Problem solve Get help with specific problems with your technologies, process and projects.

How do flash caching software products differ from one another?

Marc Staimer, independent storage expert, discusses flash caching software in this Expert Response.

Is there a lot disparity between flash caching software products available today? For example, how does flash caching...

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).

This was last published in January 2013

Dig Deeper on Flash storage for applications



Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Join the conversation

1 comment

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

Take a look at Proximal Data...killing it in the VMware market!