Hi Wido
Thank you. Yes, I only shrink it inside the VM. But still Cloudstack
volume shows 120GB and within the VM lsblk command shows that 120 GB
is available. Since I cannot shrink the volume, how do most providers
take care of this issue? I mean it would be awkward if a client see
they can have 120 GB available when they're paying for 60 GB, for
example.
On 9/4/23 15:45, Wido den Hollander wrote:
Op 04-09-2023 om 13:08 schreef Granwille Strauss:
Hi Wido
I mounted a live ISO to the VM, booted into the ISO and went into
recover mode, had to unmount the / partition of the VM, and then
proceed to resize it via parted and write changes. Rebooted via
and detatched the ISO and now VM shows 60 GB correctly. However,
in Cloudstack, still says the volume is 120 GB. But when I want to
shrink it to 60 GB, I get this error:
In this case you did not shrink the volume, but only the partition
and filesystem on the volume.
Failed to resize volume operation of volume UUID:
[eec8285e-8715-441b-b418-b71b231f1bab] due to - Unable to shrink
volumes of type QCOW2
QCOW2 volumes can't be reduced in size. So no, this is not a bug.
And yes, the VM is stopped when I try doing this. I now want to
confirm from the community, is this the expected behaviour or not?
It seems Wei doubted it. If not, that means I have a bug that need
to be looked at and further checked.
Wei is correct. QCOW2 can't be shrinked.
Wido
On 9/4/23 12:46, Wido den Hollander wrote:
Op 04/09/2023 om 09:18 schreef Granwille Strauss:
Thank you. Can you confirm if this behaviour is expected? Or am I
experiencing a bug?
What exactly? You did this resize manually outside the knowledge of
cloudstack, am I correct?
How did you do this live/recovery method?
Wido
On 9/4/23 09:00, Wido den Hollander wrote:
Op 04-09-2023 om 08:20 schreef Granwille Strauss:
Hi
I managed to resize the VM itself back to 60 GB via live/recovery
method. However, now in Cloudstack it still says the volume remains
120 GB and when I want to shrink it I am presented with the errors
from my previous reply. Is there a way around this? Such as making a
database change. Also, is this the expected behaviour for a KVM
host?
This is recorded in the table 'volumes'. If you decrease the size to
60GB there is should show properly.
Wido
On 9/2/23 11:22, Granwille Strauss wrote:
Hi Wei
It seems you're right you cannot shrink the volume in Cloudstack:
Failed to resize volume operation of volume UUID:
[eec8285e-8715-441b-b418-b71b231f1bab] due to - Unable to shrink
volumes of type QCOW2
Going from existing size of 128849018880 to size of 64424509440
would shrink the volume.Need to sign off by supplying the shrinkok
parameter with value of true.
On 9/2/23 10:37, Wei ZHOU wrote:
Hi Wido,
Does it work with kvm ?
my suggestion would be
- create a new vm with 60GB
- copy the data using `rsync`
-Wei
On Sat, 2 Sept 2023 at 08:25, Wido den Hollander<w...@widodh.nl>
wrote:
Hi,
Yes, you should make sure the filesystem and partitions are within
the
to be set new boundaries.
Once that's done you can shrink the volume.
I would recommend:
- Shrink EXT4 + Partitions to 59GB
- Shrink volume to 60GB
- Grow EXT4 + Partitions to 60GB
The step to 59GB is to prevent that by calc mistake you chip off the
last portion of your filesystem.
Wido
Op 01-09-2023 om 16:29 schreef Granwille Strauss:
Hi Guys
Anyone willing to assist me with a quick one. What's the best and
recommended way to shrink a VM volume via UI? The VM volume was
first 60
GB, we then expended it to 120 GB and increased it in the VM via
parted.
I now want to take it back to 60GB. How do I proceed? Do I first
shrink
the ext4 in the VM first then proceed to shrink the volume in
Cloudstack
UI by selecting also the "Shrink OK" option? Detailed steps would be
appreciated, please.
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