Hyper-V Failover w/ Local Storage question

I'll also suggest option 3 - Replicating to an offsite service that can power up the VMs in the event of disaster.
Azure is a good bet. Especially when paired with System Center Data Protection Manager
Also Datto has a backup appliance with built in local virtualization and hybrid cloud storage with offsite virtualization.

Hi everyone,I have a question about Hyper-V Failover for a client of mine.He runs SQL (very small database roughly 3GB) and would like a MAXIMUM of 1-hour of downtime in the event of a failure.I'm thinking about a hyper-v scenario with Failover using local storage (he doesn't have the funds for shared storage).We will have 2 virtual servers: a DC and the sql server.Do I need 3rd party software to duplicate the local storage data across servers, or is this accomplished with the replication that occurs every 5 minutes in Hyper-V?High availability isn't necessary, but if I'm able to get him back up and running with minimal data loss in under an hour, he's going to be a happy camper.I've looked high and low for an answer to this, but seem to be getting mixed reviews.What do you guys think?On another note, those who care to answer:1)...
This topic first appeared in the Spiceworks Community

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Hyper-V Failover Clustering MAC Address Question

Hello,
Can someone please explain how MAC address assignment works in a hyper-v cluster? I have a couple machines that need to have a static MAC address assigned and want to know how the cluster handles it when the VM is Live migrated to a new host. Thanks in advance.

Hi ice2921,
Yes, after export and import to another Hyper-V host, the dynamic MAC address of the VM changes
after export and import to another Hyper-V host, the dynamic MAC address of the VM changes, this is by design.
As Alexey offered article, to have a dedicated Mac Address for the VMs they should be set to static MAC address, it is normal the dynamic assign to vm when the all the Hyper-v
host as there own MAC address range , this is by design of Hyper V and failover clustering when using Dynamic MAC addresses for VMs.
If you are using 2008R2 Hyper-V failover and you found it often lost the network connection and configuration, please install the hotfix.
Reinstalled the integration services
The network connection of a running Hyper-V virtual machine may be lost under heavy outgoing network traffic on a computer that is running Windows Server 2008 R2 SP1
http://support.microsoft.com/kb/2263829
I’m glad to be of help to you!
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Local storage question?

I have been trying to download an app but it keeps saying "there is not enough available local storage to download". I have tried deleting A LOT of stuff off my phone but it's still not working. Please help.

Most apps require at least twice their installed space be available in order to initially install, plus you need enough free space for the phone to operate. So, if an app's installed space is let's say 800MB's, you'll need at least 1.6GB's free to install the app, plus enough free space for the phone to operate. You'll get the space back once the app is installed.

3 Node hyper-V 2012 R2 Failover Clustering with Storage spaces on one of the Hyper-V hosts

Hi,
We have 3x Dell R720s with 5x 600GB 3.5 15K SAS and 128 GB RAM each. Was wondering if I could setup a Fail-over Hyper-V 2012 R2 Clustering with these 3 with the shared storage for the CSV being provided by one of the Hyper-V hosts with storage spaces installed
(Is storage spaces supported on Hyper-V?) Or I can use a 2-Node Failover clustering and the third one as a standalone Hyper-V or Server 2012 R2 with Hyper-V and storage spaces.
Each Server comes with QP 1G and a DP10G nics so that I can dedicate the 10G nics for iSCSI
Dont have a SAN or a 10G switch so it would be a crossover cable connection between the servers.
Most of the VMs would be Non-HA. Exchange 2010, Sharepoint 2010 and SQL Server 2008 R2 would be the only VMS running as HA-VMs. CSV for the Hyper-V Failover cluster would be provided by the storage spaces.

