Comprehensive data protection for all workloads
Post Reply
deduplicat3d
Expert
Posts: 100
Liked: 11 times
Joined: Nov 04, 2011 8:21 pm
Full Name: Corey
Contact:

iSCSI Backup Repository

Post by deduplicat3d » Jan 02, 2012 8:32 am

I currently have a backup job that backs up from two different vcenters. The veeam server resides on vcenter 1 and I have a proxy agent on vcenter 2. The job backs up to a mounted iSCSI volume (windows iscsi initiator) on the veeam server (vcenter 1). I have noticed that the backups for machines running on vcenter 2 have a bottleneck of 99% for "Target" and "Network" and am assuming this is due to the traffic first being sent to the veeam server and then to the actual device (two hops). Is there anyway for the proxy agent to send the traffic directly to the target?

Thanks
Corey

Gostev
SVP, Product Management
Posts: 24416
Liked: 3402 times
Joined: Jan 01, 2006 1:01 am
Location: Baar, Switzerland
Contact:

Re: iSCSI Backup Repository

Post by Gostev » Jan 02, 2012 2:28 pm

Your real bottleneck is the target storage speed. Don't pay attention to the network showing 99% - this is a bug in the bottleneck analysis logic. Network counter shows incorrect reading when target is unable to accept data due to being overloaded. This will be fixed in the future updates. Thanks.

deduplicat3d
Expert
Posts: 100
Liked: 11 times
Joined: Nov 04, 2011 8:21 pm
Full Name: Corey
Contact:

Re: iSCSI Backup Repository

Post by deduplicat3d » Jan 02, 2012 5:24 pm

How come the target does not bottleneck when it backs up from the first vcenter? i.e. when the iscsi target only has one hop.

Gostev
SVP, Product Management
Posts: 24416
Liked: 3402 times
Joined: Jan 01, 2006 1:01 am
Location: Baar, Switzerland
Contact:

Re: iSCSI Backup Repository

Post by Gostev » Jan 02, 2012 6:40 pm

Well, to comment anything on the performance of the 1st job, I really need to see its bottleneck stats as well... but likely either because of slower source storage throughtput, or due to the different job settings.

Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 22 guests