Discard Win Client on Cephs

[maydo]

Hi,

after moving a win 10 client from P2V, i need to get rid of some unused space on the client.
Guest Partition is cleaned up and there is some large unused space



running on a 4 nodes cluster with cephs rbd, latest version

root@pve11:~# pveversion
pve-manager/6.2-15/48bd51b6 (running kernel: 5.4.65-1-pve)

vm config
qm config 117
balloon: 8000
bios: ovmf
boot: dcn
bootdisk: scsi0
cores: 4
efidisk0: pool2:vm-117-disk-1,size=128K
ide2: none,media=cdrom
memory: 16000
name: dell2015
net0: virtio=5E:4D2:05:80:20,bridge=vmbr0,firewall=1
numa: 0
ostype: win10
scsi0: pool2:vm-117-disk-0,discard=on,size=1002587M
scsihw: virtio-scsi-pci
smbios1: uuid=1e2d36f2-e752-40bc-ad8f-cbf71c7c7531
sockets: 2
vmgenid: b344d232-ebe9-4424-a637-5227e88c66b5

Using Virtio scsi controller with discard enabled on scsi disk

I have tried re-adding disk, on guest side maintenance mode etc,.
discard is not working

there must be something im doing wrong
any ideas ?

 

[Alwin]

scsi0: pool2:vm-117-disk-0,discard=on,size=1002587M

You may need to run fsutil behavior set DisableDeleteNotify 0 on the Win10 machine. Depending on previous system, Windows might not have activated TRIM.

 

[maydo]

i have checked this

You may need to run fsutil behavior set DisableDeleteNotify 0 on the Win10 machine

i have checked this multiple times

PS C:\WINDOWS\system32> fsutil behavior query DisableDeleteNotify
NTFS DisableDeleteNotify = 0 (Deaktiviert)
ReFS DisableDeleteNotify = 0 (Deaktiviert)
PS C:\WINDOWS\system32> fsutil behavior set DisableDeleteNotify 0
NTFS DisableDeleteNotify = 0 (Deaktiviert)
PS C:\WINDOWS\system32> fsutil behavior query DisableDeleteNotify
NTFS DisableDeleteNotify = 0 (Deaktiviert)
ReFS DisableDeleteNotify = 0 (Deaktiviert)

Im a lil confused about the output "Deaktiviert" this means not active (german)

 

[spirit]

on windows, you need to use "optimise disk" gui tool to retreive disk space. (It's like the trim tools).
It's also providing a schedule task configuration;