I thought I was tying to do just that with 8x600 GB RAID-10 using the H/W RAID controller (on the 3rd Server) and creating CSVs out of that space so as to provide better storage performance for the HA-VMs.
1. Storage Server : 8x 600GB RAID-10 (For CSVs to house all HA-VMs running on the other 2 Servers) It may also run some local VMs that have very little disk I/O
2. Hyper-V-1 : Will act has primary HYPER-V hopst for 2x Exchange and Database Server HA-VMs (the VMDXs would be stored on the Storage Servers CSVs on top of the 8x600GB RAID-10). May also run some non-HA VMs using the local 2x600 GB in RAID-1
3. Hyper-V-2 : Will act as a Hyper-V host when the above HA-VMs fail-over to this one (when HYPER-V-1 is down for any reason). May also run some non-HA VMs using the local 2x600 GB in RAID-1
The single point of failure for the HA-VMs (non HA-VMs are non-HA so its OK if they are down for some time) is the Storage Server. The Exchange servers here are DAG peers to the Exchange Servers at the head office so in case the storage server mainboard
goes down (disk failure is mitigated using RAID, other components such as RAM, mainboard may still go but their % failure is relatively low) the local exchange servers would be down but exchange clients will still be able to do their email related tasks using
the HO Exchange servers.
Also they are under 4hr mission critical support including entire server replacement within the 4 hour period.
If you're OK with your shared storage being a single point of failure then sure you can proceed the way you've listed. However you'll still route all VM-related I/O over Ethernet which is obviously slower then running VMs from DAS (with or without virtual SAN
LUN-to-LUN replication layer) as DAS has higher bandwidth and smaller latency. Also with your scenario you exclude one host from your hypervisor cluster so running VMs on a pair of hosts instead of three would give you much worse performance and resilience:
with 1 from 3 physical hosts lost cluster would be still operable and with 1 from 2 lost all VMs booted on a single node could give you inadequate performance. So make sure your hosts would be insanely underprovisioned as every single node should be able to
handle ALL workload in case of disaster. Good luck and happy clustering :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

V2V - Hyper-V 2012R2 / SCVMM 2012R2- ESX to HV - Local storage not recognised in conversion wizard?

Hi,
I am in the final stages of testing for our move from VMWare to Hyper-V. I am currently testing migrations of VMWare VMs to Hyper-V. I've connected SCVMM to the vCentre server and attached to the ESX hosts so I can see all the VMs in the
VMM console.
My Hyper-V servers are running in a failover cluster and have shared storage as well as local storage for less important VMs. When I run the Convert VM Wizard I can't see the local storage listed when selecting a storage location for the newly converted
VM. It appears that VMM assumes that the VMWare VM is high availability and thus only shows me the shared clustered drives. Its not HA in VMWare. although the ESX host is a enterprise version. This theory is born out when I've converted a
VWMare VM to Hyper-V I click on the migrate button to move it to the local storage in the new target server location screen I get a tick box, that is ticked, showing the VM is HA. When I deselect it I can then select local storage and migrate the
VM over.
Is there any way of stopping VMM pre-setting the VMWare VMs as HA so I can select the local storage in the conversion wizard?
Any help gratefully received.
Rob

Hi Simar
Thanks for the advice, I've now got the VM back in a stable state and running HA.
Just to finish off the thread for future I did the following
- Shutdown the VM
- Remove the VM from the Failover Cluster Manager (as you say this did leave the VM configuration intact)
- I was unable to import the VM as per your instructions so I copied the VHD to another folder on the local storage and took a note of the VM configuration.
- Deleted the VM from VMM so this removed all the configuration details/old VHD.
- Built a new VM using the details I saved from the point above
- Copied the VHD into the new VMs folder and attached it to the VM.
- Started it up and reconfigured networking
- Use VMM to make the VM HA.
I believe I have found the reason for the initial error, it appears there was a empty folder in the Snapshot folder, probably from an old Checkpoint that hadn't cleaned up properly when it was deleted.
The system is up and running now so thanks again for the advice.
Rob

How can I avoid the Local storage pop-up question dialog box during playing you tube vedios ?

How can I avoid the Local storage pop-up question dialog box during playing you tube vedios ?

You might try tweaking your global privacy settings. I suspect it's set to "always ask."
Go to this page -- http://www.macromedia.com/support/documentation/en/flashplayer/help/settings_manager02.htm l -- which contains the settings panel for Flash Player, and click on the various "deny" buttons to disable this. (It's a good idea to click on all the tabs to check the settings.)
If this works for you, please post back. (I know it worked for me.)
Ortho_Fan
(not a techie)

I have learned a lot more about battery issues lately. One question of importance: Does playing a streaming mp3 off the web eat more battery, or less, than playing that same mp3 on local storage on the Touch?

