The Linuxbsdos.com website has a worth reading comparison of FreeNAS and OpenFiler.
But the LearnFreeNAS.com web site has pointed out a simple, but yet fundamental, mistake in their review.
In the conclusion Linuxbsdos.com writes, “The main difference between FreeNAS and Openfiler is that one is a network-attached storage (NAS) server, while the other serves as both a NAS and a SAN (Storage Area Network) server. The SAN feature of Openfiler is what makes it appealing to enterprise and business users.”
The reason for this is that the reviewer didn’t know that FreeNAS also has iSCSI target capabilities and they only list iSCSI initiator in the feature list of FreeNAS.
Just to set the record straight: FreeNAS has iSCSI target as well as iSCSI initiator features and can act very well as an iSCSI/SAN server.
Read more here: FreeNAS vs Openfiler Review Forgets that FreeNAS can do iSCSI
the comparison does not go so deep imho.
For instance, the fact Openfiler can do softraid6 and Freenas cannot may be a single decicive criterium for some..
BTW, iscsi gets a lot of attention where it is not used by many for good reasons… a nice article about why it never was as succesful as the hype can be found here : http://www.enterprisestorageforum.com/technology/features/article.php/3684781