rdm scsi controller

[usr345]

Hello,

Does adding a rdm disk for the first time on a vm require adding seperate scsi controller. If yes is there a reason for that.

Thanks

[a_p_ · Accepted solution]

Afaik a separate virtual SCSI controller is only required for e.g. shared disks in an MSCS setup.

André

[vGuy]

No, it's not required to add additional SCSI controller for the RDM.

Unless as mentioned by Andre you wish to add a cluster/shared virtual disk.

[UmeshAhuja]

Hi,

Adding a scsi device is like you are doing is used to map a generic device, like  a tape drive, to a VM via pass-through.

To add a new virtual SCSI controller for Vdisks (or RDM), just add a new  disk, and when given the opportunity to select the SCSI id for the disk, scroll  down in the list until you get SCSI1:0  (you'll see all ids on controller 0  first: SCSI 0:0, SCSI 0:1,.... and so on until 15, and then it will continue  with SCSI 1:0....)

This wil add a new controller 1, and put the disk on id0

For more informatory process go with the below link

http://www.vmadmin.co.uk/vmware/35-esxserver/58-rdmvm