Link to home
Start Free TrialLog in
Avatar of bluedan
bluedanFlag for United States of America

asked on

Dynamically Expanding Virtual Hard Disk Option for Vmware Esxi

Hi Expert:
Can you tell me if VMware EXSI has a "Dynamically Expanding Virtual Hard Disk" function likes in Microsoft Virtual PC or Virtual Server? Or any other similar feature?

I need to create several testing Database servers in VMware ESXI and it required me to allocation all the space upfront. Unlike the Virtual Server, all I need to use is Dynamically Expanding HD function. Im just start to use ESXI moving from MS Virtual Server 2005 R2.

Thank you in advance for your help.
Avatar of Naga Bhanu Kiran Kota
Naga Bhanu Kiran Kota
Flag of India image

Hi,

The default is to allocate the disk space for the disks, otherwise you can specify the disk size and uncheck the option

"allocate disk space now"

the VMDK files work the same way as it works in MS virtual server

bhanu
Avatar of bluedan

ASKER

Hi Bhanu, I did not see the option when creating a new HD. As soon as I added a new HD, it will take space from the datastore, even if I have not yet put anything to that new HD. Can you provide me more information?? In MS Virtual server, the VHD will just grow based on the data I put there.

Thanks!
Hi,

how are you creating the VMs are you using the VI client or are you using remote command line functions to create the VMs.

I will post the screen shots on how to create the VMs with dynamically growing disks.

bhanu
Hi,

my apologies,  I misinterpreted your post. I was taking the question more on the front where the disk space is allocated for the VMs.

The differencing disk method in VMware terms is referred to as creating link clones and this is possible only on VMware Server and VMWare workstation.

The same feature is not available in ESX.

bhanu
SOLUTION
Avatar of Naga Bhanu Kiran Kota
Naga Bhanu Kiran Kota
Flag of India image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of bluedan

ASKER

Hi bhanu:

Some background info.

I'm currently using VMware ESXi Free version. I connect to ESXI via VI client.

Thank you for point out the differencing disk method. Its good to know that it will not work on ESXI. But, I'm interested in "dynamically expanding disks" or "dynamically growing disks" function. Just to carify you can refer to tech note below?

About dynamically expanding disks in MS Virtual Server 2005
http://technet.microsoft.com/en-us/library/cc708315.aspx 

I have tried to create new VM or adding Virtual Disk to existing VM. However, in both case, it will just allocated the full disk size upfront to the datastore I picked. I'm not sure if its support in the free version of ESXi.

Thanks,

hi bluedan,

The dynamically expanding disks & dynamically growing disks have only a different name in vmware. I did work a lot on MS virtual server, rather i started working on it first then moved to VMware.

As updated when you create a VM the size is reduced from the VM datastore but if you check the size of the data on the Storage drive you will see that it has not created a file of that size.

This is not  a limitation in ESXi but is also in ESX 3.xxx versions.

bhanu
Avatar of bluedan

ASKER

Hi bhanu:

Thank you for the speedy response. Actually, it also created the virtual Disk file of that size when I went to the Storage drive. I tested on 3 times and it all did the same thing. BTW, I'm on the lastest version - ESXI 3.5 Update 3.

Would you kindly provde me a step by step or screenshots on how to get the dynamically expanding disks working in ESXI just like it would in Virtual Server 2005.

Thank you again!
ASKER CERTIFIED SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial