24GB RAM and 4 vCPUs has nothing to do with disk I/O - it's still the same amount of read/write requests going to the disk.
The issue in the thread was for Windows Server 2012, and if you read through the whole thread, there was eventually a hotfix that some users were pointed to. However, it does seem that this as a result of Microsoft issuing a fix, which indicates a software issue, not a hardware issue. Lastly, all the various workarounds you mention are not suggested by Microsoft in the thread - they are things that various users are suggesting. Cheers Ken From: [email protected] [mailto:[email protected]] On Behalf Of J- P Sent: Wednesday, 8 January 2014 1:00 PM To: [email protected] Subject: RE: [NTSysADM] event 129 on 2012 hyper-V guest thanks however, those are all up to date and from the link you sent this is HUGE issue that's pointing to MS with no real solution going on over 9 months back- and for only 40 concurrent users (at most) hitting the a file server with 24GB ram and 4 Virtual processors i suspect this is not load related- prior to this new box, I had the same amount of users hitting a server with one dual core cpu with 8gb of ram and never saw a trace of i/o overload just had to retire it as it was 8 yrs old- It seems NUMEROUS users have opened PSS cases and no actual resolution just suggestions like "update the driver" "turn of dedup" "disable VSS" "move your drive from virtual SCSI to IDE"- seems like they're thrwoing anything out to see what sticks. Jean-Paul Natola ________________________________ From: [email protected]<mailto:[email protected]> To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] event 129 on 2012 hyper-V guest Date: Wed, 8 Jan 2014 01:48:02 +0000 No - I meant drivers on your host. The issue seems to be I/O load - if the driver on the host is bad, that could be causing a backlog of I/O requests in the guest. From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of J- P Sent: Wednesday, 8 January 2014 12:21 PM To: [email protected]<mailto:[email protected]> Subject: RE: [NTSysADM] event 129 on 2012 hyper-V guest That is my exact setup, just to clarify , when you say update the driver , you are referring to the SCSI driver on the guest os exhibiting the behavior correct?, and where would i get it, it just says "Microsft hyper-V SCSI controller Its not like going to the the LSI website and punching in your model, version and OS
