Internet Small Computer System Interface, widely known as iSCSI in the field of data storage is a type of technology which is designed to work in tandem with a TCP layer to create the ability to send SCSI commands over a LAN or a WAN.
Even though, iSCSI storage has gained traction in enterprise environments for years, they are still some misconceptions about this storage. So, here’s an article which clarifies the top most of them to the point.
iSCSI and NAS – One of the biggest myths about iSCSI is that it is incompatible with traditional NAS systems. But in reality, it is totally false, as there are many different types of iSCSI storage systems that include native support for NAS-called Unified Storage systems. There are also NAS systems that include native support for iSCSI, allowing both types of technology to completely work together in a cost-effective way.
Partitioning – There is another myth in the storage industry that iSCSI storage cannot be partitioned as per the requirements of RAID deployment. The truth is completely opposite to what the current myth states. Both the iSCSI protocol and the associated specifications completely allow partitioning these types of solutions. Whether or not a particular iSCSI can be partitioned as a redundant array, is however something that each vendor will determine on an individual note.
iSCSI storage disks – The other biggest myth which is on the prowl among the IT pros is the way this technology actually works. Many people are still unsure whether iSCSI storage can be treated as an individual drive, or if it’s a type of network attached storage solution. The reality is something of a combination of these two scenarios. In traditional sense of the term, any disk that is connected to an iSCSI storage system will appear on attached computers as an iSCSI disk.
Finally, while implementing iSCSI storage in your enterprise IT environment, you need to keep a few things in mind. You should grade the product selection based on factors such as scalability, cost and the ability to perform and sustain in your work environment. You will also decide whether you are creating a separate network for iSCSI or a dedicated network, which is a decision that will largely come down to your own performance requirements.