HP EVA 8100 - HSV210 - Windows Server 2012 disk display three times

Hi together
I have a problem with a HP EVA 8100 and the Windows Server 2012. When im presenting the disks in the HP Command View to the Server, the harddisk is display three times in the disk management.
Here the view in the HP Command View:
And here on the Server:
On the server i had install all the drivers etc.
It would be great if u could help me.
Thanks alot and kind regards
Lars

Hi Vijay MC,
When we meet the disk id conflict we can try to changed the disk ID of the disk id, you can use uniqueid to generate the new disk.
Uniqueid
http://technet.microsoft.com/en-us/library/cc730793.aspx
The similar thread:
"The disk is offline because it has a signature collision with another disk that is online" .... What can I do to change a hdd signature?____
http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/the-disk-is-offline-because-it-has-a-signature/2e1f20c0-8fbb-4952-a789-a0f1578f1616
I’m glad to be of help to you!

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Windows Server 2012 R2 file sharing

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Hi Nikorios,
This issue occurs for one of the following reasons:
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https://support.microsoft.com/kb/2722035/en-us
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Windows Server 2012 - Hyper-V - iSCSI SAN - All Hyper-V Guests stops responding and extensive disk read/write

We have a problem with one of our deployments of Windows Server 2012 Hyper-V with a 2 node cluster connected to a iSCSI SAN.
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iSCSI SAN:
QNAP NAS TS-869 Pro, 8 INTEL SSDSA2CW160G3 160 GB i a RAID 5 with a Host Spare. 2 Teamed NIC.
Switch:
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Virtual Machines:
3 Windows Server 2012 Standard - 1 DC, 1 FileServer, 1 Application Server.
1 Windows Server 2008 Standard Exchange Server.
All VMs are using dynamic disks (as recommended by Microsoft).
Updates
We have applied the most resent updates to the Hosts, WMs and iSCSI SAN about 3 weeks ago with no change in our problem and we continually update the setup.
Normal operation
Normally this setup works just fine and we see no real difference in speed in startup, file copy and processing speed in LoB applications of this setup compared to a single host with 2 10000 RPM Disks. Normal network speed is 10-200 Mbit, but occasionally
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Symptoms (i.e. this happens, or does not happen, at the same time)
I we look at resource monitor on the host then we see that there is often an extensive read from a VHDX of one of the VMs (40-60 Mbyte/s) and a combined write speed to many files in \HarddiskVolume5\System Volume Information\{<someguid and no file extension>}.
See iamge below.
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viewer).
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The QNAP uses about 50% processing Power on all cores.
We see no dropped packets on the switch.
(I have split the image to save horizontal space).
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Questions
Why does all VMs stop responding and why is there such intensive Read/Writes to the iSCSI SAN?
Could it be anything in our setup that cannot handle all the read/write requests? For instance the iSCSI SAN, the hosts, etc?
What can we do about this? Should we use MultiPath IO instead of NIC teaming to the SAN, limit bandwith to the SAN, etc?

Hi,
> All VMs are using dynamic disks (as recommended by Microsoft).
If this is a testing environment, it’s okay, but if this a production environment, it’s not recommended. Fixed VHDs are recommended for production instead of dynamically expanding or differencing VHDs.
Hyper-V: Dynamic virtual hard disks are not recommended for virtual machines that run server workloads in a production environment
http://technet.microsoft.com/en-us/library/ee941151(v=WS.10).aspx
> This is the primary host and normaly all VMs run on this host.
According to your posting, we know that you have Cluster Shared Volumes in the Hyper-V cluster, but why not distribute your VMs into two Hyper-V hosts.
Use Cluster Shared Volumes in a Windows Server 2012 Failover Cluster
http://technet.microsoft.com/en-us/library/jj612868.aspx
> 2 teamed NIC dedicated to iSCSI storage.
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Windows Server 2012 has built-in network teaming feature, I don’t article which declare that Windows Server 2012 network teaming support iSCSI connection)
Understanding Requirements for Failover Clusters
http://technet.microsoft.com/en-us/library/cc771404.aspx
> I have seen using MPIO suggests using different subnets, is this a requirement for using MPIO
> or is this just a way to make sure that you do not run out of IP adressess?
What I found is: if it is possible, isolate the iSCSI and data networks that reside on the same switch infrastructure through the use of VLANs and separate subnets. Redundant network paths from the server to the storage system via MPIO will maximize availability
and performance. Of course you can set these two NICs in separate subnets, but I don’t think it is necessary.
> Why should it be better to not have dedicated wireing for iSCSI and Management?
It is recommended that the iSCSI SAN network be separated (logically or physically) from the data network workloads. This ‘best practice’ network configuration optimizes performance and reliability.
Check that and modify cluster configuration, monitor it and give us feedback for further troubleshooting.
For more information please refer to following MS articles:
Volume Shadow Copy Service
http://technet.microsoft.com/en-us/library/ee923636(WS.10).aspx
Support for Multipath I/O (MPIO)
http://technet.microsoft.com/en-us/library/cc770294.aspx
Deployments and Tests in an iSCSI SAN
http://technet.microsoft.com/en-US/library/bb649502(v=SQL.90).aspx
Hope this helps!
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Disappearing disk space Windows Server 2012 R2 with SharePoint Server 2013 Enterprise

