Failover Cluster: No disks suitable for cluster disks were found

Question

I did the following:

1) copy 3 images size of wall paper into supporting file folder with standard naming

WP.png, [email protected], [email protected]

override func viewDidLoad() {
    super.viewDidLoad()
    self.view.backgroundColor = UIColor(patternImage: UIImage(named: "WP"))
}

The problems:

1). There are 3 images overlap one another

2) if I did as below, the same problem as (1)

self.view.backgroundColor = UIColor(patternImage: UIImage(named: "WP@2x"))

or

self.view.backgroundColor = UIColor(patternImage: UIImage(named: "[email protected]"))

How to make sure the wp size for the right screen size?

TIA.

Solution 1

This is not possible without using a shared-storage technology like iscsi. Hyper-V does not support shared SCSI, which is what would be needed to have multiple Hyper-V instances to access the same .VHD file.

Solution 2

You need to first understand the requirements for the technology you're trying to implement before attempting to set it up. All high availability VM scenarios require shared storage. That can be a fibre SAN, an iSCSI SAN, or a direct attached SAS enclosure. The VHDs are stored on this shared storage which is accessible by all machines in the cluster. That is the disk that is suitable for cluster uses. So, your next steps involve writing up a proposal, presenting it to the decision makers, and spending some money.

Comments

[Philip]

What kind of SAN are you using? Can the servers see the SAN LUNs that you're going to use for shared storage?

[Philip]

You can't have a cluster without shared storage (which for simplicity sake we'll say requires a SAN). If you're only using disk drives that are in the servers you can not cluster them... If one server failed how would the other access the disks in the failed server.

[Philip]

You can use a SAS SAN, but I wouldn't recommend it unless you know what you're getting into.

[JFB]

wow, thanks. In this case, how could Hyper-V could be as useful as ESXi for example? I know that this would be possible with an ESX server...

[Jason Berg]

@JFB - This would NOT be possilbe with an ESX server

[JFB]

Ok, I thought it was possible using iSCSI with ESX virtual machines.

[Deb]

iSCSI, yes. Just not with VMDK files.

[Ryan Ferretti]

You can cluster VMDK files if the files are attached as SCSI3 devices. SCSI2 (the default) isn't supported by Windows 2008 for clustering. If you want a Windows 2003 cluster the SCSI2 disks will be fine.