The Viglen SAS JBOD is true — with no restriction on which SAS HBA/RAID controller and SAS/SATA HDD we support. Many of the branded solutions can only support their own controllers and certain brands of HDD where we try to be compatible to all the products.
The Viglen SAS JBOD is reasonably priced even with enterprise features such as hot-swap and fail-over support on our expander modules. We also provide full service on firmware customizations if needed where other products do not support.
Why have SAS?
SAS architecture is the most efficient way to build a scalable and reliable storage on. SAS is easy to manage and expand, and SAS allows user to choose between Enterprise SAS HDD or Near-line SATA HDD depending on the type of storage product they are building. There is no other architecture that can support this.
SAS JBODs can be attached to any server directly that has a SAS HBA or RAID controller. There is no complex topology that requires a diagram to demonstrate. However, SAS also supports a fan-out switch architecture like a network switch, and by using a switch a server can connect to different SAS products such as JBOD, RAID subsystem, or even future SAS based Tape without daisy-chain.