I have followed the steps below to attach a drive to two virtaul machines

vmkfstools -c 500G -d eagerzeroedthick -a lsilogic /vmfs/volumes/*/*/satashare.vmdk

Once that was done, i turned off the vitrual machines and attached the drive:

• Attached it on a sperate scsi controler
• Added it as a independent persistent drive
• Changed the new scsi controler to a virtual device

When i powered on the virtual machines they could all see the disk but they could not share the information on the disk, the machines only saw the information originally put there by themselves.

I have read that i have to edit the following in the config file

scsi1.present = "TRUE" scsi1.sharedBus = "none" scsi1.virtualDev = "lsilogic" scsi1:0.present = "TRUE" scsi1:0.fileName = "D:\Virtual Machines\Shared Disk\SHARED-DISK.vmdk" to the following disk.locking = "FALSE" diskLib.dataCacheMaxSize = "0" #scsi1 data storage scsi1.present = "TRUE" scsi1.virtualDev = "lsilogic" scsi1.sharedbus = "none" scsi1:0.present = "TRUE" scsi1:0.fileName = " D:\Virtual Machines\Shared Disk\SHARED-DISK.vmdk " scsi1:0.mode = "independent-persistent" scsi1:0.shared = "TRUE" scsi1:0.redo = "" Do i have to add the "diskLib.dataCacheMaxSize" line in as we are doing this for sql servers and dont want all the drives to have a 0 cache size. Thanks for the help in advance :)