zhanghui9700

#fio 是测试磁盘性能的最佳工具：

#1、测试顺序读性能
fio --filename=/home/test -iodepth=64 -ioengine=libaio --direct=1 --rw=read --bs=1m --size=2g --numjobs=4 --runtime=10 --group_reporting --name=test-read

#2、测试顺序写性能
fio -filename=/home/test -iodepth=64 -ioengine=libaio -direct=1 -rw=write -bs=1m -size=2g -numjobs=4 -runtime=20 -group_reporting -name=test-write

#3、测试随机读性能
fio -filename=/home/test -iodepth=64 -ioengine=libaio -direct=1 -rw=randread -bs=4k -size=2G -numjobs=64 -runtime=20 -group_reporting -name=test-rand-read

zhanghui9700

#!/usr/bin/env python
#-*-coding=utf-8-*-


import hashlib
import sys


def chunkreadable(iter, chunk_size=65536):
    """

zhanghui9700

mv /var/lib/nova/instances/instance-00000026 /var/lib/nova/instances/instance-00000026_resize
mkdir -p /var/lib/nova/instances/instance-00000026

qemu-img convert -f qcow2 -O qcow2 /var/lib/nova/instances/instance-00000026_resize/disk /var/lib/nova/instances/instance-00000026_resize/disk_rbase
mv /var/lib/nova/instances/instance-00000026_resize/disk_rbase /var/lib/nova/instances/instance-00000026/disk

qemu-img convert -f qcow2 -O qcow2 /var/lib/nova/instances/instance-00000026_resize/disk.local /var/lib/nova/instances/instance-00000026_resize/disk.local_rbase
mv /var/lib/nova/instances/instance-00000026_resize/disk.local_rbase /var/lib/nova/instances/instance-00000026/disk.local

finish_resize:

zhanghui9700

# -*- coding: utf-8 -*-

import re
import socket

                                                                                                                                                                                         
def get_localhost_ip():
    """
    Returns IP address of localhost.
    """

zhanghui9700

#!/usr/bin/python

import os, sys 

try:
    import packstack
except ImportError:
    # packstack isn't installed, running from source checkout
    sys.path.insert(0, os.path.join(os.path.split(sys.argv[0])[0], ".."))
    import packstack

zhanghui9700

== Initial ==

On controller node (192.168.122.163):

  $ yum install openstack-keystone openstack-utils dnsmasq-utils -y
  $ yum install openstack-glance openstack-cinder openstack-neutron \
    openstack-neutron-openvswitch -y
  $ yum install openstack-nova -y

On compute (192.168.122.100):

zhanghui9700

    expected_signature = hmac.new(
        CONF.neutron_metadata_proxy_shared_secret,
        instance_id,
        hashlib.sha256).hexdigest()
        
    # grep shared_secret /etc/nova/nova.conf
    neutron_metadata_proxy_shared_secret=deadbeef2eb84d8d
    
    Python 2.7.5 (default, Nov 12 2013, 16:18:42) 
    [GCC 4.8.2 20131017 (Red Hat 4.8.2-1)] on linux2

zhanghui9700

---
##prapare to install
    # for all nodes
    sudo useradd -d /home/ceph -m ceph
    sudo passwd ceph
    echo "ceph ALL = (root) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/ceph
    sudo chmod 0440 /etc/sudoers.d/ceph
 
##admin-node node(ceph and root)
    ssh-keygen

zhanghui9700

syntax on
set tabstop=4
set softtabstop=4
set shiftwidth=4
set nu
set autoindent
set laststatus=2
set list listchars=tab:>-,trail:-
set hlsearch
set smartindent

zhanghui9700

http://blog.csdn.net/k_james/article/details/12994145
 
VM1: 192.168.1.11
VM2: 192.168.1.13
VIP: 192.168.1.201
 
VM1: /etc/keepalived/keepalived.conf
vrrp_instance VI_NODE {
 state MASTER
 interface eth2