What consumes battery juice more, playing an mp3 streaming off the web, or playing it from local storage on the iPod Touch. (Or on iPhones, or on iPads).
I have learned much recently on battery issues, and get better battery life now. This is an important question in that regard, I figure.

That makes sense to me. Though we like to stream many things that we do not own locally, this encourages me to store a lot of m3 material we do own, on our devices. Thanks!

The new Yosemite Photos app local storage usage question

Hi,
Did anyone check the local storage usage for the new Photos on Yosemite?
How much space does it take for all the lores photos locally if the originals are stored in iCloud.
Lets say if 100GB of RAW files are migrated from Aperture in to Photos to cloud. This should be 100GB in the cloud and how much on OS X?
Can a RAW file still be downloaded from cloud later or are they transformed to jpgs once uploaded?
What if there is not enough storage for all lores photos on iOS or OS X representing all the original iCloud photos?
I'm really puzzled about this.
Thanks

I just installed the Yosemite upgrade with Photos. I don't use Aperture of the iCloud, but the iPhotos library migrated with about the same disk space, but it is doubled, because the old iPhoto library is still on disk.

Live migration to HA failed leaving VHD on local storage and VM in cluster = Unsupported Cluster Configuration

Hi all
Fun one here, I've been moving non-HA VMs to a HA and everything has been working perfectly until now. All this is being performed on Hyper-V 2012R2, Windows Server 2012R2 and VMM 2012R2.
For some reason on the VMs failed the migration with an error 10608 "Cannot create or update a highly available virtual machine because Virtual Machine Manager could not locate or access Drive:\Folder" The odd thing is the drive\folder is
a local storage one and I selected a CSV in the migration wizard.
The net result is that the VM is half configured into the cluster but the VHD is still on local storage. Hence the "unsupported cluster configuration" error.
The question is how do I roll back? I either need to get the VM out of the cluster and back into a non-HA state or move the VHD onto the CSV. Not sure if the latter is really a option.
I've foolishly clicked "Ignore" on the repair so now I can't use the "undo" option (brain fade moment on my part).
Any help gratefully received as I'm a bit stuck with this.
Thanks
Rob

Hi Simar
Thanks for the advice, I've now got the VM back in a stable state and running HA.
Just to finish off the thread for future I did the following
- Shutdown the VM
- Remove the VM from the Failover Cluster Manager (as you say this did leave the VM configuration intact)
- I was unable to import the VM as per your instructions so I copied the VHD to another folder on the local storage and took a note of the VM configuration.
- Deleted the VM from VMM so this removed all the configuration details/old VHD.
- Built a new VM using the details I saved from the point above
- Copied the VHD into the new VMs folder and attached it to the VM.
- Started it up and reconfigured networking
- Use VMM to make the VM HA.
I believe I have found the reason for the initial error, it appears there was a empty folder in the Snapshot folder, probably from an old Checkpoint that hadn't cleaned up properly when it was deleted.
The system is up and running now so thanks again for the advice.
Rob

Moving VMs from Standalone Hyper-V to Hyper-v Failover Cluster

Hello All.................I need to move Virtual Machines from Standalone Hyper-V based on Windows Server 2012 R2 to a Hyper-V Failover Cluster based on Windows Server 2012 R2.
- The VMs OS is Windows Server 2012 R2
- Applications installed on VMs are SCCM, SCOM, SharePoint, etc.
1. I am looking for a Checklist that I can run through and move them. To make sure I do not miss out anything.
2. Would a downtime be required in this scenario while the VM is being moved?
3. What requires special attention in this scenario?

