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2019-04-08 00:54:53 -0500 获得奖牌  著名问题 (source)
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2018-11-21 09:51:24 -0500 评论回答 How does disk access work with instance backed by cinder volume.

Using KVM.

2018-11-21 09:48:09 -0500 获得奖牌  编辑 (source)
2018-11-21 09:47:01 -0500 评论问题 How does disk access work with instance backed by cinder volume.

KVM, Cinder with iSCSI over 10 gigabit network.

2018-11-21 00:07:53 -0500 问了问题 How does disk access work with instance backed by cinder volume.

Hi, I created a VM using horizon. I picked source as image and I set a volume size of 120GB.

When the VM runs the disk it is visible as /dev/vda and this disk is created on block storage correct?

So when this instance is running on the computer node, if it's a single disk, which part of it is running on the compute and which part is on the block storage? Or in this case it's all running on block storage?

But when reads/writes happen on the VM on the compute node are they not cached locally first and then written to the Cinder block storage?

Update 2018/11/21: Using KVM, Cinder with iSCSI on 10 Gigabit

2018-11-20 22:55:06 -0500 获得奖牌  组织者 (source)
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2014-01-30 09:52:06 -0500 问了问题 What do we mean by public and private ips?

Currently my network is at the office is setup with private ips of 10.0.0.xxx IPs.

I installed devstack on a 32 core server machine for testing. That machine is 10.0.0.123 all the openstack service are bound to that I.P

My network admin has alowed me to run instances on 10.0.0.22.xxx ranges. How do I change that? Right now I have instances create don 10.0.0.2 and 10.0.0.3 and can't access them....

2014-01-30 09:38:34 -0500 评论问题 ERROR: The server has either erred or is incapable of performing the requested operation. (HTTP 500)

I think brtfs on OpenSuse was causing plenty off issues. Anyways I installed devstack on Ubuntu 12 and it seems to be working fine...

2014-01-29 12:23:05 -0500 评论问题 ERROR: The server has either erred or is incapable of performing the requested operation. (HTTP 500)

It was but still wasn't connecting anyway I gave up on it for now...

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2014-01-28 16:30:30 -0500 问了问题 ERROR: The server has either erred or is incapable of performing the requested operation. (HTTP 500)

Followed all the steps until now for OpenSuse 13.1 Everything seems to have installed right but having problems starting the network services. Btw installing everything on a single box for proof of concept.

But when try to start a network service using:

nova network-create vmnet --fixed-range-v4=10.0.0.0/24 --bridge-interface=br100 --multi-host=True

Here is the nova.log

https://dl.dropboxusercontent.com/u/27413499/nova.log

2014-01-28 15:58:53 -0500 问了问题 Is the compute endpoint registration correct?

I'm at the endpoint registration for the compute node and the instructions state to run:

keystone endpoint-create \ --service-id=$(keystone service-list | awk '/ compute / {print $2}') \ --publicurl=http://controller:8774/v2/%(tenant_id)s \ --internalurl=http://controller:8774/v2/%(tenant_id)s \ --adminurl=http://controller:8774/v2/%(tenant_id)s

The output of the command is...

+-------------+-----------------------------------------+
|   Property  |                  Value                  |
+-------------+-----------------------------------------+
|   adminurl  | http://controller:8774/v2/%(tenant_id)s |
|      id     |     ca1a13483f5a4159a7cb2b84b89704ad    |
| internalurl | http://controller:8774/v2/%(tenant_id)s |
|  publicurl  | http://controller:8774/v2/%(tenant_id)s |
|    region   |                regionOne                |
|  service_id |     cfd20998eda04692bac6013c22c4b214    |
+-------------+-----------------------------------------+

Is tenant_id suposed to be replaced with something or is that how it is expected?