Hi Ovirt&KVM, Here is the details :- 1. Ovirt :- 3.4 2. VM :- Centos 6.5 3. VM Disk Partition :- Based on LVM 4. Base Datastorage :- Gluster I am able to expend the disk...but the disk expand doesn't touch the partition table..so after expand all the existing partition remain with the same disk size....now i need to manually create another partition and add it in to Volgroup and resize the logical volume... Thanks, Punit On Thu, Aug 28, 2014 at 3:27 PM, OvirtAndKvm <oVirt@goproject.info> wrote:
Punit,
What file system is your VM's partition, what operating system and version ?
A question to others, if the doco says "we support "disk resize" since 3.4", for what virtual disk type, and which operating systems and their partition types are supported by this. I would have believed you would needed to have used LVM and then add the new disk space as a new LUN, and map the new lun, while also using a file system that allows for expansion. Some file systems like XFS can be extended (i.e. grow) while being mounted. This is about the limit of my knowledge so if you know more, please let us know what is possible.
3. we support "disk resize" since 3.4 (iirc), which you can do post VM provisioning.
http://www.gnu.org/software/parted/manual/html_node/parted_31.html Grow partition 1, into the adjacent free space:
(parted) resize 1 0.063 874.9
http://geekpeek.net/resize-filesystem-fdisk-resize2fs/ http://www.linuxuser.co.uk/features/resize-your-disks-on-the-fly-with-lvm
http://docs.oracle.com/cd/E37670_01/E37355/html/ol_grow_xfs.html You can use the *xfs_growfs* command to increase the size of a mounted XFS file system if there is space on the underlying devices to accommodate the change.
http://www.ovirt.org/Features/Online_Virtual_Drive_Resize Features/Online Virtual Drive Resize QEMU-GA
- support for notifying the guest and updating the size of the visible disk: [Yet?] *To be integrated*
http://serverfault.com/questions/122042/kvm-online-disk-resize AFAIK, this is not possible -- you can add new disk images, and as you point out you could also add new images to an LVM volume, but in order to resize an active, bootable disk image you need to be able to shut it down and edit the partitions.
It is possible to move a Linux system between disks while it's running. The limitation is that you cannot alter *partitions* on a disk that has *partitions* in use.
To do this your root filesystem must be on an LVM, this often means that you have to have a separate boot filesystem (this is not, however, essential, it just makes things easier)
At Thursday, 28-08-2014 on 16:49 Shahar Havivi wrote:
Hi All,
Please help me to solve this problem...or suggest me any workaround ??
Thanks, Punit
On Wed, Aug 27, 2014 at 8:01 PM, Karli Sjöberg <Karli.Sjoberg@slu.se> wrote:
On Wed, 2014-08-27 at 19:52 +0800, Punit Dambiwal wrote:
Hi Itamar,
It's the same as i used and discussed in last reply...create the VM with 1GB virtual template and expand the disk size after deployment...but the problem here is disk will expand or resize...but it will not make any changes in the existing partition table..that means after expand disk all the existing partition will remain same....then you need to manual login in to server and make the changes with the help of fdisk and lvm commands..
I am looking for the way we can resize the disk...and at the same time when the disk will expand...it should be resize the partition
I think this is what you were after: "QEMU-GA
support for notifying the guest and updating the size of the
visible
disk: To be integrated "
So maybe you could post an RFE on that for "qemu-ga"? Help testing?
/K
Is the cloud-init...custom script can do this or not ??
You may be able to do that with cloud-init custom-script section, The following link will show you how to add a file to the client, you may write a code
On 28.08.14 11:05, Punit Dambiwal wrote: table... that change the partition table, you need to make the file executable and put it in a init section (such as /etc/init.d sections), the only problem is that it may be too late since cloud-init may be loaded after that phase... (so maybe other place...)
http://cloudinit.readthedocs.org/en/latest/topics/examples.html#writing-out-...
Another option is to set a command under this section:
http://cloudinit.readthedocs.org/en/latest/topics/examples.html#run-commands...
Shahar.
Thanks, Punit
On Wed, Aug 27, 2014 at 6:11 PM, Itamar Heim <iheim@redhat.com>
wrote:
On 08/27/2014 12:47 PM, Punit Dambiwal wrote:
Hi Itamar,
To edit the disk size are you referring this "Another way i got is create the VM with 1GB virtual template and expand
the
disk size after deployment...but the problem here is disk will expand...but it will not done any changes in the existing partition
table..that
means after expand disk you need to manual login in to server and make the changes with the help of fdisk and lvm commands..."
Or it's different then the upper one...please let me know how to perform this...if any screen shot you can provide for better understanding..
http://www.ovirt.org/Features/Online_Virtual_Drive_Resize adding derez for follow up questions
Thanks, Punit
On Wed, Aug 27, 2014 at 5:15 PM, Itamar Heim <iheim@redhat.com
<mailto:iheim@redhat.com>> wrote:
On 08/27/2014 12:08 PM, Punit Dambiwal wrote:
Hi Itamar,
Thanks for the update....Yes.. i want to create different size VM with the same OS template...
