Increasing the cloning performance

[patanassov]

There have been many complaints about transfer rate degradation in Converter 5.0.

Converter uses NFC (a proprietary VMware protocol) for cloning to managed destination. Security has been enhanced in Converter 5.0 by encrypting the data transfer. Unfortunately this has caused a more severe performance degradation than expected.
Switching off SSL encryption is a way to work around this issue. Here is how it is done:

1. Open the converter-worker.xml configuration file. It is located in "%ALLUSERSPROFILE%\VMware\VMware vCenter Converter Standalone" folder for Windows Vista or newer or in "%ALLUSERSPROFILE%\Application Data\VMware\VMware vCenter Converter Standalone" for older Windows versions.
2. Set the key Config/nfc/useSsl to false and save the configuration file.
3. Restart "VMware vCenter Converter Standalone Worker" service.

I.e. it should look like:

    ...
    <nfc>
       <readTimeoutMs>120000</readTimeoutMs>
       <useSsl>false</useSsl>
    ...

[patanassov]

You need to be administrator to do that

[skywalkr]

THANK YOU SO MUCH!  This made a world of difference! 

Cheers.

[DumpCheck]

5.5.1 also still sets this to true by default and upgrades reset to true as well...

[Fluxblocker]

I wonder if it would help to set the switch ports to the highest speed (and also on the NIC) instead of using auto-negotiate.

[skywalkr]

Hmmm. Seems it would matter only if the NIC / ports are not properly locking onto the highest rated speeds / feeds.  100 is good for running at 1/2 duplex due to a long standing issue w/ them. My rule has been ports at 100 should be set to 100/full unless the ports or NICS do not tolerate it.  I have seen NICs on certain things absolutely not tolerate being told 100/full b/c the NIC wants to set it so the ports side HAD to be auto/auto.  Weird I know but a fact, good it's rare. For 1000 and above, auto/auto should work unless there's a card or line issue.   My .02.  Cheers.

[Cloomger]

Help me pls!!! I nee VMware vCenter Converter BootCD

[ramonramirezg]

This works just perfectly!

[Neb85]

Thank you Mike_MT,

After disabling SSL it was still slow, and I noticed that it said it was doing file-level cloning for the volume i wanted to resize.

Creating a new job and telling it to maintain the size did the trick, it now did block-level cloning and went from ~150 KB/s to ~10 MB/s,

[dataserviceit]

hi, i have made it, but have no increase velocity

my pc is i7-4790,  w8.1, converter 553(last version)

restarted a service, but nothing, any suggestion?

tnx

[dataserviceit]

have connect the esx server at the gibabit port and now is ok, tnx

[oneout72]

Between making this change and switching to maximum data connections per task, I was able to increase the transfer rate from 5.23 MB/s to 70.95 MB/s.  Thanks for the information.

[averling2012]

Hello I am wondering am I correct in assuming that this is specifically in regards to the Converter Version 5.0 and not in regards to the ESXi platform Versions

If you could please let me know it would be greatly appreciated

[patanassov]

You are correct, it is about Converter versions 5.0 and newer.

[Servior]

Just a short question on this. Will restarting the service stop active jobs, or does it continue after a the restart?

[POCEH]

Restart will cancel all active jobs, no resume after restarting.

HTH

[PeteLong]

I got considerable better throughput!

VMware Converter Slow!

Regards

Pete