New Document "VMware Virtual Machine File System: Technical Overview ..."

[WintelIBMBE]

Hi,

Is it just me or is this document creating a lot of confusion?

http://www.vmware.com/vmtn/resources/996

On Page 12 :

VMware VMotion, VMware DRS, and VMware HA are all supported in both RDM physical and virtual compatibility modes.

I always thought Vmotion is not possible if a VM has an RDM in physical compatibility mode. A Vmotion however is possible on VM's with RDM's in virtual compatibility mode.

On page 15 :

Table : Summary of MSCS Shared Storage

Clustering across boxes possible with Non-passthrough RDM's (virtual compatibility mode)

I always thought that you should configure Passthrough RDM's (Physical compatibility mode) for that ?

On Page 16 :

Suggestions for Disk Spanning

Shutdown all VM's residing on a VMFS that you want to extend ...

I always have extended my datastores online, without any issues, isn’t this scaring people, so they introduce more downtime then necessary?

Kind regards,

Koen

[GBromage]

On Page 16 :

Suggestions for Disk Spanning

Shutdown all VM's residing on a VMFS that you want to

extend ...

I always have extended my datastores online, without

any issues, isn’t this scaring people, so they

introduce more downtime then necessary?

It depends how often the situation comes up.

Personally, I'm so paranoid about corrupting the VMDK files, that I'd be safe and power them up (and have a current backup).