We have a VMWARE ESX Server 3.5 up and running.
Because of budget restrictions we only have local SAS harddisks.
The SAS harddisks are configured as one RAID5 array.
We now extended the RAID5 array by adding two more physical disks.
Now we also would like to extend the VMFS datastore.
When I choose "Add/Extend" I get the following warning:
"The current disk layout will be destroyed. All file systems and data will be lost permanently." (see screenshot attached)
Before I proceed I would like to answer the following question:
- Will all our VMDK virtual machine images be destroyed?
- Isn't it possible to just extend the datastore without loosing all data?
- What is the fastest way to backup all our VMDKs? (if required)
- Any other thougts an this issue?
One more annotation: The ESX server itself is installed on another RAID1 volume.
This means, that the RAID5 voulme is "only" used for VMDKs.
Thanks for your advise!