We have two Windows 2012 servers running HyperV guests. The hosts are each running three guests. We are experiencing significant performance hits on the guest machines on one of the hosts, when RR is trying to export the volumes to the core. The other host/guests do not have any problems. We have been working with both Quest and Dell support to try and resolve this - so far no luck.
What we have three Windows 2012 R2 Hyper-V servers running on Host1. These guest servers are all protected by RR. One of the guests is a DC, one is a document imaging system, the other is a terminal server (remote desktop services). When the backup snapshot and subsequent export of data, to the RR core happens on one of these guests, we experience a performance hit on the host and all of the guest servers. The guest become practically unusable and we typically have to stop the export job and stop the service on the guest in order to get things to return to a usable condition. The export of the volumes is very slow when this happens. This behavior does not happen with the other host server or the guests on that host, that are also protected by RR. If we look at the resource monitor in Windows and go to the disk tab - we see high disk queue length activity on the affected host/guests. This symptom does not manifest itself on the other host/guests. They all have the same agent version of RR. At this point we are not sure what this means. We do not know if RR is at fault or if we have a hardware or configuration problem of some sort on host 1.
Has anyone else experienced this?
