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Is virtual compatibility mode supported for clustered non-pass-through raw device mapping in multihost clustering?
The VMware ESX Server 2.5 Administration Guide incorrectly states that, under certain circumstances, virtual compatibility mode for clustered non-pass-through raw device mapping (RDM) in multihost clustering is supported. This is not correct.
The following table describes supported configurations for the non-clustered and clustered disks for Microsoft Clustering Software with ESX Server 2.5.x.
|
Area |
Component |
Single-Host Clustering |
Multihost Clustering |
|---|---|---|---|
|
Non-clustered disks |
Virtual machine and swap (paging) file |
• Must be on local storage, not on a SAN
• Must be a non-clustered disk | |
|
Non-clustered virtual disks (.vmdk) |
• Must reside on a public VMFS volume
• Must use VMFS label notation
• Virtual adapter must be set to shared mode = none | ||
|
Non-clustered raw device (disk) mapping |
• Revision must be ESX Server 2.5.x
• Must reside on a public VMFS volume
• Must use VMFS label notation
• Disk must be in persistent mode
• DeviceType must be scsi-nonpassthru-rdm or scsi-passthru-rdm | ||
|
Non-clustered raw device (disk) |
Use raw device mapping instead, if using ESX Server 2.5.x | ||
|
Clustered disks |
Clustered virtual disks (.vmdk) |
• Must use VMFS label notation
• Virtual adapter must be in
shared mode = virtual • The LUN must host only one VMFS file system
• The VMFS volume must be dedicated to the cluster
• Must reside on a public VMFS volume |
• Must have been created with
vmkfstools -z • Must use the vmhba:: notation, not the VMFS label notation
• Virtual adapter must be set to
shared mode = physical • Must reside on its own physical LUN
• The LUN must host only one VMFS file system
• The shared virtual disk must be the only file on this VMFS volume
• The VMFS volume must be in shared mode
• The VMFS volume must have only one physical extent |
|
Clustered, non-pass-through raw device mapping |
• Revision must be ESX Server 2.5.x
• Must reside on a public VMFS volume
• Must use VMFS label notation
• Disk must be in persistent mode
• DeviceType must be
scsi-nonpassthru-rdm • Virtual adapter must be set to shared mode = virtual |
Not supported | |