Configuring AWS Auto Scaling for WordPress

In previous posts, I covered the basics of Amazon Web Services, Preparing AWS Services to support our sample WordPress workload, and Installing WordPress in AWS with ElastiCache and S3/Glacier backups.  In this post we’ll look at how to configure an AWS Auto Scaling group of WordPress servers that respond dynamically to the load placed on them by creating new EC2 instances on demand, or spinning down unnecessary instances during low demand to save on operational expenses.  Auto Scaling uses AWS Cloud Watch to monitor AWS components and responds to alarm metrics (CPU utilization, number of … [Read more...]

Cleanup Archived Event Logs with PowerShell

I ran into an environment today where a group policy object (GPO) was configured at the domain level that set security logs to be archived to the C: drive when full.  The need for the policy abated, then the policy was removed.  But, the setting to archive event logs on each server and workstation in the domain persisted.  Hard drives - physical and virtual - began to fill up, taking down critical services.  The fix was easy, but I thought I would share for others who might run into the same issue. First, I set a group policy to configure appropriately sized logs and retention policies on … [Read more...]

VMware vSphere Resource Pools – Resource Allocation Revisited

I have found VMware vSphere Resource Pools to be an often misunderstood element, and incorrectly implemented by even seasoned VMware administrators.  I recently found an example of an incorrect implementation of Resource Pools being used to organize VM's in vCenter's Hosts and Clusters view, without considering the potential performance impact of this configuration.  I thought that I might try to explain the resource pool piece a bit better, particularly around Shares. First, a few technical points to remember: Resource Pools can only be used when VMware Distributed Resource Scheduler … [Read more...]

Free SAN Monitor for DS3300, MD3000i and others

One of my most popular posts to date had been IBM DS3300 Write Performance Problem Solved.  I am pleased to have upgrade my internal environment to an EMC Clariion CX4 array, but still have customers using the DS3300 and the MD3000i from Dell.  For that reason, I keep an eye out for news on these arrays.  You'll recall that these arrays are based on the same LSI kit.  Truth be told, properly designed and configured, these arrays are a technically proficient and cost efficient solution for SMB's looking to get their VMware environments going. While reviewing my email today I found an email … [Read more...]

Virtualization Bookmarks for August 28th

Here are some bookmarks for resources that I have recently referenced: vCenter 4 and ESX 4 Now Use 10 Year Default SSL Certificate | VM /ETC - Rich Brambly has some guidance on installing a new SSL certificate on vCenter, with very useful links in his post to official VMware documentation and KB's on the subject. VMware vSphere Client on Microsoft Windows 7! | Virtual Lifestyle - Heiko Verlande has found a way to run the VMware vSphere Client on Windows 7. Virtu-Al » PowerCLI: Daily Report V2 - Version two of a handy PowerShell based VMware Environment Daily Report from VMware vExpert … [Read more...]