Ask Your Question
2

Resizing Ephemeral Disk

asked 2013-05-27 17:18:36 -0500

6-jake gravatar image

Hello all,

I just tried to resize one of my instances to a smaller flavor and found that the ephemeral disk was never resized.

[root@controller ~]# nova flavor-list|grep small | 9cc4156f-b4ac-47a4-a782-0c4f1c3dd20a | m1.small | 1024 | 20 | 20 | | 1 | 1.0 | True | {} | | e8e0e0eb-20e2-4491-8c7c-d63d447a2236 | m1.small.double | 1024 | 20 | 40 | | 1 | 1.0 | True | {} |

When resizing from m1.small.double to m1.small, /dev/vdb is still 40GB. Is this an error or does Nova not resize these intentionally?

If Nova doesn't, is there anyway I can force it to resize? If it won't resize down, will it resize up at least?

edit retag flag offensive close merge delete

2 answers

Sort by ยป oldest newest most voted
0

answered 2013-05-27 18:34:17 -0500

6-jake gravatar image

Turns out that it'll resize up, just not down. Is there anyway I can force it to resize down (or do it manually)?

edit flag offensive delete link more
0

answered 2013-05-28 15:07:19 -0500

patrickvinas gravatar image

On your compute node, the disk image is stored at /var/lib/nova/instances/<instance id="">/disk (or whatever your state_path option specifies in your nova.conf). You could try resizing that image with "sudo kvm-img resize ... ". Make sure to power down the VM first - and you may have to update the database manually, to keep your disk usage reporting (and quota usage) accurate.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Get to know Ask OpenStack

Resources for moderators

Question Tools

1 follower

Stats

Asked: 2013-05-27 17:18:36 -0500

Seen: 386 times

Last updated: May 28 '13