"Planning for solid state drive (SSD) hardware is a
complex task that requires a good understanding of how SSDs are
going to be used within your storage networking environment, so it
is best to start with the first part of this series to understand
application and software issues (see Solid State Drives in
"This second article will deal with SSD hardware issues, and the
third and final installment will address some important SSD design
issues, along with SAS and RAID controller issues.
"There are two basic types of interfaces for SSD hardware: PCIe
and Fibre Channel/SAS/SATA. Each of these types of interfaces has
strengths and weaknesses, and these tradeoffs are important to
"Another issue is solid state drive management. The question is
whether SSDs should be placed in RAID controllers, or whether they
should be connected via another interface. Of course, SSD
performance is a big issue, or you wouldn't even be considering
purchasing them. We have all heard about wear leveling, write
performance degradation and other performance issues found in some
flash-based SSDs. There has been a great deal written on these
topics, so I am just going to cover some important details to
understand. And last but not least is the question of SSD
reliability. As always, let's start with reliability, as few things
matter more to enterprise data storage users."
Some of the products that appear on this site are from companies from which QuinStreet receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. QuinStreet does not include all companies or all types of products available in the marketplace.