How does an SSD determine what data should go in it's cache memory for optimised retrieval?
When a file is removed from an SSD, how does the SSD make sure the free space can be optimally written to?
When a file is appended (changed, made larger), how does an SSD make sure the appended portion of the file can be optimally retrieved?
Does file fragmentation exist on SSDs? If so, does it have an impact on the performance of the cache memory?
edit, Note: If you seem to post a response without reading this I will downvote you.
Answer by besttech · Aug 23, 2012 at 11:58 AM
File fragmentation occurs on both HDD and SSD. The impact can be sever for both. The ability to defrag an SSD could be counter productive as you will invariably occur invalid wear and tear on the device if you use an incorrect defrag policy.
Think carefully about your use of SSD, make sure you understand how fragmentation can impactsystem performance prior to any defrag activity.
And don't be so pompous as to downgrade well meaning contributors because they can't answer in exactly the way you think.
Answer by jadtechnic · Aug 23, 2012 at 12:25 PM
fragmentation is one of the reasons SSD is not ready for prime time the #1 killer of SSD is write and remove (delete) its great for data that is goingto be kept and held like music libraries its good as a boot drive but as I under stand SSD slows boot down a lot ..