There are two types of sparing strategies available on EMC Symmetrix Series of machines. Dynamic Hot Sparing: Starting the Symmetrix 4.0, EMC had introduced dynamic hot spares in its Enginuity code to support customers against failing disk drives and reducing the probability of a data loss. … [Read more...]
EMC Symmetrix DMX-4 and Symmetrix V-Max: Basic Differences
In this post we will cover some important aspects / properties / characteristics / differences between the EMC Symmetrix DMX-4 and EMC Symmetrix V-Max. It seems like a lot of users are searching on blog posts about this information. From a high level, I have tried to cover the differences in … [Read more...]
EMC Symmetrix V-Max: Supported drive type
With the release of EMC Symmetrix V-Max systems, EMC introduced higher density EFD’s (Enterprise Flash Disks) than being supported on its predecessor, the EMC Symmetrix DMX-4. Below are some stats related to the supported drive types on a Symmetrix V-Max system with 5874.123.104 … [Read more...]
EMC Symmetrix V-Max: Enginuity 5874
EMC Symmetrix V-Max systems were introduced back in the month of April 2009. With this new generation of Symmetrix came a new name V-Max and a new Enginuity family of microcode 5874. To read about Symmetrix on StorageNerve Blog: http://storagenerve.com/tag/symmetrix To read about V-Max systems on … [Read more...]
EMC Symmetrix DMX-4: Supported Drive Types
In this blog post we will discuss the supported drive models for EMC Symmetrix DMX-4. Right before the release of Symmetrix V-Max systems, in early Feb 2009 we saw some added support for EFD’s (Enterprise Flash Disk) on the Symmetrix DMX-4 platform. The additions were denser 200GB and 400GB … [Read more...]
HDS High Availability Manager: How It Works

It has been two days since HDS surprised the enterprise storage world by not announcing a new storage platform to take on the EMC Symmetrix V-Max. Instead, HDS introduced High Availability Manager ("HAM" to us), disappointing some and confusing others. Now that the dust has settled some, it has … [Read more...]
A Taste Of HAM (Apologies To The Doctor)

HDS: Hello, I am HDS man/Would you like some HDS HAM? Bloggers: I'd like to know 'bout HDS HAM/What is it, oh HDS man? HDS: HAM moves bits from here to there/Available anywhere! Bloggers: My data has replication/Your brain must be on vacation! HDS: HAM automates operation/Don't you want … [Read more...]
HDS’ HAM-Fisted Announcement Can’t Be All
HDS telegraphed that a big announcement was coming today. They even made it fun, with a (literally) cryptic blog entry to make sure we were all watching. But the announcement of High Availability Manager, a software product to manage existing HDS USP-V and USP-VM arrays, underwhelmed. In fact, … [Read more...]
EMC Symmetrix V-Max: When Does It Get FAST and Virtual?

EMC caused a major stir on April 14 as they announced the next-generation Symmetrix enterprise storage array, the V-Max. Since that time, many of the features have been discussed and dissected on various blogs at the same time as EMC moves forward with sales of the new system. But one question … [Read more...]
Vaulting on EMC Symmetrix V-Max Systems
In this blog post we will cover the Vaulting technology related to the EMC Symmetrix V-Max and the DMX-4 technology. Vaulting is a key feature added on DMX-3 series of machines, which was further extended into the DMX-4’s and now the Symmetrix V-Max Systems. With power outages or major power … [Read more...]