Slow Data Copy Speed Between VMs

Created: Mar 29, 2016 19:34:03Latest reply: Mar 30, 2016 09:34:45 1172 1 0 0 0

The service system server was deployed on VM A. When a user accessed the web page of VM A using a browser from VM B and uploaded data to VM A, the data upload speed was slow.

When a user copied data directly from VM A to VM B, the data copy speed was 7 MB/s. However, in normal conditions, data copy speed between VMs in the same local area network (LAN) can be dozens of MB/s.

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^2#

love_yan Created Mar 30, 2016 09:34:45

Upgrade PV driver version of the VMs to that of the host Domain 0 using either of the following methods:
When a small number of VMs are running on the host, manually install the PV drivers on the VMs. For details, see Operation and Maintenance > Virtual Machine Management > Tools Management > Uninstalling the Tools in the FusionCompute Product Documentation.

When a large number of VMs are running on the host, use the upgrade tool to upgrade the VM PV drivers. For details, see the FusionCompute V100R003C00SPC300 Upgrade Guide at
http://support.huawei.com/enterprise/docinforeader.action?contentId=DOC1000028007&idPath=7919749|7919788|9856606|8576912

Note:
The VM PV driver upgrade takes effect after the VMs are restarted. Therefore, inform users of the service interruption before perform the upgrade.

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