We have a new Dell PowerEdge T620 running Windows Server 2008R2 with Hyper-V and 3 guests. This server has been in production
for several weeks running just fine. The host seems to be running at reasonable speed. All guests are running slower, in particular, the Terminal Server for 10 users. A business critical app (Access based developed by vendor) is on it. Server
is current with all the Dell drivers, BIOS, and firmware. Antivirus has been removed from the host. Lots of RAM and disk space on the host and allocated to the virtuals. Nothing significant in the event log, Dell Openmanage is not showing any problems. Shadowprotect is the backup software and is running fine. Guests are running the latest Symantec AV with exclusions for this vendor app.
Up until this past week everything has been just fine. When we rebooted the server after the recent Windows patches, the performance of all the guest servers has suffered. But this one critical application is very slow, taking minutes to open (instead of seconds) and get logged into it.
It is a disk intensive application and does not require network access. TS users use it off the local disk. Task manager does not show a high CPU load or network load on the guest or host. I have copied this same VHD to another, non-patched hyper-v host Server 2012 and it runs great with no issues.
Has anyone else seen a significant drop in Hyper-V guest performance as a result of the recent Windows Updates?
How can I determine why the application login is so slow - is it checking for some resource that is not available?
Up until this past week everything has been just fine. When we rebooted the server after the recent Windows patches, the performance of all the guest servers has suffered. But this one critical application is very slow, taking minutes to open (instead of seconds) and get logged into it.
It is a disk intensive application and does not require network access. TS users use it off the local disk. Task manager does not show a high CPU load or network load on the guest or host. I have copied this same VHD to another, non-patched hyper-v host Server 2012 and it runs great with no issues.
Has anyone else seen a significant drop in Hyper-V guest performance as a result of the recent Windows Updates?
How can I determine why the application login is so slow - is it checking for some resource that is not available?
SBStech