similar to: can I convert a linear thin pool to raid1?

Please don't use lvm thin for vm. In our hosting in Russia we have 100-150 vps on each node with lvm thin pool on ssd and have locks, slowdowns and other bad things because of COW. After we switching to qcow2 files on plain ssd ext4 fs and happy =). 2017-11-04 23:21 GMT+03:00 Jan Hutař <jhutar@redhat.com>: > Hello, > as usual, I'm few years behind trends so I have learned

Do you have some comparasion of IO performance on thin pool vs. qcow2 file on fs? In my case each VM would have its own thin volume. I just want to overcommit disk-space. Regards, Jan On 2017-11-07 13:16 +0300, Vasiliy Tolstov wrote: >Please don't use lvm thin for vm. In our hosting in Russia we have >100-150 vps on each node with lvm thin pool on ssd and have locks, >slowdowns

Hello, as usual, I'm few years behind trends so I have learned about LVM thin volumes recently and I especially like that your volumes can be "sparse" - that you can have 1TB thin volume on 250GB VG/thin pool. Is it somehow possible to use that with libvirt? I have found this post from 2014: https://www.redhat.com/archives/libvirt-users/2014-August/msg00010.html which says

Adding Paolo and Miroslav. On Sat, Apr 8, 2017 at 4:49 PM, Richard Landsman - Rimote <richard at rimote.nl > wrote: > Hello, > > I would really appreciate some help/guidance with this problem. First of > all sorry for the long message. I would file a bug, but do not know if it > is my fault, dm-cache, qemu or (probably) a combination of both. And i can > imagine some of

I?ve never had such situation and I don?t recall someone sharing something similar. Most probably it?s easier to remove the node from the TSP and re-add it.Of course , test the case in VMs just to validate that it?s possible to add a mode to a cluster with snapshots. I have a vague feeling that you will need to delete all snapshots. Best Regards,Strahil Nikolov? On Thursday, August 10, 2023, 4:36

On 20.06.2013 10:44, Michal Privoznik wrote: > On 20.06.2013 09:40, Александр wrote: >> В письме от Четверг, 20-июн-2013 09:15:14 Вы написали: >>> On 19.06.2013 21:24, Александр wrote: >>>> В письме от Среда, 19-июн-2013 09:35:27 пользователь Michal Privoznik >> написал: >>>>> On 18.06.2013 22:21, Александр wrote: >>>>>> В письме

good day, i am trying to create domain via virDomainDefineXML. and my program hanging, also i failed to caonnect to libvirt daemon with virt-manager after this, only killing libvirtd via SIGKILL and restarting it solveing hang (i mean after restart i able to connect with virt-manager), i using following domain xml <?xml version="1.0" encoding="UTF-8"?> <domain

В письме от Четверг, 20-июн-2013 13:25:06 пользователь Michal Privoznik написал: > On 20.06.2013 12:56, Alexandr wrote: > > On 20.06.2013 10:44, Michal Privoznik wrote: > >> On 20.06.2013 09:40, Александр wrote: > >>> В письме от Четверг, 20-июн-2013 09:15:14 Вы написали: > >>>> On 19.06.2013 21:24, Александр wrote: > >>>>> В письме

________________________________ From: Alaric Haag Sent: Tuesday, March 19, 2013 2:39 PM To: libvirt-users at redhat.com Subject: Storage pool created on the "wrong" vg Hello all, (Hopefully, I am posing this question to the correct list!) I seem to have mis-clicked through the creation of an LVM-based storage pool in virt-manager and it is using a volume group containing LVs

On 18.06.2013 07:14, Александр wrote: > good day, i am trying to create domain via virDomainDefineXML. and my program > hanging, also i failed to caonnect to libvirt daemon with virt-manager after > this, only killing libvirtd via SIGKILL and restarting it solveing hang (i > mean after restart i able to connect with virt-manager), i using following > domain xml > >

