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Questions tagged [thin-provisioning]

48 questions
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taring vmdk files does not preserve thinness

we have NFS storage, where we store our backups.. we manipulate with them from linux machine where the nfs is also mounted.. So, for example thin provisioned thin.vmdk disk is on linux seen as thin.vmdk and thin-flat.vmdk. We want to archive and…
Jakub Žitný
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Export VM ESX Thin Provisionned

I have a question. I need to export a VM Thin Partionned. But the problem is that this VM is too big ... Regarding to VSPHERE client, it says that this VM is about 2TO used. But someone told me that when you have a VM set up to Thin Partition, when…
user13875125
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(QEMU) Setup Windows 10 VM on a thinly-provisioned LVM device with discards (a.k.a. trim)

I'm trying to set up a Windows 10 VM using QEMU and I want to use a thinly-provisioned LVM volume and be able to "retrim" the drive in Windows. I created the device with: -drive index=0,media=disk,if=virtio,format=raw,file=/dev/vg0/myvol, But when…
Daniel Santos
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fstrim is not functional after migrate to vmfs6 without reboot

I have Vmware esxi 6.5. Now I migrated some thin provisionied VMs to VMFS6. When I call fstrim /I can except that vmdk file will smaller, but without error in console - vmdk is not smaller. I must reboot every VM after vMotion to VMSF6. After it is…
Pavel
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How do you run lvm's thin_dump or thin_check? metadata can't be live, but then what option do you use?

I want to run thin_dump, and thin_check. They say they cannot be ran on live metadata. That's fine by me. The problem is I don't know how to make the metadata not live, while still being able to give thin_dump and thin_check an argument on what…
user1902689
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VM with thin hard drive how to reduce disk size after deleting files

I have a VM (ws 2012) with 1.5 TB thin provisioning HDD and it was nearly full (1.47 TB used space) i moved these files to 4X400 new VMD and now i have only 120 GB used space in the 1.5 TB HDD i reduced the partition size to 120 all the rest are…
Zaid Al-ANi
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LVM: Logical volumes mapped size much bigger than filesystem used disk space

In Proxmox we use LVM to create discs (logical volumes) for our VMs (LVM thin provisioning). Recently we found out our volume group is almost full even when all VM discs are almost empty. Problem is that some LVM partitions show much bigger mapped…
Martin Mystik Jonáš
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Server 2012 R2 - Features on Demand - role not actually being removed

This is for learning purposes: I'm running a Server r2 machine and I'm trying to remove feature WINS. I run uninstall-windowsfeature WINS -restart -remove, I then restart, and then run get-windowsfeature | where installstate -eq removed and I see…
user1330287
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Hyper-V 2012 R2: VM thinks disks are thin-provisioned

We are using Hyper-V 2012 R2 on a Windows Server 2012 R2 host. We have several VMs with multiple volumes (VHDX) which we initially set up as thin-provisioned (dynamically expanding). Later on, we converted them to fixed size VHDX due to performance…
user37077
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Why is my vSphere disk now thick provisioned?

I have a vSphere 5.0 VM that was created with entirely thin-provisioned disks (I don't have any other options when creating them). A year later, one of the disks is now no longer thin provisioned but is Thick Provision Eager Zeroed. I'm not licensed…
Andrew
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Windows 2008: re-use of deleted blocks on virtual "thin" disks

We use a StarWind SAN which has the concept of thin-provisioned disks that grow as needed. You can allocate a 4TB drive but it starts off tiny and grows as blocks are written to the virtual disk (via iSCSI). The virtual disk used for our main file…
Rob Nicholson
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Drobo Thin Provisioning: What happens when you run out of space?

I'm thinking about getting a Drobo S to add some storage on a Windows Server 2008 R2 box. The Drobo offers thin provisioning. While I will only have 4.5TB of space initially, I'd like to use thin provisioning to create a 16TB LUN. If the OS sees…
Brad
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On ESX, does a Ubuntu VM re-use free space in the VM, before expanding the virtual disk?

I have a thin-provisioned Ubuntu 18 VM on ESX 6 with one virtual disk that is using almost all the underlying physical disk (I have a new 4TB disk ordered to move to shortly). The VM filesystem is ext4 on LVM. So, if I deleted a large file or files…
KolonUK
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Disable thin provisioning (sparse files) in proxmox

I'm using Proxmox Virtual Environment to run few virtual machines. I use raw storage format and I need that the disk is fully pre allocated when created so it does not grow. The proxmox says that this is default behavior but I experience the…
Pavel Niedoba
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Shrinking overprovisioned thin disks

We have a VCenter with some data storages, one of them is 10 TB. The issue is that the former sysadmins created many VM's with thin provisioned disks of 8 TB. Right now, the provisioned storage is close to 100 TB and the real used space is below 100…
gsantovena
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