Virtual Disk used Size is Zero
Hi All,
Got a 3.0.2 test environment, 2 hosts with a seperate physical VM Manager box. Been creating Xen PVM guests using both a downloaded OL5U7 template to clone from as well as using network boot to extracted iso via ftp (also OL5U7).
For the clones, I noticed the virtual disk name defaults to a 32-character string while I could name the virtual disk for the network boot method. What's the best practise for organising this? Should I leave the Virtual Disk name blank so it defaults to a 32-character string like the cloned guests?
Also, in Homes > Server Pools > Repositories > Virtual Disks, the cloned guests are showing the correct virtual disk usage but for the guests created using network boot to iso is showing zero for disk usage. The only difference I see between the 2 types of guests is the giest created using the extrated iso is using lvm for the root partition.
Is there a way to refresh the ovm manager view such that the disk usage is accurate for the guests?
Thanks.
831583 wrote:
For the clones, I noticed the virtual disk name defaults to a 32-character string while I could name the virtual disk for the network boot method. What's the best practise for organising this? Should I leave the Virtual Disk name blank so it defaults to a 32-character string like the cloned guests?Up to you. The actual filename will always be the UUID. The Manager just allows you to name new disks for display in the Manager only.
Also, in Homes > Server Pools > Repositories > Virtual Disks, the cloned guests are showing the correct virtual disk usage but for the guests created using network boot to iso is showing zero for disk usage. The only difference I see between the 2 types of guests is the giest created using the extrated iso is using lvm for the root partition.Correct. For a Network Boot image, the initial disk usage is 0. This will increase over time as more content is stored inside the image.
Is there a way to refresh the ovm manager view such that the disk usage is accurate for the guests?Refresh the repository.
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Creating a Virtual Disk using Diskpart
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It's a SQL 2012 cluster, which has around 10 vhdx disks shared this way. all the VHDX files are inside LUNs on a SAN. These LUNs are presented to all clustered members of the Windows Server 2012 R2 Hyper-V cluster, via Cluster Shared Volumes.
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.
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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.
Based on the failure policies for the resource and role, the cluster service may try to bring the resource online on this node or move the group to another node of the cluster and then restart it. Check the resource and group state using Failover Cluster
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.
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Thanks.
Eduardo RojasHi,
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
Best Regards,
Vincent Wu
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. -
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PS C:\corefig> Get-PhysicalDisk | ? OperationalStatus -ne OK | fl
ObjectId : {1}\\HV001\root/Microsoft/Windows/Storage/Pr
oviders_v2\SPACES_PhysicalDisk.ObjectId="{95
42513c-a0d4-11e3-8123-806e6f6e6963}:PD:{7e22
245f-0cf6-11e3-b1db-806e6f6e6963}"
PassThroughClass :
PassThroughIds :
PassThroughNamespace :
PassThroughServer :
UniqueId :
AllocatedSize : 1218696970240
BusType : Unknown
CannotPoolReason : In a Pool
CanPool : False
Description :
DeviceId :
EnclosureNumber :
FirmwareVersion :
FriendlyName : PhysicalDisk-1
HealthStatus : Warning
IsIndicationEnabled :
IsPartial : False
LogicalSectorSize : 0
Manufacturer :
MediaType : UnSpecified
Model :
OperationalStatus : Lost Communication
OtherCannotPoolReasonDescription :
PartNumber :
PhysicalLocation :
PhysicalSectorSize : 0
SerialNumber :
Size : 1999575711744
SlotNumber :
SoftwareVersion :
SpindleSpeed : 0
SupportedUsages : {Auto-Select, Manual-Select, Hot Spare,
Retired...}
Usage : Retired
PSComputerName :
PS C:\corefig> get-physicaldisk
FriendlyName CanPool OperationalS HealthStatus Usage Size
tatus
