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 Jean-Paul Natola From: [email protected] To: [email protected] Subject: RE: [NTSysADM] event 129 on 2012 hyper-V guest Date: Wed, 8 Jan 2014 00:34:41 +0000 Seems to be a long thread on this here: http://social.technet.microsoft.com/Forums/windowsserver/en-US/e95631c6-c6b0-4dc8-a003-af4adbf113e9/windows-server-2012-can-occasionally-not-access-second-virtual-hard-drive-inside-a-vm?forum=winserverhyperv (lots of people with file servers commenting). Seems to be an issue logged when you have a disk connected to the virtual SCSI adapter, however the issue also occurs when connected to the IDE adapter (but isn’t logged). I’d suggest opening a case with PSS (if the problem persists after updating any relevant drivers etc). In the interim, you could try disabling VSS snapshots on the host volume (if you don’t need them) Cheers Ken From: [email protected] [mailto:[email protected]] On Behalf Of J- P Sent: Wednesday, 8 January 2014 10:53 AM To: [email protected] Subject: RE: [NTSysADM] event 129 on 2012 hyper-V guest only one of the 5 guest are exhibiting this that is why i didn't think hardware (not at the disk level at least) I wouldnt mind calling PSS but I'd hate to hear "its the hardware not the os" Jean-Paul Natola From: [email protected] To: [email protected] Subject: RE: [NTSysADM] event 129 on 2012 hyper-V guest Date: Tue, 7 Jan 2014 23:39:01 +0000 The blog poster is seeing the event on a host server, not a guest. You are seeing this event on a guest? And you are not seeing anything on the host? Cheers Ken From: [email protected] [mailto:[email protected]] On Behalf Of J- P Sent: Wednesday, 8 January 2014 7:14 AM To: [email protected] Subject: RE: [NTSysADM] event 129 on 2012 hyper-V guest No luck, file server still locking up and same events start creping up again any thoughts please jp From: [email protected] To: [email protected] Subject: [NTSysADM] event 129 on 2012 hyper-V guest Date: Tue, 7 Jan 2014 12:14:41 -0500 Hi all, I have a hyper V host 2012r2 running 5 VM's 2008r2 and 2012r2 one of the 2012r2 (happens to be the file server of course) is getting tons of event 129 Reset to device, \Device\RaidPort0, was issued this is the only guest the event is logged on so I dont believe its a raid/disk error as other articles state. I have applied this change http://blogs.technet.com/b/kevinholman/archive/2013/06/21/event-id-129-storachi-reset-to-device-device-raidport0-was-issued.aspx this step What finally resolved this for me – was changing the power management settings, from Balanced to High Performance. What this actually changed that was critical to this condition was modifying PCI Express > Link State Power Management > Off hoping it will work, does anyone have any thoughts? Its a DELL PE R710 6x600gb sas in raid10 perc 6/i Jean-Paul Natola