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I forgot to include the application event log entry for explorer.exe crashing:
Faulting application name: explorer.exe, version: 6.3.9600.17039, time stamp: 0x53156588
Faulting module name: KERNELBASE.dll, version: 6.3.9600.17055, time stamp: 0x532954fb
Exception code: 0xc06d007e
Fault offset: 0x0000000000005bf8
Faulting process id: 0xae8
Faulting application start time: 0x01cfab3a273787fd
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Faulting module path: C:\Windows\system32\KERNELBASE.dll
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Faulting package full name:

Detect second disk on Windows Server 2012

Hi,
newly installed Windows Server 2012 R2 with two internal harddrives.
The two disks shows up in Disk Manager but only one in File Explorer.
How can i configure the server to expose the second disk in File Explorer?
/Roger

Hi Roger,
Has the problem been solved by online/initializing/assigning drive letter ?
Best Regards
Elton Ji
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Virtual RAID Array Migration to Windows Server 2012 R2 Disk offline, Degraded, Detached and split

My Residential server is used as a file and web server, however i also use it for learning so it has grown slow over the last couple of years, i now need to get it working ready for when i go to UNI. I have upgraded from windows server 2012 Standard to windows
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Hi,
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Degraded Storage Spaces Storage Pool after single HDD failure
http://social.technet.microsoft.com/Forums/en-US/3a7e2a7d-4ad7-48cc-8165-0d6673e37436/degraded-storage-spaces-storage-pool-after-single-hdd-failure?forum=winserveressentials
Regards,
Mandy
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are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
Thanks for helping make community forums a great place.

0x8056530b error enabling disk deduplication on Windows Server 2012 R2 Volume - any ideas why or how to fix?

I'm getting the following error when trying to enable disk de-duplication on a volume on my Windows 2012 R2 file server. The error is:
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- ADEHART
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have you compared this issue to the ones that are successful and compared what is different?
Have you made sure of the following:
Servers
See the following list for server requirements for deduplication:
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Volumes
Volumes that are candidates for deduplication must conform to the following requirements:
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Note
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Yesterday happened a very strange problem, both the Quorum Disk and the DTC disks got the information completetly erased. The vhdx disks themselves where there, but the info inside was gone.
The SQL admin had to recreated both disks, but now we don't know if this issue was related to the virtualization platform or another event inside the cluster itself.
Right now I'm seen this errors on one of the VM Guest:
Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 3/4/2014 11:54:55 AM
Event ID: 1069
Task Category: Resource Control Manager
Level: Error
Keywords:
User: SYSTEM
Computer: ServerDB02.domain.com
Description:
Cluster resource 'Quorum-HDD' of type 'Physical Disk' in clustered role 'Cluster Group' failed.
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Manager or the Get-ClusterResource Windows PowerShell cmdlet.
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>1069</EventID>
<Version>1</Version>
<Level>2</Level>
<Task>3</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2014-03-04T17:54:55.498842300Z" />
<EventRecordID>14140</EventRecordID>
<Correlation />
<Execution ProcessID="1684" ThreadID="2180" />
<Channel>System</Channel>
<Computer>ServerDB02.domain.com</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="ResourceName">Quorum-HDD</Data>
<Data Name="ResourceGroup">Cluster Group</Data>
<Data Name="ResTypeDll">Physical Disk</Data>
</EventData>
</Event>
Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 3/4/2014 11:54:55 AM
Event ID: 1558
Task Category: Quorum Manager
Level: Warning
Keywords:
User: SYSTEM
Computer: ServerDB02.domain.com
Description:
The cluster service detected a problem with the witness resource. The witness resource will be failed over to another node within the cluster in an attempt to reestablish access to cluster configuration data.
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>1558</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>42</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2014-03-04T17:54:55.498842300Z" />
<EventRecordID>14139</EventRecordID>
<Correlation />
<Execution ProcessID="1684" ThreadID="2180" />
<Channel>System</Channel>
<Computer>ServerDB02.domain.com</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="NodeName">ServerDB02</Data>
</EventData>
</Event>
We don't know if this can happen again, what if this happens on disk with data?! We don't know if this is related to the virtual disk sharing technology or anything related to virtualization, but I'm asking here to find out if it is a possibility.
Any ideas are appreciated.
Thanks.
Eduardo Rojas

