Hi!
I have a esxi5.5 2403361 with i7 cpu, 32gb mem, adaptec 5805 with 6x2TB in raid 10 and Intel 82546EB 2 port 1Gb network card.
The host is almost idle.
I recently purchased a NAS for backups, which I connect via iSCSI
The backup speed is quite low, ~30MB/s
I tried the following:
Create new iscsi LUN on nas and map it to Win7 VM inside esxi (let's say, it's G:-drive).
- try cipher /W:G: , ~30MB/s
Disconnected the LUN and mapped it to a windows desktop machine
- try cipher /W:G: , ~110MB/s
Create a new virtual hard disk for a VM, and connect it
- try cipher /W:G: ~440MB/s
Open datastore with winscp from windows desktop
- copy a random OS image, ~30MB/s
So my conclusion if, that there is something slowing down the esxi-network. Is there anything more I could do to troubleshoot, or even fix the problem?
Anyone?
bump
You can refer one of the KB - VMware Knowledge Base
Plus make sure you are using the latest NIC Driver -Firmware on the server - esxcli network nic get -n <vmnix>
You can run iperf tool across the virtual machine on the same host and run iperf tool across the virtual machine on 2 different host to check for any network issues on the esxi host .
Also check the below and make sure there are no errors/drops observed on the vmnic on the host - esxcli network port stats get -n <vmnicx>
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Regards,
UJ