Varrow Blog

A blog about Virtualization, Storage, Disaster Recovery and Technology in general.

Category Archives: vblog

Cisco Live 2012 – FCoE – Design, Operations and Management Best Practices

Encapsulation of FC Frames over Ethernet, Enables FC to Run on a Lossless Ethernet Network Benefits  * Fewer Cables  * Fewer adapters needed  * Overall less power  * No Gateway  * Interops with existing SANs and management remains consistent Ether...
Posted in vblog | Comments closed

Cisco Live 2012 – SAN Core Edge Design Best Practices

With traditional networks, some amount of loss is acceptable.  Storage requires a lossless network. N port: Node ports used to connect devices to switched fabric or point to point configs F port: Fabric ports residing on switches connecting N port dev...
Posted in vblog | Comments closed

Cisco Live 2012 – Data Center Design for the Small and Medium Business

Hypervisor-Based Server Virtualization Virtualization benefits  * Better hardware utilization and application availability  * Workload Mobility, within or across CD’s  * Reduced provisioning time/effort Increasing demands on the network  * La...
Posted in vblog | Comments closed

Cisco Live 2012 – UCS Architecture Overview

 Emphasis is in the system, not individual blades or chassis One logical Chassis to Manage 160 servers  * LAN Connectivity  * SAN Connectivity  * Multiple Chassis  * Blade and Rack Servers  * Server Identity Management (Service Profile)  * Monit...
Posted in vblog | Comments closed

Cisco Live 2012 – DWDM 101

CWDM vs. DWDM DWDM: Long Haul Typically EDFAs Amplifiers Up to 80 channels Channel spacing 0.4nm Distance Up to 3000km Spectrum 1530nm to 1560nm Intelligent Filter Technology CWDM: Metro Almost never Amplify Up to 8 channels Channel Spacing: 20nm Dista...
Posted in vblog | Comments closed

Modifying VMware Multipathing Policies with EMC’s VSI Path Management Plugin

Here is a handy tool for setting and modifying multipathing policies in VMware when using EMC backend storage.  It supports CLARiiON, VNX, Symm, and VPLEX devices. It also supports both PowerPath and NMP.  The plugin is free to EMC customers with a ...
Posted in vblog | Comments closed

Configure SRM 4 with SQL Express 2005

I found this document very useful when setting up SRM 4 in the lab recently.  The part that really caught my attention was that the sql account needs to have at least “bulkadmin” privileges.  Of course, “sysadmin” will work as...
Posted in vblog | Comments closed

Finding Drive Speeds for CLARiiON Disks Using Powerlink and Navi/Unisphere

Ok, so it’s common knowledge that drive speeds are shown on the front of all EMC disks but what if you don’t have physical access to the array?  I often find myself in this situation and the ability to lookup drive speeds without access to...
Posted in vblog | Comments closed

FAST and FAST Cache: Some Quick Highlights

Edit: A quick response on twitter pointed me to a more current config chart which is now updated.  The newer chart is referenced at emc251589 Have you just upgraded your CX4 to FLARE 30? Are you super excited about using FAST but just don’t know...
Posted in vblog | Comments closed
  • Archives

  • RSS Varrow Youtube