If you work with EMC Symmetrix systems, you know the importance of VCMDB. Introduced with Symmetrix 4.0 and used in every generation after that, VCMDB stands for Volume Control Manager Database). Also in the latest generation of systems the VCM device is at times also referenced as VCM Gatekeeper.
dmx-3
Symmetrix: The Journey of 20 Years
So this year will mark the history of the Symmetrix products, 20 years since its inception and the Symmetrix has come long ways. Initially released in 1990, today’s Symmetrix does not come any close to what the product was 20 years ago. The underlying code (Enginuity) is what drives and gives the Symmetrix its personality. Symmetrix was a compute / storage beast 20 years ago and so it is today.
EMC Symmetrix, 20 Years in the making
So next year will mark a history of Symmetrix Products within EMC, still classified as one of the most robust systems out there after 20 years of its inception. In this blog post, we will talk about some facts on Symmetrix products as it relates to its features, characteristics, Enginuity microcode versions, model numbers, year released, etc.
EMC Symmetrix DMX device type, COVD: Cache Only Virtual Device
Here is some information on Cache Only Virtual Devices. I do not have a very clear picture on the overall operation of this device type, but from a high level it can be summed up as following based on it characteristics.
Expectations with new Generation of DMX Technology
There has been a big chatter about the next generation of EMC machines. After the initial release of DMX-3’s in 2005 and then the DMX-4’s in 2007, next generation DMX is almost due now. Here is my wish list or expectations on the new DMX Platform.