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...
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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.
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.
vSphere Virtual Machine Upgrade Process
Part of upgrading your VMware Infrastructure 3.x environment to VMware vSphere 4 also involves upgrading your virtual machines. This process upgrades the VMware Tools, virtual machine hardware, and installs the latest...
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.
New HDS AMS — Do We Need Enterprise Storage?
I’ve just been reading through the press release from HDS on their new AMS enhancements. Hu Yoshida has blogged about the new features too (it makes a change to hear something different than another discussion on UVM)...
VMware vSphere vDS, VMkernel Ports, and Jumbo Frames
You may recall that I wrote about how to enable jumbo frames on VMkernel ports used for IP-based storage early last year. Here are some updated instructions on how to do the same with vSphere, only this time using a vNetwork...
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...
New User’s Guide to Configuring VMware ESX Networking via CLI
After spending some time today walking a customer through the basics of configuring VMware ESX networking, I realized that my site doesn't provide much information for new users. I'm going to address that with a series of posts...
Tap into vSphere PVSCSI Performance with Separate VM Boot and Data Drives
One of the most interesting new vSphere storage features in my opinion is the new virtual disk paravirtualized SCSI (PVSCSI) controller. It has been reported that improved I/O with as much as 18% reduction in ESX 4 host CPU usage...