Softaculous

Topic : Virtualizor virtio-iscsi

Posted By: Ahav on December 13, 2019, 10:04 pm

Hi,

Is there a way to create new KVM VMs with the virtio_scsi module loaded by default? The currently running virtio_blk does not support fstrim and the node has SSDs as storage.

Code
[root@my-server01 grub2]# fstrim /

fstrim: /: the discard operation is not supported

The layers are SSDs -> mdraid -> LVM -> Guest OS.

Let me know if you need any other info.

Thank you.

Posted By: jevingala on December 14, 2019, 9:48 am | Post: 1

Hi,

We are going to add support for fstrim soon.
For now, Virtualizor will not create vps disk with virtio_scsi .

-----------------------
Regards,
Virtualizor Team.
http://virtualizor.com/

Posted By: Ahav on December 14, 2019, 12:49 pm | Post: 2

Hi,

Do you have a roadmap for this? What is the timeline for making this happen? (1 month, 6 months, 2 years, etc.).

Also, do you plan on keeping the virtio_blk as the default module or do you want to change it to virtio_scsi?

From what I've found, the virtio_blk has discard enabled only in kernel 5.0:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d548e65904ae43b0637d200a2441fc94e0589c30

https://git.qemu.org/?p=qemu.git;a=commitdiff;h=37b06f8d46fe602e630e4

Thank you.

Posted By: Ahav on December 23, 2019, 7:53 pm | Post: 3

Anyone?

Posted By: Ahav on January 7, 2020, 6:06 am | Post: 4

Up.

Posted By: realrifla on March 25, 2021, 2:32 am | Post: 5

Any news on this?

Posted By: jevingala on March 25, 2021, 4:12 am | Post: 6

Hi,

Fstrim support was added in Virtualizor 3.0.3 and it would work automatically for KVM vpses created using virtio-scsi driver on thin-provisioned storage.

Edited by jevingala : March 25, 2021, 4:12 am

-----------------------
Regards,
Virtualizor Team.
http://virtualizor.com/

Posted By: realrifla on April 6, 2021, 10:24 am | Post: 7

Quote From : jevingala March 25, 2021, 4:12 am

Hi,

Fstrim support was added in Virtualizor 3.0.3 and it would work automatically for KVM vpses created using virtio-scsi driver on thin-provisioned storage.

Awesome to hear that! One question - is there a way to make virtio-scsi the default driver when creating new KVM guest?

Posted By: jevingala on April 6, 2021, 10:29 am | Post: 8

Hi,

You can have that set as default in plans and create vps using those plans.

-----------------------
Regards,
Virtualizor Team.
http://virtualizor.com/

Posted By: realrifla on April 6, 2021, 10:43 pm | Post: 9

Quote From : jevingala April 6, 2021, 10:29 am

Hi,

You can have that set as default in plans and create vps using those plans.

That did the trick, thanks.

There's one issue I'm not sure about, when I tested the virtio-scsi driver on CentOS 7 with ZFS Thin storage, it worked perfectly, when on KVM I deleted a big file, the volume was auto trimmed.

I'm now testing the Virtualizor on CentOS 8 and... it's not auto trimming anymore, is that because of CentOS8 or something else that I'm not aware about?

Posted By: realrifla on April 7, 2021, 12:22 am | Post: 10

Quote From : realrifla April 6, 2021, 10:43 pm

Quote From : jevingala April 6, 2021, 10:29 am

Hi,

You can have that set as default in plans and create vps using those plans.

Or it's working but the auto trim isn't instant, how often the auto trim runs ?

Posted By: realrifla on April 7, 2021, 3:55 am | Post: 11

Quote From : realrifla April 7, 2021, 12:22 am

Quote From : realrifla April 6, 2021, 10:43 pm

Quote From : jevingala April 6, 2021, 10:29 am

Hi,

You can have that set as default in plans and create vps using those plans.

Or it's working but the auto trim isn't instant, how often the auto trim runs ?

I've checked everything and it seems I've been testing with 'discard' enabled in KVM guest's /etc/fstab - that would explain the auto trim after deletion.

So, there's no auto-trim from the virtualizor node and the trim needs to be done on the KVM guest side. If I'm correct.

Posted By: jevingala on April 7, 2021, 7:23 am | Post: 12

Hi,

Cron is set to weekly : /etc/cron.weekly within vps, so it should work fine as it worked for your centos 7 vps.

-----------------------
Regards,
Virtualizor Team.
http://virtualizor.com/