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Mar
12
comment Slow transfer speeds between Hyper V guest and host
So how does Samba figure in?
Mar
10
comment Why would a Hyper-V VHD still show 100% disk space used after adding 20 Gig?
Actually Joe answered first. I just thought a little more detail might help people understand.
Feb
5
comment Is it possible to change the location of the *.avhdx files in Hyper-V
Bassebus, you're misunderstanding what an AVHDX file is. It's the live file in which new writes occur. Neither the VHDX nor the AVHDX is really "the checkpoint." When you take a checkpoint, the VHDX is made read-only and new writes are written to the AVHDX. If you delete the checkpoint, the new reads will be reflected into the VHDX and it is made read/write again. Even while the checkpoint exists, reads may come from either the AVHDX or, if the block hasn't been written since the checkpoint, the VHDX.
Dec
9
comment How does Hyper-V Replica Initial replication from Existing VM works?
That's fine. Mark it any way you like. Google me if you want to know where I get my information.
Nov
25
comment Questions about a Scale-Out File server cluster setup
Ferryk, imagine somebody came to you and asked "How should I stay comfortable while standing on my head next to a comfortable chair, but remember that I'm only standing on my head for a learning experience?" Most people would answer "Just sit down in the chair. You'll have learned all you need to know."
Nov
17
comment Questions about a Scale-Out File server cluster setup
What's the point in the SOFS if you have a SAN? Why not just attach the storage to all the compute nodes directly, using all 6 machines for computation?
Apr
22
comment Hyper-V Manager shows 3 sockets/NUMA nodes available but there are only 2
By default, the VM will match the physical machine. I doubt, however, this is how his physical machine is built. I suspect somebody played with the values in the settings.
Apr
22
comment Hyper-V Manager shows 3 sockets/NUMA nodes available but there are only 2
Respectfully, this answer is just speculation, and it's not correct. See my response to the question.
Feb
25
comment Is it possible to run production machines on a replication target?
Actually, the replication target will see more or less as many writes to its disks as the primary host saw. So it's not just network bandwidth that gets consumed. You need enough storage throughput, too.
Feb
9
comment File Sharing using Hyper-V Shared VHDX
Whether a SAN is turning a pile of disks into a volume or whether that's done with Storage Spaces is of no particular relevance to this discussion. My point is that you will be much happier with a file server.
Feb
8
comment File Sharing using Hyper-V Shared VHDX
The thing that you really need to know is that CSV works by using SMB (the file server protocol) to move data whenever the node in question doesn't own it. So joining several computers together with CSV basically does the same thing as a file server, except in one special situation: When you have a really big file that is exclusively owned by one node, that node can read and write to it directly, provided that the file isn't being changed in size -- i.e. the data in it is being re-written. This is exactly what Hyper-V and SQL Server do. File servers are really good at small files.
Feb
6
comment File Sharing using Hyper-V Shared VHDX
If you create a guest cluster and put CSVFS on top of it, then all the members of that guest cluster will see that (virtual) disk as a local disk, and they will all share it, seeing the files on that disk symmetrically and safely. But so what? The only point in doing that is so that you can run a Scale-Out File Server on top of that, or a SQL server on top of that. If there was any other purpose, then you'd be better served by just giving the VHD to a single VM and using that VM as a file server.
Feb
6
comment File Sharing using Hyper-V Shared VHDX
Yes, I am. Your link is a cookbook for creating a cluster of guest VMs running Windows, but there are other possible uses, all of a similar nature.
Jun
4
comment Dell VRTX - slow cluster shared storage
Yes, that's why I made a distinction between local caching and coherent caching.
Jun
3
comment Dell VRTX - slow cluster shared storage
If you actually did turn on local caching in the controllers, that would invalidate the cluster file system that you're trying to use, which is probably why you're not seeing the option to do it. If you want to use CSV, any caching has to be coherent across all the hosts that have access to the volume.
May
15
comment Convert Folders to VHD file
If your files are corrupted, then they'll still be corrupted when you convert the volume to a VHD. If they're not corrupted, then ROBOCOPY will work nicely.
May
15
comment Restoring a VM from a backed up snapshot in Windows Server 2008R2
No. It can be backed up while it's running. If it has the Backup Integration Component installed within the VM, the VM will actually keep running through the whole process. If not, it's is paused briefly.
May
13
comment Restoring a VM from a backed up snapshot in Windows Server 2008R2
I think that you missed my point a little. Even in Server 2008R2, when you ask for a backup of a VM (which very much does exist as a feature) what it actually does is create a snapshot of the VM and then allow you to copy that snapshot to other media. It just doesn't label it a "snapshot." It's labeled as a "backup."
Apr
28
comment reached the maximum partitions on my virtual machine
And why are you creating a new partition when you do extend the disk, rather than just extending an existing file system?
Mar
24
comment How to exclude VHDX disk from snapshots on Hyper-v
No. While the VM is powered off, there is no memory assigned to it. Of course, if your VM is powered off, then the file systems have been shut down cleanly and there's no danger of corruption. If you wanted to exclude a VHD from a snapshot while the VM was powered off, you could remove it, take the snapshot, and re-add it. (I know that you'd like that to be one step, but I don't have a better suggestion. It would be a single line of PowerShell code if that's any condolence.)