Active Active vs. Active Passive arrays- which is best?

Data Storage vendors are seen busy promoting their storage appliances as Active/Active or Active/Passive arrays. But from consumer’s point of view, what do these features actually mean? And do these features have the potential to influence the minds of those buying storage? Let’s learn about it in this article.

First let’s get into the basics of this technological concept and then try to read the facts. In the world of data storage, there is no question of downtime and for this reason storage arrays (FC, iSCSI and NAS) are configured with two or more controllers to work in active/active mode or active/passive mode.

Active/Passive means that one controller is active and processes I/O requests, while other is on a standby mode. The idle controller is ready to take over I/O activity should the active primary controller fail or be taken offline.

In the case of Active/Active configuration enables both controller nodes to process I/Os and provide a standby capability for the other. In simple words, it means that both the controllers’ not only process all the requests on an individual note, but also have the capability to take on the IO of the other, if in case, one goes down.

The concept of high availability starts from here, as there is no question of downtime in environments which have an Active/Active or Active/Passive hardware.

StoneFly, Inc. a wholly owned business unit of Dynamic Network Factory offers Active/Active clustering in all its highly available appliances. The appliances are embedded with dual raid controllers, storage controllers and other hardware like power supplies. Moreover, its patented StoneFusion operating system software helps in intelligently interlacing and managing the hardware. So, if one goes down, the other takes on the job on a simultaneous note. in an automated way. It means the admin’s work gets easy and simple.

To know more on this innovation call 510.265.1616 or contact StoneFly Support


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