How to setup VMware 3.5 host and Dell Powervault MD3000 iSCSI Array Virtual Disk Configuration?

Do VMs need to  be alone in their own Virual disk.Can I create just one 1.5 TB ESX VMFS Disk  on the MD3000, then use VMware converter to import 3 Physical servers to 3 VMs in the one 1.5 VMFS disk ? The size of the 3 VMs  is 1 VM 75GB, 1 VM 50GB and 1VM  450GB, Can I create backup VMs in the same 1.5 TB ESX VMFS Disk ?
cap7Asked:
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65tdRetiredCommented:
Yes one can create one large vmfs disk and then import the vm's.  
When you say backup do mean snapshots or clones of the machines?  
Are they being backed up now?
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cap7Author Commented:
I was interested in both.
Sense I am limited in space. What is the best way to have a current ready to restore a VM if something very bad happens to the original VM ?
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65tdRetiredCommented:
A off server backup application.
Snapshot only takes one back to point in time restore.
A clone or template is useful for build like servers.
We use VCB (Vmware Consolidated Backup) with Netbackup which takes a snap of the vm and backups it up to tape both files and and an image.  More infrastructure required.

Maybe worth reviewing this doc from vmware:
http://www.vmware.com/pdf/vi3_35/esx_3/r35u2/vi3_35_25_u2_vm_backup.pdf
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aldanchCommented:
The type of backup you would be doing depends on the licensing you have for your VMware infrastructure. Which platform are you running your ESX servers on - ESX (free), VI3 Foundation, Standard, or Enterprise? VCB is part of Foundation and beyond licenses, so you can use that plus your backup software (may need additional licenses to enable this) or another 3rd party solution such as EsXpress (http://www.esxpress.com/) or Vizioncore (http://www.vizioncore.com/vRangerPro.html), etc that that uses VCB to initiate your file level and image level backups.

If you're only using the free version of ESXi or ESX, then you can simply download the VMs (in VI client, highlight the ESX server that stores your VMs, click on the Summary tab, right click the datastore on the right pane, click Browse..., right click your VM's folder, click Download... and choose your backup location (external hard drive connected to the PC you're using VI client.

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cap7Author Commented:
I 'm using the standard ESX 3.5 HA Accelleration Kit
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aldanchCommented:
Since you have the HA kit, then your options are

65td's suggestion of VCB. Check your backup software vendor if they have a license for VM backups or look to others like EsXpress or Vizioncore's vRanger. This requires another Windows server (can be a Virtual Machine or another physical one with the VCB software installed) and another storage location.

Do VMs need to  be alone in their own Virual disk.

No. All your VMs can reside on a single VMFS volume (Max size = 2TB, Block Size = 8MB)

Can I create just one 1.5 TB ESX VMFS Disk  on the MD3000, then use VMware converter to import 3 Physical servers to 3 VMs in the one 1.5 VMFS disk ?

Yes. Make sure to create your VMFS volume with a block size of 8MB to support up to 2TB.

The size of the 3 VMs  is 1 VM 75GB, 1 VM 50GB and 1VM  450GB, Can I create backup VMs in the same 1.5 TB ESX VMFS Disk ?

Yes. You can create snapshots, clone them, or use VCB (optionally with 3rd party software) to back them up to another storage location. VCB allows you to do image and file level backups without having to buy additional backup agents, although since you're converting physical servers to VMs, you don't have to worry about backup agents for file level backups with your existing backup software.
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