Thanks for the reply.
So, I do not need to do anything and just simply add both the cluster and standalone into VMM and then simply use the Move option. Please, confirm if I have understood it correct.
Yes. But be carefull. First shut down your VM's
if possible and configure them in such a way they don't automatically start. If you install the SCVMM Agent, some Hyper-V related services are restarted, when some VMs start during that process you system may stall. I have seen this multipe times.
There is another dirty option that worked of us perfectly. Export the VMs. Then import those VMs to a local disk on one Hyper-V Server. Refresh the Hyper-V Server and Virtual Machines on that Hyper-V Server. Give it a few minutes. Then do
a Live Migration while at the same time makeing it "Highly Available" by moving it to your CSV. Works flawlessly. DO NOT IMPORT THE VMS TO YOUR CSV, otherwise you can't change it to "Highly Avaiable" unless you have
two CSVs. Importing it straight to a CSV does not make them Highly Available.
Boudewijn Plomp | BPMi Infrastructure & Security
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Live migration of VM from CSV storage - local storage

I have a VM I want to migrate from our CSV storage onto local storage. However, I can't find a way to complete this.
Live migration won't give me the local disks as an acceptable destination.
During this live migration even if I say that I don't want it to be highly available, the next part to the wizard doesn't give me any options whatsoever to move it anywhere.
I've tried moving it via the Hyper-V manager - which then directs me to the Failover Cluster Manager. Even there I can't give it a suitable destination on the local disk to stick the machine.
What am I missing in this?
Is there a way to do this without manually copying the VHDs to that location and creating a new VM?

As an additional option, you can use one time backup/restore procedure, using whatever free backup tool you want to.
We have done something similar with VeeamZIP that in many ways resembles simple zip-utility for VMs.
We had backed up given VM firstly, and, then, during restoration procedure selected local disks as the datastore the VM should be restored to; worked like a charm.
Kind regards, Leonardo.

Setting Storage Classification on Local Storage (e.g. local SSDs.)

Hi all, I'm integrating SCVMM 2012 SP1 on Windows Server 2012 R2 Hyper-V with XenDesktop 7. When defining storage resources in XenDesktop, it can see the 'Local Storage' classification from SCVMM and use that for VM placement.
What this does though, is treat all local disks that have been marked by SCVMM as 'Available for Placement' as that Local Storage. (i.e. in the SCVMM console, view the properties of a Hyper-V host, select 'Available for placement' on specified volumes under
Hardware and then under Storage view the Storage Classifications on each physical drive.
Instead, I'd like to be able to treat each physical direct attached drive as a separate location for XenDesktop VM placement. To that end, I've been looking at setting a different storage classification for each physical drive I'm targeting. I assume this
is the right approach as XenDesktop looks to query SCVMM for the storage classifications to define VM placement.
When attempting to change a storage classification on a physical drive in the host properties in SCVMM, I receive the following error:
Virtual Machine Manager
VMM is unable to process one of the provided parameters for the cmdlet (Set-SCStorageDisk):
Cannot convert 'System.Object[]' to the type 'Microsoft.SystemCenter.VirtualMachineManager.StorageDisk' required by parameter 'StorageDisk'. Specified method is not supported.
Try the operation again. If the issue persists, contact Microsoft Help and Support.
ID: 12416
OK
Directly running the PowerShell code returns the same error (as you would expect).
$vmHost = Get-SCVMHost -ID "31ddbd43-b14f-42a1-9326-710b45eec45d"
$storageClassification = Get-SCStorageClassification -Name "Local Drive D" -ID "a818fcbb-3346-49c4-837b-df2be834f7f7"
$hostDisk = Get-SCStorageDisk -VMHost $vmHost -Name "\\.\PHYSICALDRIVE0"
Set-SCStorageDisk -StorageDisk $hostDisk -StorageClassification $storageClassification -JobGroup "40edcf09-239e-496e-8dce-84b5eec02bb3" -Verbose
Set-SCVMHost -VMHost $vmHost -JobGroup "40edcf09-239e-496e-8dce-84b5eec02bb3" -RunAsynchronously -VMPaths "C:\ProgramData\Microsoft\Windows\Hyper-V|D:\" -BaseDiskPaths ""
Interestingly, if I change $hostDisk to $hostDisk[0], the Set-SCStorageDisk line runs and produces no error, but this does not actually achieve the desired effect.
Can anyone offer some thoughts or reasons why I would be seeing this? Or am I going about this the wrong way (and thus failing).
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Requirements for similar hardware in a 2012 Hyper-V failover cluster?

