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LucianoPatrão

Moving VM between Storage very Slow

Hi

When i move a virtual machine between storage(LUNs) is very, very slow.

Example: One Virtual machine with 3 hard disks. The VM configuration is in the local storage, the System Operation Disk is in another storage(LUN), and the third and data disk in a third Storage(LUN).

When i moved from the VMware 1 to the Vmware 2(with HA and DRS enable), it takes 3 hours to complete.

My question is, is this normal? Take so long to move(or clone) from one VMWare(and storage) to another VMware(and storage)?

Thank you

Jail

Luciano Patrão

VCP-DCV, VCAP-DCV Design 2023, VCP-Cloud 2023
vExpert vSAN, NSX, Cloud Provider, Veeam Vanguard
Solutions Architect - Tech Lead for VMware / Virtual Backups

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Blog: https://www.provirtualzone.com | Twitter: @Luciano_PT
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AustinPowers
Enthusiast
Enthusiast

Do you mean moving a VM's datastores from one LUN to another? If so, it is entirely dependent on the size of the datastores. If you are moving hundreds of GB, then it can take a while.

If you are talking about moving a VM from one host to another, it should only take a few minutes to move the local files; nothing else should have to move if the VMs are in the same HA group.

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LucianoPatrão

Hi AustinPowers

Thank for your reply

My test was moving a Virtual Machine and all is hard disks from one Vmware to another VMware.

But since i have 2 storage(LUN) for hitch VMware.

Example:

VMware Server 1 use LUN1 and LUN2 to store all Virtual Machines and Hard Disk

VMware Server 3 use LUN3 and LUN4 to store all Virtual Machines and Hard Disk Data Files.

Since when i move one VM from one VMware to another, it also change from LUN1 or LUN2 to LUN3 and LUN4

The amount of Gb depends on the Hard Disk. But is something like 40Gb for hitch Hard Disk.

So in my test i moved the VM and 3 Hard Disk(storage) that have about 35Gb30Gb50Gb = 115Gb and take about 3/4 hours

Is it normal?

Thank You

Jail

Luciano Patrão

VCP-DCV, VCAP-DCV Design 2023, VCP-Cloud 2023
vExpert vSAN, NSX, Cloud Provider, Veeam Vanguard
Solutions Architect - Tech Lead for VMware / Virtual Backups

________________________________
If helpful Please award points
Thank You
Blog: https://www.provirtualzone.com | Twitter: @Luciano_PT
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christianZ
Champion
Champion

As above - by cold migration you should see e.g. 30MB/sek, vmotion runs not more as few minutes.

What storage here?

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LucianoPatrão

Hi

Storage:

Storage Solution Dell-EMC CX3-20 FC4 SPE

  • 2xSPE to DAE Cable

  • 2x2M Optical Cable SPE to DAE

  • 15 x 300Gb FC2 HD 10k EMC

Its better to do this kind off move/clone with vmotion?

Jail

Luciano Patrão

VCP-DCV, VCAP-DCV Design 2023, VCP-Cloud 2023
vExpert vSAN, NSX, Cloud Provider, Veeam Vanguard
Solutions Architect - Tech Lead for VMware / Virtual Backups

________________________________
If helpful Please award points
Thank You
Blog: https://www.provirtualzone.com | Twitter: @Luciano_PT
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AustinPowers
Enthusiast
Enthusiast

That is about 2.5GB/min. That's probably a reasonable throughput rate, but there are a lot of things that affect the speed you get. Are all components GB speed from source to target? What else is on the subnet that may be impacting? Do you have multiple physical NICs bonded to widen the pipe? Are other VMs on the hosts using a lot of resources and slowing the move down?

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christianZ
Champion
Champion

The performance is ok for me,

vmotion won't move your vm's files - only by running vms, moves only ram.

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LucianoPatrão

Hi

I have only one VM at this point. And all NIC are GB and the rest is FC

I have restarted the Virtual Center, and both VMware

On start i have this error on both VMware server

0:00:01:54:261 CPU4:1046) LUN VMHBA0:0:0:1 May be snapshot: Disabling Acess: See resignaturing solution in san guide

Are the LUN with a conflict between the VMware servers?

I have created a RAID 5 Group(with hot spare) with 5 disks, and inside i created 2 LUN. One for the VMware 1 and other for VMware 2. This is LUNs for VM Operations System.

I have created also a RAID 5 Group(with hot spare) with the rest of the disks, and inside i created 2 LUN. One for the VMware 1 and other for VMware 2. This is LUNs for VM Hard Disk Data

Is this the problem? Must i create a RAID(LUN) only for one VMware Server? And do not mix together the LUN between the VMware Servers?

Thank You for your support

Jail

Luciano Patrão

VCP-DCV, VCAP-DCV Design 2023, VCP-Cloud 2023
vExpert vSAN, NSX, Cloud Provider, Veeam Vanguard
Solutions Architect - Tech Lead for VMware / Virtual Backups

________________________________
If helpful Please award points
Thank You
Blog: https://www.provirtualzone.com | Twitter: @Luciano_PT
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LucianoPatrão

Hi

I have delete all my LUN recreate more LUN and have no problems now

Thank You for your support

Jail

Luciano Patrão

VCP-DCV, VCAP-DCV Design 2023, VCP-Cloud 2023
vExpert vSAN, NSX, Cloud Provider, Veeam Vanguard
Solutions Architect - Tech Lead for VMware / Virtual Backups

________________________________
If helpful Please award points
Thank You
Blog: https://www.provirtualzone.com | Twitter: @Luciano_PT
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HootanRoosta
Contributor
Contributor

I have this same issue. But mine is moving it on the same host from one data store to another. The whole VM size is no more than 300GB and the two data stores are made of SSD raid 5. I was expecting it to be very fast. 300GB at SSD speed *not considering increased speed for having multiple drive) shold have been less than a 10 minute, but after one hour it's only at 2%. Is there a setting that's not properly set for it?

Storage 1: 3 x 8TB SSD in Raid 5 formation

Storage 2: 4 x 2TB SSD in raid 5 Formation

on a H310 Raid controller in Dell PowerEdge R720

 

Any idea?

Thanks,

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scott28tt
VMware Employee
VMware Employee

@HootanRoosta 

Probably best to create your own thread rather than resurrect one from 15 years ago with a now obsolete software version.

 


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