of the information which is used much less is stored on the hard disks.  This means that data in high-demand can be retrieved quickly, but less-used data is still available.  Even this lesser-used information may be faster to retrieve, since the read heads should not need to be working to retrieve as much other information at the same time.<ref name="howtogeek.com"/><ref name="pcworld.com"/><br />

For Hybrid drives to operate efficiently, they need to "learn" how various resources are used.  During this "break-in" period, they record what is used most, and allocate flash memory space to these resources.  For this reason, their performance at first will often seem no different than traditional hard disk drives.  However, their efficiency does improve with use.<ref name="pcworld.com"/>

For hybrid drives to operate efficiently, they need to "learn" how various resources are used.  During this "break-in" period, they record what is used most, and allocate flash memory space to these resources.  For this reason, their performance at first will often seem no different than traditional hard disk drives.  However, their efficiency should improve with use.<ref name="pcworld.com"/>

==Potential concerns==

==Potential concerns==