ESXi

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  • 1.  v11 vHardware (virtual hardware) causing very slow file transfers

    Posted May 16, 2015 05:47 AM

    Has anyone else noticed this?  With all variables held identical, a v11 VM will have dramatically slower transfer times than a v10 VM.  Here are some details from our testing:

    - On a v11 guest, UNC to a Netapp share is a little slow to respond. Grab a 300MB file from the Netapp share and drag it to the desktop of the guest. The transfer popup would show little or no activity for a few minutes. Most times it would throw an error. Other times, it would transfer at 2-3mb/s.

    - Do the exact same activity on a guest on the same subnet and the transfer was almost instant. We were able to move that 300mb file from the v10 guest to the v11 guest with reasonable speed. Not almost instant like we would expect, but it would finish.

    - We ran the same tests with 4G ISOs and v10 guest were 240mb/s+ while the v11 would not even copy.

    - We tried between different ESXi hosts and within the same host with same results.



  • 2.  RE: v11 vHardware (virtual hardware) causing very slow file transfers

    Posted May 16, 2015 01:47 PM

    Please post the vmware.log file (as an attachment).



  • 3.  RE: v11 vHardware (virtual hardware) causing very slow file transfers

    Posted May 17, 2015 05:00 AM

    I have attached a zip of the recent vmware log files.  I did replace a few names with generic names but the log contents are there.



  • 4.  RE: v11 vHardware (virtual hardware) causing very slow file transfers

    Posted May 17, 2015 02:29 PM

    Is networking performance any better with an e1000 or e1000e virtual NIC?



  • 5.  RE: v11 vHardware (virtual hardware) causing very slow file transfers

    Posted May 17, 2015 04:27 AM

    Than it should some worry for vmware if its really happening I really want to try this in my lab environment.