Solved

How do I expand a virtual disk while fault tolerance is running in vmware 4.1

Posted on 2011-02-16
6
2,900 Views
Last Modified: 2012-05-11
I am trying to add 10% hard drive space to a virtual server using server 2003. The virtual server is running fault tolerance. The initial error I get is: Description: Error message on sever1 on x.x.x.x in domain: Failed to extednd disk scsi0:1.
Error Stack:
>Failed to extend disk scsi0:1
>Hot-extend is currently supported only for VMFS flat virtual disks without snapshots opened in persistent mode.

So.. I turned fault tolerence off and tried extending the drive again and the error states "A general system error occured: unkown error" Since the web server is live I want to reboot it as a last resort.
0
Comment
Question by:JRome225
  • 3
  • 2
6 Comments
 
LVL 119
ID: 34912477
Do you have any snapshots?
0
 
LVL 119
ID: 34912482
If you have snapshots, you'll have to delete them all before extending the disk.

or use VMware Converter to convert and migrate to a new virtual machine, and insrease the disk size of the destination Virtual Machine disk.
0
 
LVL 40

Expert Comment

by:coolsport00
ID: 34912573
As mentioned above, you need to 'commit' your snaps first. The only way to do a 'live' disk modification is via vCenter Converter or Converter Standalone. The other methods require the VM to be powered down (power down, edit VM settings, modify disk size, use tool to expand the Windows volume). See KB:
http://kb.vmware.com/kb/1004047, and
http://kb.vmware.com/kb/1004071
Is this a system volume or 2nd'ary drive/volume?

~coolsport00
0
Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

 
LVL 40

Expert Comment

by:coolsport00
ID: 34912705
If the volume you need to expand/increase is not the system volume, you can detach it from your VM (Edit Settings -> remove the virtual disk in question but *DO NOT DELETE FROM DISK*). On another VM, go into its Settings and 'Add a hard disk'. Select to use an existing virtual disk and browse to the datastore and within the VM folder that has this data disk. This 2nd VM needs to have access to the same datastore the orig VM is on. Select the appropriate vmdk/virtual disk you want to expand (hopefully it's different in size than the system volume). Once added, power down this other VM with the newly added disk. Increase the size of the disk, then power on the VM and use diskpart to increase the volume within Windows. Once increased, remove this vmdk/virtual disk from the VM the same way you removed it from the orig VM. (again, *DO NOT DELETE FROM DISK*) Go back into the orig VM's Settings and re-add this (existing) virtual disk (should obviously be in the same folder as the rest of its files...so just browse the current datastore).
Diskpart help - http://support.microsoft.com/kb/325590

This can all be done with the orig VM still live, but again...only if this is not the system volume.

~coolsport00
0
 
LVL 1

Author Comment

by:JRome225
ID: 34921768
The disk is a 2nd'ary dynamic drive from a Clarion SAN. It is running the guest OS 2003...It stores our websites. If I detach and follow the instructions above will it shut down our websites?
0
 
LVL 40

Accepted Solution

by:
coolsport00 earned 500 total points
ID: 34922148
If your websites are on the 2nd'ary/data disk...yes. The only other real way to do it 'live' is by using Converter within vCenter (if you have it) or Converter Standalone, as mentioned above, and modify the data disk to the size you want. The orig VM is 'live' while the conversion runs. Once the VM is converted, you take down the orig and bring up the (new) Converted one. Regardless, there is no way to do this with absolutely no downtime...only minimal downtime.
Here's Converter Standalone download if you need it:
https://www.vmware.com/tryvmware/?p=converter&ie=UTF-8&rlz=1T4GGLL_enUS371US371&q=vcenter%20converter%20standalone

~coolsport00
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Adding LUN's or datastores in VMware 4 63
Shrink the VMDK with limited access to ESXIHost 4 59
cannot rename datastore 3 48
Workspace One/ VDIM/ Airwatch 6 22
When rebooting a vCenters 6.0 and try to connect using vSphere Client we get this issue "Invalid URL: The hostname could not parsed." When we get this error we need to do some changes in the vCenter advanced settings to fix the issue.
This article outlines why you need to choose a backup solution that protects your entire environment – including your VMware ESXi and Microsoft Hyper-V virtualization hosts – not just your virtual machines.
Teach the user how to join ESXi hosts to Active Directory domains Open vSphere Client: Join ESXi host to AD domain: Verify ESXi computer account in AD: Configure permissions for domain user in ESXi: Test domain user login to ESXi host:
In this video tutorial I show you the main steps to install and configure  a VMware ESXi6.0 server. The video has my comments as text on the screen and you can pause anytime when needed. Hope this will be helpful. Verify that your hardware and BIO…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question