PhysicalDisk4 False OK Healthy Auto-Select 73.75 GB
PhysicalDisk0 False OK Healthy Auto-Select 1.82 TB
PhysicalDi... False Lost Comm... Warning Retired 1.82 TB
PhysicalDisk2 False OK Healthy Auto-Select 930.75 GB
PhysicalDisk3 False OK Healthy Auto-Select 74.53 GB
PhysicalDisk1 False OK Healthy Auto-Select 1.82 TB
PS C:\corefig> get-virtualdisk -friendlyname 'Data' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e2229cf-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = CF29227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 548413636608
DetachedReason = Incomplete
FootprintOnPool = 1096827273216
FriendlyName = Data
HealthStatus = Unhealthy
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = False
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 1099511627776
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =
PS C:\corefig> get-virtualdisk -friendlyname 'Backups' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e22255e-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = 5E25227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 743566213120
DetachedReason = Incomplete
FootprintOnPool = 1487132426240
FriendlyName = Backups
HealthStatus = Unhealthy
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = False
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 1649267441664
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =
PS C:\corefig> get-virtualdisk -friendlyname 'Music' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e2238b9-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = B938227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 39728447488
DetachedReason = By Policy
FootprintOnPool = 79456894976
FriendlyName = Music
HealthStatus = Unknown
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = True
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 161061273600
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =
PS C:\corefig> get-virtualdisk -friendlyname 'Videos' |FC
class CimInstance#ROOT/Microsoft/Windows/Storage/MSFT_VirtualDisk
ObjectId = {1}\\HV001\root/Microsoft/Windows/Storage/Providers_v2\SPACES_Virt
ualDisk.ObjectId="{9542513c-a0d4-11e3-8123-806e6f6e6963}:VD:{3debf056-01f1-11
e3-b1d6-001fbc081884}{7e2225bc-0cf6-11e3-b1db-001fbc081884}"
PassThroughClass =
PassThroughIds =
PassThroughNamespace =
PassThroughServer =
UniqueId = BC25227EF60CE311B1DB001FBC081884
Access = Read/Write
AllocatedSize = 223606734848
DetachedReason = Incomplete
FootprintOnPool = 447213469696
FriendlyName = Videos
HealthStatus = Unhealthy
Interleave = 262144
IsDeduplicationEnabled = False
IsEnclosureAware = False
IsManualAttach = False
IsSnapshot = False
LogicalSectorSize = 512
Name =
NameFormat =
NumberOfAvailableCopies =
NumberOfColumns = 1
NumberOfDataCopies = 2
OperationalStatus = Detached
OtherOperationalStatusDescription =
OtherUsageDescription =
ParityLayout = Unknown
PhysicalDiskRedundancy = 1
PhysicalSectorSize = 4096
ProvisioningType = Thin
RequestNoSinglePointOfFailure = False
ResiliencySettingName = Mirror
Size = 1759325978624
UniqueIdFormat = Vendor Specific
UniqueIdFormatDescription =
Usage = Other
WriteCacheSize = 0
PSComputerName =Hi omon_77,
You can first refer the following step by step third party article and KB:
Replace Failed Disks and Repair JBODs for Storage Spaces in Windows Server
https://technet.microsoft.com/en-us/library/dn782852.aspx?f=255&MSPPError=-2147217396
Replacing a failed disk in Windows Server 2012 Storage Spaces with PowerShell
https://www.hodgkins.net.au/storage/replace-failed-disk-in-storage-spaces-pool-with-powershell/
Step By Step: How to Replace Faulty Disk In Two-Way Mirrored Storage Tiered Space
http://charbelnemnom.com/2014/09/step-by-step-how-to-replace-faulty-disk-in-two-way-mirrored-storage-tiered-space-storagespaces-ws2012r2/
More information:
Storage Spaces - Designing for Performance
http://social.technet.microsoft.com/wiki/contents/articles/15200.storage-spaces-designing-for-performance.aspx
Storage Spaces Overview
http://technet.microsoft.com/en-us/library/hh831739.aspx
Windows Server Storage Spaces: What is it and why should I use it?
http://curah.microsoft.com/5049/windows-server-2012-r2-storage-spaces-what-is-it-and-why-should-i-use-it
I’m glad to be of help to you!
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