I'm using DPM 2010 to backup our CSVs which reside on a HP P2000 G3 FC/iSCSI. CSVs on the Hyper-V cluster are accessed by FC only. iSCSI is used to connect the DPM server to the storage.
Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 17.4.2011 12:39:47
Event ID: 5121
Task Category: Cluster Shared Volume
Level: Error
Keywords:
User: SYSTEM
Computer: server2.domain.local
Description:
Cluster Shared Volume 'Volume1' ('CSV10k') 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. 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.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-FailoverClustering" Guid="{BAF908EA-3421-4CA9-9B84-6689B8C6F85F}" />
<EventID>5121</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>38</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2011-04-17T10:39:47.521872700Z" />
<EventRecordID>1197950</EventRecordID>
<Correlation />
<Execution ProcessID="2136" ThreadID="4360" />
<Channel>System</Channel>
<Computer>server2.domain.local</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="VolumeName">Volume1</Data>
<Data Name="ResourceName">CSV10k</Data>
</EventData>
</Event>
This happens during backup using Microsoft's Data Protection Manager 2010, which utilizes HP's VSS Hardware provider:
C:\Users\administrator>vssadmin list providers
vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool
(C) Copyright 2001-2005 Microsoft Corp.
Provider name: 'Microsoft Software Shadow Copy provider 1.0'
Provider type: System
Provider Id: {b5946137-7b9f-4925-af80-51abd60b20d5}
Version: 1.0.0.7
Provider name: 'HP StorageWorks P2000/MSA2000 VSS Provider'
Provider type: Hardware
Provider Id: {bd04cbf9-212c-4553-9ea5-c5bfb05ccc8f}
Version: 2.7.0.0
I'm in contact with HP and was told the storage (all latest firmware) has full support for CSV. Why am I even getting this error and is it something I should worry about. What additional steps can I take to resolve this. Is additional information, logs needed. What can I test, ask HP...