Is there a lot disparity between flash caching software products available today? For example, how does flash caching...
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
software from companies like Velobit and Nevex compare to flash cache products from major storage vendors like EMC and NetApp?
Yes, there are huge differences. The majority of caching software is block-based (such as Velobit), meaning it is used with SAN storage. It caches blocks based on an algorithm. That algorithm can be based on frequency of access where it puts the data into the cache when it meets certain frequency levels and takes it out when those levels drop.
Some algorithms are based on data age. New data is always placed in the cache. As it ages, it's purged. Some caching software even allows specific data to be "pinned" in the cache so that it is always there. The only file-level caching software is Nevex (recently acquired by Intel).
Dig Deeper on SSD utility and application tools
Related Q&A from Marc Staimer
Flash SSDs have become more popular in general-purpose storage thanks to lower price points and increased performance, leading to expanded capacity ...continue reading
When compared with earlier Serial ATA standards, SATAe is more advanced, reduces latency, has a higher performance level and offers backwards ...continue reading
Latency in object stores that stems from a large amount of metadata means the technology is better suited to non-transactional data.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.