Simple question:
How similar does the hardware have to be on the host servers in a Windows Server 2012 Hyper-V failover cluster?
We have 6 dell servers that we are hoping to use for building a Windows 2012 Hyper-V cluster.
As I recall from our existing 2-host Hyper-V cluster, which is running on 2008 R2, there are fairly harsh demands in the cluster validation wizard with regard to similarity of hardware. So I am wondering if it will work?
The servers in question are 3 x R620, 2 x T410 and 1 x T610 Dell servers. So 3 x 12th generation servers and 3 x 11th generation servers
The servers all use Intel CPUs:
R620: Xeon E5-2670/2680
T410/610: Xeon X5650
and broadcom NICs:
T610: Broadcom 5709c
2 x T410: Broadcom 5716c
3 x R620: Broadcom 5720
Windows 2012 is supported by Dell on all the servers.
Shared storage will be on an SMB3 file share.

Simple question:
How similar does the hardware have to be on the host servers in a Windows Server 2012 Hyper-V failover cluster?
We have 6 dell servers that we are hoping to use for building a Windows 2012 Hyper-V cluster.
As I recall from our existing 2-host Hyper-V cluster, which is running on 2008 R2, there are fairly harsh demands in the cluster validation wizard with regard to similarity of hardware. So I am wondering if it will work?
The servers in question are 3 x R620, 2 x T410 and 1 x T610 Dell servers. So 3 x 12th generation servers and 3 x 11th generation servers
The servers all use Intel CPUs:
R620: Xeon E5-2670/2680
T410/610: Xeon X5650
and broadcom NICs:
T610: Broadcom 5709c
2 x T410: Broadcom 5716c
3 x R620: Broadcom 5720
Windows 2012 is supported by Dell on all the servers.
Shared storage will be on an SMB3 file share.
You'll be fine with a listed config no need to have identical machines. The only thing I'd try to change is use the same NICs all-around if possible.
P.S. Make sure you understand SMB share is a single point of failure unless SoFS or "old skool" NAS failover is configured. But it adds latency so using shared storage
directly w/o a file transport is FASTER and CHEAPER.
StarWind iSCSI SAN & NAS

2 Node Hyper-V failover cluster with sql server

I have 2 IBM Servers with Server 2012 installed and both machines have SQL server express. Is it possible to create HYPER-V Failover between the 2 servers including the SQL SERVER Instance meaning if the main node fails the second server will take over.
The second will act as virtualized failover of the main node with failover instace to act as active to active approach.
I hope can someone give me an advice with my question.

I have 2 IBM Servers with Server 2012 installed and both machines have SQL server express. Is it possible to create HYPER-V Failover between the 2 servers including the SQL SERVER Instance meaning if the main node fails the second server will take over.
The second will act as virtualized failover of the main node with failover instace to act as active to active approach.
I hope can someone give me an advice with my question.
Sure you can do that. But it's a long story what's better SQL Server FCI or AlwaysOn. See:
FCI Vs. AlwaysOn
http://msdn.microsoft.com/en-us/library/ff929171.aspx
(biggest issue with AlwaysOn - it does require Enterprise license so is COSTY)
Good idea to ask here:
SQL Server High Availability and Disaster Recovery
http://social.technet.microsoft.com/Forums/sqlserver/en-us/home?forum=sqldisasterrecovery
In any case you'll need either physical or virtual shared storage. For FCI to host everything and witness disk and for AlwaysOn just for witness (AlwaysOn does replication between DAS on it's own).
Good luck :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

Local Storage on IPad and Iphone is missing IOS7

Hi,
I have a Jquery Mobile app working fine in IOS6, upgrading to IO7 on the Ipad and Iphone the app is crashing when returning lists of data that previously worked. Our app works exclusivley with the local storage code in all modern browers allowing offline usage. Seems like the IOS7 upgrade is disrupting this somehow. I
cannot see the Local Storage icon in the web developerm, I am expecting this.
I can load around 40 list items into JqueryMobile, after that Safari crashes and the Wed Developer disappears. Any thoughts welcome.
Harvey

This appears to be a known bug , which is REALLY annoying me. Whoevers idea it was to disable cookies by default should be shot! I'm still fumbling around trying to get this going, but its not prooving easy...
http://stackoverflow.com/questions/20160499/enable-cookies-for-ios-7-in-phonegap -build

Hyper-V Failover w/ Local Storage question

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