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List the available space in all cinder-volume?

asked 2014-06-02 06:15:10 -0600

ecerulm gravatar image

updated 2014-06-02 08:26:46 -0600

Let's say that I have a OpenStack Havana installation with a cinder-scheduler and cinder-volume. As an administrator I want to know how much space I have left for volumes. How can I find out?

Rephrasing the question, can I find out via CLI commands if there is a cinder-volume host in my installation that can hold a 1TB volume?

EDIT: Since @dbaxps mentions that it depends on the backend, I'll be more specific. Assume that the backend is NfsDriver. I want to find out via openstack API / CLI the space cinder can allocate (that would be the sum of the free space on the nfs_shares ).

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It depends on what kind of backend you selected for cinder. It may be LVM, GlusterFS and etc....

dbaxps gravatar imagedbaxps ( 2014-06-02 06:23:17 -0600 )edit

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answered 2015-03-09 04:27:12 -0600

msuchy gravatar image

Nope. It is on wish list of OpenStack team: https://bugs.launchpad.net/cinder/+bug/1380555

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answered 2014-06-02 08:34:12 -0600

dbaxps gravatar image

updated 2014-06-02 10:12:42 -0600

OK. Via CLI, you go to NFS Directory ( same GlusterDriver , just go to corresponding folder of Gluster Volume brick) , where cinder volumes reside.
Total space available
$ df -h .
Space have been used
$ du -m -s .

 Command `cinder list`  && `cinder show volume-id` will show you space allocated for every volume been created
   as list and detailed for particular volume.
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ok, so the information is not accesible from OpenStack APIs itself, is that what you mean? If you put that in the answer I'll accept it.

ecerulm gravatar imageecerulm ( 2014-06-02 08:48:07 -0600 )edit

I am not saying "is not accesible from OpenStack APIs itself". I answer as I can do that via standard CLI commands.

dbaxps gravatar imagedbaxps ( 2014-06-02 08:55:38 -0600 )edit

Ok but I meant OpenStack CLI (nova xxx, glance xxx, cinder xxx, etc) not just the shell. Thanks anyway, Let's wait to see if somebody knows a way to do it from OpenStack itself.

ecerulm gravatar imageecerulm ( 2014-06-02 10:01:04 -0600 )edit

I've updated answer with two cinder commands.

dbaxps gravatar imagedbaxps ( 2014-06-02 10:13:42 -0600 )edit
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answered 2019-02-11 02:09:47 -0600

The following command (got tip from a colleague) worked for me to get the used and total GBs of my volume storage:
openstack limits show --absolute --sort-column Name | grep Gigabytes
Hope it helps for the googlers finding this page.

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answered 2017-01-24 12:13:39 -0600

antoinetr3 gravatar image

I know this question is old but doesn't seem there's a straight answer for it. Here's how i find out how much available space is left on my cinder-volume.

The command is "sudo vgdisplay cinder-volumes" .. cinder-volumes is name of my cinder volume.

user1@Compute1:~$ sudo vgdisplay cinder-volumes --- Volume group --- VG Name cinder-volumes System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 22 VG Access read/write VG Status resizable MAX LV 0 Cur LV 5 Open LV 5 Max PV 0 Cur PV 1 Act PV 1 VG Size 3.64 TiB  <-- ACTUAL SIZE PE Size 4.00 MiB Total PE 953861 Alloc PE / Size 28416 / 111.00 GiB <-- SPACE ALLOCATED Free PE / Size 925445 / 3.53 TiB <-- SPACE AVAILABLE VG UUID bMX896-RO4S-4PuK-iJ11-vxWY-oFtp-pGdXTG

user1@Compute1:~$

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Asked: 2014-06-02 06:15:10 -0600

Seen: 5,389 times

Last updated: Jan 24 '17