Archive for May, 2009
vSphere PURPLE screen
Posted on May 21st, 2009 in vSphere | No Comments »
Improve Utilization on ESX Hosts
Posted on May 17th, 2009 in Data Center, Tips, Virtualization | 2 Comments »
As virtualization does help us to consolidate virtual machines into physical servers, we are always looking into a better consolidation ratio and hardware utilization. We may not want to achieve this by hitting to performance issue on the virtual infrastructure. Here is 1 of the way you may consider to improve the utilization on your ESX host.
As my environment, the virtual infrastructure are supporting our global business in Asia Pacific, EMEA and NA time zone. When I tracked back the performance history and found the busy hour for most of the machines will be different. Due to the time zone different, I notice that the hardware utilization on the ESX host are always remain 40 to 50 % all the time.
Slow performance on vCenter 4
Posted on May 12th, 2009 in Virtualization, vCenter, vSphere | 4 Comments »
As vSphere is on the way, many of you may had experienced to test the RC release now. 1 of the thing you may notice is about the performance on vCenter 4 which bundle as part of the vSphere infrastructure in the coming release. I had personally compared the system performance within vCenter 2.5 and 4, and I found the vcenter 4 will require more resource to satisfy the system to run smoothly. The resource require to run the SQL server will not make any big different in this case, but you will notice the tomcat process in the task manager will take up quite a number of resources from your vCenter server.
How To Upload Files Into Datastore
Posted on May 12th, 2009 in Tips, vSphere | No Comments »
A datastore is platform-independent and host-independent and it can reside on the local disk of an VMware ESX/vSphere Server, or they could be on a storage area network (SAN). Therefore, datastores do not change when the virtual machines they contain are moved between hosts. The scope of a datastore is a datacenter; the datastore is uniquely named within the datacenter. They can be accessed by either the VMware Infrastructure Client/vCenter client or by the Web interface.
For some reason, you may need upload some of your ISO, VMDK and etc into your datastores. Here I would like to share how to do it easily.
How to upload files into datastore
1. Login to vCenter
2. Select your VMware host
3. Click “Configuration”
4. Click “Storage”
5. Look at right hand side datastore
6. Right click one of the datastore LUN and click Browse Datastore….
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