Vmware backup bottle neck

I have loaded veeam in my vm environment and hooked up a drobo san on the same switch.  Connecting via iscsi i am only getting 2mb data transfer and fails every time.  What am I doing wrong.  The error tells me that the network is the bottle neck but I think iscsi is the only way to hook up the drobo.
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Neil RussellTechnical Development LeadCommented:
How many network ports on the drobo SAN? How is it connected? Is it on a seperate private network for it and the server? Or on a seperate VLAN? Or just on a switch with everything else?
HBMIAuthor Commented:
Thier are two network ports on the drobo however I am only using one of the ports.  It is on a 24 port hp procurve switch.  We use a  dell equallogics SAN for our datastores and that is on its own vlan then two of the ports on the server is in the same vlan of the datastors and the other two are ports on the server are are not in the same vlan as they get ip address from our dhcp server.
Neil RussellTechnical Development LeadCommented:
Is the drobo alos presented to your vm Host as a datastore or are you using windows iscsi to connect to it? Why not just put it in the same vlan as your Dell SAN and then allocate space to it on a datastore and use it that way?

A clear consice explination of how exactly your all connected would help
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Aaron TomoskyDirector of Solutions ConsultingCommented:
What is the model of the drobo?
HBMIAuthor Commented:
Here is an attachment of my vmware environment.
HBMIAuthor Commented:
My drobo is a B800i.  I was hoping to hook it up to the server via USB but could not get the disk to initialize.
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
It will be mich slower if you use USB.

Have you tried enabling Jumbo Frames?
HBMIAuthor Commented:
I think jumbo frames is enabled on the switch in vlan 15. Maybe when I get back to work on Monday I will put the drobo in vlan 15.
Aaron TomoskyDirector of Solutions ConsultingCommented:
I have a drobo pro on iscsi getting 50MBps. I Installed the drobo software in the windows 7 vm, connected it over USB, put in a static for iscsi, turned off the drobo, plugged it into my LAN. Drobo software found it as gave it a drive letter. My backup software hits it no problem.
Yours is a step up, The pro can only be an iscsi target for one box.

Can you connect to it without veem and try some file copies? Could be latency problems...
HBMIAuthor Commented:
I put my Drobo in vlan 15 but did make any difference in speed.  I then did a backup right to the veeam c: and it was 45mbs-50mbs.  I cut and copied that folder to my SAN drive which shows up like another drive in veeam and it took about 10 minutes to copy the 15mg of data.  So really it took about the same time to back up one of my vm's as it did to copy to the SAN.  I guess this just ruled out the network but I am still unsure why it backs up to the SAN slow.
HBMIAuthor Commented:
Ended up being a setting in Veeam.  Under backup infrastructure and backup repositories I found a parameter called "Limit combined data ingestion rate to" it was set to 1mb and I bumped it up to 50mb.

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HBMIAuthor Commented:
Ended up being a setting in Veeam.  Under backup infrastructure and backup repositories I found a parameter called "Limit combined data ingestion rate to" it was set to 1mb and I bumped it up to 50mb.
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