Wednesday, October 27, 2010

Daily PowerCLI Primer - Add an NFS share to all hosts in a cluster.

Add an NFS share named NFS01 to all hosts in a cluster named "My Cluster".

Connect-VIServer MYVISERVER


Get-Cluster "My Cluster"
Get-VMHost
New-Datastore -Nfs -Name NFS01 -NFSHost nfs.anydomain.com -Path NFS01
 
~ Scott March

Tuesday, October 26, 2010

Performance Tuning for Microsoft SQL on a VMware Virtual Machine

One of the support guys from VMware Global Support Services went above and beyond and sent me a bunch of really good articles on tuning SQL in a virtual environment. Some of these articles are general tuning for any VM. All good stuff. I'm paying it forward and sharing the articles with you. .....


Performance Tuning Best Practices
http://www.vmware.com/pdf/vi_performance_tuning.pdf


Page 13 - Virtual Machine Options and Resources
http://www.vmware.com/pdf/vsphere4/r41/vsp_41_vm_admin_guide.pdf


Virtual Machine Performance Problems
http://kb.vmware.com/kb/69


SQL Server Performance
http://www.vmware.com/files/pdf/SQLServerWorkloads.pdf


Microsoft SQL Server and VMware Virtual Infrastructure

http://www.vmware.com/files/pdf/sql_server_virt_bp.pdf


Tips for configuring Microsoft SQL Server in a virtual machine
http://kb.vmware.com/kb/1002951


Best Practices for SQL Server
http://communities.vmware.com/docs/DOC-8964

Thanks Brent for going above and beyond. We all appreciate it.


~ Scott March

Sunday, October 17, 2010

Increasing Throughput Doesn't Always Increase Performance

Here's a really good article on Storage that I found on thesanman.org website :

"A wise man once told me that if there were a major car crash further up the highway, having a faster car would only get me to the accident quicker. Obvious right? Not so it seems when the wisdom of these words is applied to the analogy of the growing number of SAN infrastructures currently upgrading from 4Gbps to 8Gps. ‘Faster means quicker, means better’ is the commonly heard sales pitch used to seduce vulnerable IT Directors who dream of ‘a guaranteed performance improvement that would solve the headache of their ever slowing applications’. "

For the full article please go to: http://www.thesanman.org/

~ Scott March

So What is Cloud Computing?

My definition of Cloud Computing seems to change on a daily basis. Is it the new buzzword or is Cloud Computing going to stay? Don't we already have a cloud? Internal Cloud? External Cloud?  Hmmm? VMworld 2010 was all about the cloud. So let's talk about it a little. Here 's a pitch I found that describes the cloud from a VMware point of view:

http://www.vmware.com/solutions/cloud-computing/























So what is your definition? Are you planning on embracing it?  I'd love to know your thoughts?

~ Scott March