------------ 3. we support "disk resize" since 3.4 (iirc), which you can do post VM provisioning.
considering #3, then #1 should be easy to support as well these days. please open an RFE. ------------
Could you please more elaborate point number 3...how to use it..i will go with this one ...
iirc, you just need to edit the disk size when vm is down or up (for up, only for specific disk interfaces,
virtio-blk,
not ide, iirc)
Thanks, Punit
On Wed, Aug 27, 2014 at 4:37 PM, Itamar Heim <iheim@redhat.com <mailto:iheim@redhat.com>
<mailto:iheim@redhat.com <mailto:iheim@redhat.com>>> wrote:
On 08/27/2014 04:18 AM, Punit Dambiwal wrote:
Hi Michal,
I want to deploy the VM with the template but the problem is in ovirt when you deploy the VM by template
it
copy the whole image(even thin or thick disk)...like if i have 40GB virtual size (actual size 1GB) disk....it will copy the whole 40GB to provision the virtual machine....so if i want to deploy 10 VM simultaneous then it will copy 4TB data and take long time to provision....
I want the way i can make the template with small size....and once i choose to create the virtual machine with 40GB...the VM deploy with the small template on the 40GB disk...
is
it possible with ovirt.. ??
so you want to provision a VM with a different disk size than template. good point. some thoughts: 1. for thinly provisioned (qcow2) - its COW, hence the same size. 2. for clone - actually, no reason shouldn't be supported easily. 3. we support "disk resize" since 3.4 (iirc), which you can do post VM provisioning.
considering #3, then #1 should be easy
to
support as well these days. please open an RFE.
Thanks, Punit
On Tue, Aug 26, 2014 at 9:01 PM, Michal Skrivanek <michal.skrivanek@redhat.com <mailto:michal.skrivanek@redhat.com> <mailto:
michal.skrivanek@__redhat.com
<mailto:michal.skrivanek@redhat.com>>
<mailto:michal.skrivanek@ <mailto:michal.skrivanek@>__red__hat.com <http://redhat.com>
<mailto:
michal.skrivanek@__redhat.com
<mailto:michal.skrivanek@redhat.com>>>>
wrote:
On Aug 26, 2014, at 12:01 , Punit Dambiwal <hypunit@gmail.com <mailto:hypunit@gmail.com> <mailto:hypunit@gmail.com <mailto:hypunit@gmail.com>> <mailto:hypunit@gmail.com <mailto:hypunit@gmail.com> <mailto:hypunit@gmail.com <mailto:hypunit@gmail.com>>>> wrote:
> Hi Michal, > > 2. I find disk size can not modify at the time of VM provisioning,is there any way
to
modify the VM disk size ?? > > well, not really, AFAIK. > create another disk, move your data, remove the original Or create a bigger thin
provisioned
disk at the beginning... > > I didn't understand the mean...i can create the another disk...it's ok...but how to
move
the data from the existing disk to new disk at the time of the VM deployment... ?? is there any way to move the data.. ?? Hi,
You would have to do that
inside
the guest…the same way as you would do it on real hardware…mount both disks, move the relevant data not trivial and not automated
> > Another question is there
any
way to mount the img like i will create the VM with blank template with my preferred disk size and leter on install the OS through any OS template ??? i know i can install the OS through CD-ISO but i don't want the manual installation…
so you want to have a preinstalled OS…so how did you want to use it? I probably don't understand
what
are you trying to achieve. Anything else than having a Template with OS and you deploy VMs from that….you need to change disk sizes for each such VM? Could it be done by adding an additional disk?
Thanks, michal
> > Thanks, > Punit > > > On Tue, Aug 26, 2014 at 5:51 PM, Michal Skrivanek <michal.skrivanek@redhat.com <mailto:michal.skrivanek@redhat.com> <mailto:
michal.skrivanek@__redhat.com
<mailto:michal.skrivanek@redhat.com>>
<mailto:michal.skrivanek@ <mailto:michal.skrivanek@>__red__hat.com <http://redhat.com>
<mailto:
michal.skrivanek@__redhat.com
<mailto:michal.skrivanek@redhat.com>>>>
wrote: > > On Aug 26, 2014, at 05:26 , Punit Dambiwal <hypunit@gmail.com <mailto:hypunit@gmail.com> <mailto:hypunit@gmail.com <mailto:hypunit@gmail.com>>
<mailto:hypunit@gmail.com <mailto:hypunit@gmail.com> <mailto:hypunit@gmail.com
<mailto:hypunit@gmail.com>>>> wrote: > > > Hi All, > > > > I have some questions regarding the VM deployment through OS template... > > > > 1. I have imported centos template from openstack glance (the actual size of the template is 16GB but used is 1GB)...now my question is if i deploy the new VM with this template,the process will copy the whole 16GB or
just
1 GB to create the new VM ?? > > if you deploy with thin provisioned disks it should be 1GB > > > > > 2. I find disk size can
not
modify at the time of VM provisioning,is there any way
to
modify the VM disk size ?? > > well, not really, AFAIK. > create another disk, move your data, remove the original. > Or create a bigger thin provisioned disk at the beginning > > > > > Thanks, > > Punit > > > > > > On Mon, Aug 25, 2014 at 5:42 PM, Punit Dambiwal <hypunit@gmail.com <mailto:hypunit@gmail.com> <mailto:hypunit@gmail.com <mailto:hypunit@gmail.com>>
<mailto:hypunit@gmail.com <mailto:hypunit@gmail.com>
<mailto:hypunit@gmail.com <mailto:hypunit@gmail.com>>>> wrote: > > Hi All, > > > > I have some questions regarding the VM deployment through OS template... > > > > 1. I have imported centos template from openstack glance (the actual size of the template is 16GB but used is 1GB)...now my question is if i deploy the new VM with this template,the process will copy the whole 16GB or
just
1 GB to create the new VM ?? > > > > 2. I find disk size can
not
modify at the time of VM provisioning,is there any way
to
modify the VM disk size ?? > > > > Thanks, > > Punit > > > >
--
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