On 18.06.2013 22:21, Александр wrote: > В письме от Вторник, 18-июн-2013 12:10:41 пользователь Michal Privoznik > написал: >> On 18.06.2013 07:14, Александр wrote: >>> good day, i am trying to create domain via virDomainDefineXML. and my >>> program hanging, also i failed to caonnect to libvirt daemon with >>> virt-manager after this, only killing libvirtd

В письме от Вторник, 18-июн-2013 12:10:41 пользователь Michal Privoznik написал: > On 18.06.2013 07:14, Александр wrote: > > good day, i am trying to create domain via virDomainDefineXML. and my > > program hanging, also i failed to caonnect to libvirt daemon with > > virt-manager after this, only killing libvirtd via SIGKILL and restarting > > it solveing hang (i mean

Hello everyone, Anybody had the chance to test out this setup and reproduce the problem? I assumed it would be something that's used often these days and a solution would benefit a lot of users. If can be of any assistance please contact me. -- Met vriendelijke groet, Richard Landsman http://rimote.nl T: +31 (0)50 - 763 04 07 (ma-vr 9:00 tot 18:00) 24/7 bij storingen: +31 (0)6 - 4388

On 20.06.2013 12:56, Alexandr wrote: > On 20.06.2013 10:44, Michal Privoznik wrote: >> On 20.06.2013 09:40, Александр wrote: >>> В письме от Четверг, 20-июн-2013 09:15:14 Вы написали: >>>> On 19.06.2013 21:24, Александр wrote: >>>>> В письме от Среда, 19-июн-2013 09:35:27 пользователь Michal Privoznik >>> написал: >>>>>> On

Hello, I would really appreciate some help/guidance with this problem. First of all sorry for the long message. I would file a bug, but do not know if it is my fault, dm-cache, qemu or (probably) a combination of both. And i can imagine some of you have this setup up and running without problems (or maybe you think it works, just like i did, but it does not): PROBLEM LVM cache writeback

I'd like to announce the availability of the "tsne" package. It provides the T distributed Stocastic Neighbor Embedding algorithm by van der Maaten and Hinton: 1. http://ict.ewi.tudelft.nl/~lvandermaaten/t-SNE.html 2. L.J.P. van der Maaten and G.E. Hinton. Visualizing High-Dimensional Data Using t-SNE. Journal of Machine Learning Research 9(Nov):2579-2605, 2008. [

I'd like to announce the availability of the "tsne" package. It provides the T distributed Stocastic Neighbor Embedding algorithm by van der Maaten and Hinton: 1. http://ict.ewi.tudelft.nl/~lvandermaaten/t-SNE.html 2. L.J.P. van der Maaten and G.E. Hinton. Visualizing High-Dimensional Data Using t-SNE. Journal of Machine Learning Research 9(Nov):2579-2605, 2008. [

While updating a hypervisor, I'm getting the following errors printed to the terminal during rpm upgrade scripts.? The first line is printed 15 times, and GRUB prints a similar error at boot.? "vgck" doesn't seem to find any problems.? Does anyone have suggestions for diagnosing the issue? error: ../grub-core/disk/diskfilter.c:524:unknown node

Signed-off-by: Simon COURTOIS <scourtois at linagora.com> --- src/app/controllers/vm_controller.rb | 16 +++++++++++++ src/app/views/vm/edit_vmpool.rhtml | 39 ++++++++++++++++++++++++++++++++ src/app/views/vm/show.rhtml | 3 ++ src/public/images/icon_vmpool_11px.png | Bin 0 -> 542 bytes 4 files changed, 58 insertions(+), 0 deletions(-) create mode 100644

Signed-off-by: Simon COURTOIS <scourtois at linagora.com> --- src/app/controllers/vm_controller.rb | 16 ++++++++++++++ src/app/views/vm/edit_vmpool.rhtml | 36 ++++++++++++++++++++++++++++++++ src/app/views/vm/show.rhtml | 3 ++ src/public/images/icon_vmpool_11px.png | Bin 0 -> 542 bytes 4 files changed, 55 insertions(+), 0 deletions(-) create mode 100644