Solved

How do I attach multiple shared disks in vm cluster when a disk device ID is limited to 0 an a shared SCSI controller?

Posted on 2008-11-02
3
554 Views
Last Modified: 2012-05-05
While trying to add additional shared disk resource to existing MS cluster in Virtual Server 2005, I noticed that on a shared SCSI controller the only selectable option when adding a disk is ID 0. If the controller already has a disk with ID0 (as in quorum in this example), it not possible to add any further shared disks to the shared bus.
e.g. The virtual machine has two SCSI adapters. The Shared controller is attached as Virtual SCSI adapter 2 (SCSI adapter ID: 7). On the Virtual Hard Disk Properties page, clicking the attachment drop down only lists ID 0 for SCSI 1. The non shared adapter has ID 0 through 7 available for selection.
0
Comment
Question by:MyChris
3 Comments
 

Author Comment

by:MyChris
ID: 22860974
I have since added multiple SCSI controllers, one for each of the shared disks. Why the restriction - is it specific to MVS? Normal practise in a physical configuration? Do other virtualisation packages have the same restriction?
0
 
LVL 13

Accepted Solution

by:
brent_caskey earned 500 total points
ID: 22862678
Hello MyChris,

To my knowledge, this is just a Virtual Server quirck. This is not normal practice with hardware SCSI clusters. I have worked on many SCSI clusters where you have one controller in each server and multiple volumes / virtual disks on the array.

Here is the walkthrough on how to create a guest cluster in Virtual Server 2005 in case you run accross anything else: http://www.microsoft.com/technet/prodtechnol/virtualserver/deploy/cvs2005.mspx (Although, this exact issue is not covered).

Regards,
brent_caskey
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

The business world is becoming increasingly integrated with tech. It’s not just for a select few anymore — but what about if you have a small business? It may be easier than you think to integrate technology into your small business, and it’s likely…
Many businesses neglect disaster recovery and treat it as an after-thought. I can tell you first hand that data will be lost, hard drives die, servers will be hacked, and careless (or malicious) employees can ruin your data.
This video teaches viewers how to encrypt an external drive that requires a password to read and edit the drive. All tasks are done in Disk Utility. Plug in the external drive you wish to encrypt: Make sure all previous data on the drive has been …
This Micro Tutorial will teach you how to reformat your flash drive. Sometimes your flash drive may have issues carrying files so this will completely restore it to manufacturing settings. Make sure to backup all files before reformatting. This w…

839 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