Hi,
Please refer to the following link:
http://blogs.technet.com/b/keithmayer/archive/2013/03/21/virtual-machine-guest-clustering-with-windows-server-2012-become-a-virtualization-expert-in-20-days-part-14-of-20.aspx#.Ux172HnxtNA
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Vincent Wu
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Windows Server 2012 Cluster Validation Failing On List All Potential Cluster Disks

I'm in the process of setting up a new cluster using Windows Server 2012 with a view to migrate from our existing 2008 R2 cluster. I am having problems validating the storage and the wizard keeps failing on the List All Potential Cluster Disks
test (which causes all the other storage tests to be cancelled).
I'm getting the following error:
Failed while verifying removal of any Persistent Reservation on physical disk 19ba99a4 at node RC-HYPERV-3.riddlesdown.local.
When I look in validation report, disk 19ba99a4 is the management LUN (Access LUN 31 as termed by the storage software).
Looking on my 2008 R2 cluster this doesn't appear in Disk Management.
Any ideas how I can get rid of it or the error that it is causing?

Hi,
Thank you for your question.
I am trying to involve someone familiar with this topic to further look at this issue. There might be some time delay. Appreciate your patience.
Thank you for your understanding and support.
Best Regards,
Aiden
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Windows Server 2012 Logical Disk Free Space (%) Low

I enabled the monitor "Windows Server 2012 Logical Disk Free Space (%) Low" and configured a low threshold to test. I started to get a bunch of warnings from servers, for example:
The disk \\?\Volume{ee0222ed-16de-40a5-af89-f95db3fdf5a4} on computer PC is running out of disk space. The value that exceeded the threshold is 11% free space.
Now I checked on the server, and all the disks have more than 11% free space. Additionally, I don't see any disks with such a name/guid.
When looking at the additional knowledge of the monitor, I see that it is using the following information:
Object Name: Logical Disk
Counter Name: PercentFree
My question is where is this disk coming from, and how can I avoid these disks from creating false alarms? When looking in the Windows Server
From my analyzing the DB, I see that these are the partitions on the server without a volume letter. Any way to avoid getting these discovered and/or alerts, without overriding each one?

Hi,
These "strange" disks are called mount points.
They get discovered by the "Mount Point Discovery Rule".
Go to your authoring => rules => search for the rule above and disable it.
If you want to remove all the instances in your environment you need to use Remove-SCOMDisabledClassInstance
powershell cmdlet.
More info on the cmdlet can be found here: http://technet.microsoft.com/en-us/library/hh920257%28v=sc.20%29.aspx
If you have any more questions please do not hesitate to ask
It's doing common things uncommonly well that brings succes. Check out my SCOM link blog:
SCOM link blog

Windows Server 2012 Standard Scheduling for backup for multiple disk

Hi,
Iam using Windows Server 2012 Standard,
How to create backup schedule for multiple hard disk. 1. I have scheduled a multiple backup for disk1, disk2 but the backup fails.
How to create different backup schedule for single Hard disk.
Please help

Hi
Check these artciles,same on 2012 r2 standard;
https://technet.microsoft.com/en-us/library/cc754054.aspx?f=255&MSPPError=-2147217396
https://technet.microsoft.com/en-us/library/dd834883.aspx

HP EVA 8100 - HSV210 - Windows Server 2012 disk display three times

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