migrating vms from 3.51 to esxi5.1

VM ware experts up there,
I am looking for a possible methods to migrate VMs from 3.51 esx local storage to esxi5.1.
What is the best way to do this whithout any down time?
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sara2000Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Without any downtime, your only option is Storage vMotion, and ESXi 3.5 and ESXi 5.1 managed by vCenter 5.1. If you do not have VMware vSphere vCenter Server you could download a 60 day trial to compete this, but you will also need Evaluation Hosts!

if you do not have licensed for Storage vMotion, you will have to accept some downtime.

you are rather limited by options for Zero Downtime, I think you will need to schedule some downtime.....for this activity....

Are the VMs on Shared Storage e.g. SAN or NAS?

0. Storage vMotion - Zero Downtime - if available

Options:- with some downtime....

1. Backup and Restore using your existing Backup and Restore software.

2. Export and Import using vSphere Client

see my EE Article, Step by Step Tutorial Instructions with Screenshots

HOW TO: Backup (Export) and Restore (Import) virtual machines to VMware vSphere Hypervisor 5.1 for FREE

3. VMware vCenter Converter Standalone 5.5
(limited downtime if done correctly using SYNC option!)

see my EE Article, Step by Step Tutorial Instructions with Screenshots

HOW TO:  P2V, V2V for FREE - VMware vCenter Converter Standalone 5.5

HOW TO:  Synchronize changes when completing a P2V or V2V with VMware vCenter Converter Standalone 5.1

HOW TO: Improve the transfer rate of a Physical to Virtual (P2V), Virtual to Virtual Conversion (V2V) using VMware vCenter Converter Standalone 5.0

4. Live Migrate, although ESXi 3.5 maybe too early for this and not compatible

see my EE Article, Step by Step Tutorial Instructions with Screenshots

HOW TO: "Live Migrate" VMware Virtual Machines between ESX/ESXi hosts and/or datastores for FREE without licenses for vMotion or Storage vMotion

5. Remove from current Inventory (limited downtime!)

Power off VM
Remove from ESXi 3.5 current Inventory
Browse SAN datastore and VM Folder
Add to current ESXi 5.1 inventory
Power On.
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sara2000Author Commented:
Thank you for this, We do no have shared storage.
the esxi3.51 has local iscsi raid5 disks.
The new esxi has raid5 directly attached iscsi disk. How vcentre is going to help whithout a shared storage?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
If you have no shared storage, you will have to look at options 1,2 3 or 4.

vCenter is not going to help you without shared storage.
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sara2000Author Commented:
hanccocka,
Are these 1,2,3 or 4 works on 3.51?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
1,2 and 3 will work.
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