Error Id 5121
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FAQ MembersRegister Login FailoverCluster event 5121 Hyper-V specific discussions Post a reply 3 posts • Page 1 of 1 FailoverCluster event 5121 by Magz » Tue Aug 21, 2012 8:32 am people like this post Hi,I have recently installed veeam backup and replication and it appears to work very well. All the backupjobs finishes successfully.What worries me is that I get a lot of error messages in the Windows System Log on all of my Hyper-V https://technet.microsoft.com/en-us/library/ee830327(v=ws.10).aspx hosts:Log Name: SystemSource: Microsoft-Windows-FailoverClusteringEvent ID: 5121Task Category: Cluster Shared VolumeLevel: ErrorKeywords: User: SYSTEMComputer: xxxxxxxDescription:Cluster Shared Volume 'Volume2' ('Cluster Disk 2') is no longer directly accessible from this cluster node. I/O access will be redirected to the storage device over the network through the node that owns the volume. This may result in degraded performance. https://forums.veeam.com/microsoft-hyper-v-f25/failovercluster-event-5121-t13205.html If redirected access is turned on for this volume, please turn it off. If redirected access is turned off, please troubleshoot this node's connectivity to the storage device and I/O will resume to a healthy state once connectivity to the storage device is reestablished.We have two Hyper-V 2008 R2 clusters connected to a HP EVA 8000 SAN With redundant fiberchannel. I use HP EVA VSS Hardware providers and a Veeam Proxyserver. The error-messages appear on all the hosts in both clusters.Do anyone know if these faults are to be expected, or if anything is configured wrong? Magz Novice Posts: 8 Liked: never Joined: Wed Aug 08, 2012 9:06 am Full Name: Magne Stenwig Private message Top Re: FailoverCluster event 5121 by foggy » Tue Aug 21, 2012 9:48 am people like this post This kind of events are standard for CSV backup, as the volume is switched to redirected mode to allow snapshot to be taken - this i
majority model) with all MS updates installed, below is more information about them: node1: Windows 2008 R2 Datacenter Core, Service Pack 1, Cluster Version 6.1.7601 node2: Windows 2008 R2 Datacenter Core, Service Pack 1, Cluster Version 6.1.7601 node3: Windows 2008 R2 Datacenter Core, Service Pack 1, Cluster Version 6.1.7601 These 3 nodes are connected to an Equallogic PS6010XV storage using 10Gbe cards (iSCSI SAN) like below: node1,2,3 |----- 10 Gb Card 1 ----- Dell 8024F Switch 1 ----- |-----------------| | | PS6010XV | |----- 10 Gb Card 2 ----- Dell 8024F Switch 2 ----- |-----------------| All three nodes have Dell HitKit installed (HitKit provides hardware VSS snapshots) C:\Users\administrator>vssadmin list providers vssadmin 1.1 - Ferramenta de linha de comando administrativa de cpias de sombra de volume (C) Copyright 2001-2005 Microsoft Corp. Nome do provedor: 'Microsoft Software Shadow Copy provider 1.0' Tipo de provedor: Sistema Identificao do provedor: {b5946137-7b9f-4925-af80-51abd60b20d5} Verso: 1.0.0.7 Nome do provedor: 'Dell EqualLogic VSS HW Provider' Tipo de provedor: Hardware Identificao do provedor: {d4689bdf-7b60-4f6e-9afb-2d13c01b12ea} Verso: 3.4.2.5386 Microsoft DPM 2010 3.0.7707.0 (Rollup 1) is installed into another physical machine and connected to the 3 node cluster through another network (Public Network). I've configured DPM to perform a host level backup using the hardware VSS provider using this link How to use Hardware VSS Writers for DPM Hyper-V Backup and configured DPM MaxAllowedParallellBackups param to 1 (don't know why DPM doesn't respect this parameter since I always see 3 simultaneous backups everytime, not only one). I created a protection group for all virtual machines with an Express Full every day in the afternoon .... everything was running as expected except the fact of several 5121 events shown in cluster logs but searching on the forums I found that this event is pretty normal since IO becomes redirected for some time during a hardware VSS snapshot. I can see the snapshots being created from Equallogic console too, each with its own proprietary (node1, node2, node3). What is really bothering me is that after some time the host level backup works Ok (several 5