cloud_ruiy_个人页

no protocol specified

基于vncserver安装oracle or oracle RAC时 以root账号运行xhost + 在切换到grid or oracle安装oracle database file or clusterWare

oracle rac ha

ha，仅只是在操作系统层面进行数据库的监控和管理，一般只针对单实例数据库使用。优点是管理方便，应用开发方便（方便了开发商）；工程投入较小。缺点是，具有所有单实例数据库的缺点：如：容错能力差，续航能力差，用户容量小等等问题。

nfs error

mount -t nfs 10.173.55.154:/oradata /oradatamount: wrong fs type, bad option, bad superblock on 10.173.

passwordauthentication yes

ssh ip disconnected:no supported authentication methods available(server sent:publickey,gssapi-keyex,gssapi-with-mic) /etc/ssh/sshd_configPasswordAu...

oracle 11g RAC ocfs2

http://oracle-base.com/articles/linux/ocfs2-on-linux.php http://oracle-base.com/articles/11g/oracle-db-11gr2-rac-installation-on-linux-using-nfs.

Oracle 11g RAC database on ASM, ACFS or OCFS2

I see a lot of questions on shared file systems that can be used when people move from single instance to Oracle RAC database and Grid Infrastructure.

CentOS ips bonding

centos ip bonding 一个网卡多个ips,多个网口一个ip1,配置一个网卡多ips的情况cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:0DEVICE="eth...

Oracle 11g RAC features

oracle 11g r2 RAC提供了以下功能： 高可用：shared-everything 模式保证了单节点的故障不会停止服务，集群中的其他节点将快速接管 可扩展性：多节点分担负载，可以提供远超单机数据库能提供的处理能力。

openStack 王者归来之 trivial matters

 tips:制作大部分cloud platforms img准备工作.  http://www.pubyun.com/blog/openstack/%E4%BB%80%E4%B9%88%E6%98%AFopenstack%E7%9A%84-metadata/ www.

openstack windows 2008 img

1,制作镜像主机pre Env yum -y install qemu-img virt-install libvirt 2,配置bridge

ruiy_ocfs2

http://docs.oracle.com/cd/E37670_01/E37355/html/ol_instcfg_ocfs2.html cd /etc/yum.repos.d # wget --no-check-certificate https://public-yum.

aliyun 镜像

[epel]name=Extra Packages for Enterprise Linux 6 - $basearchbaseurl=http://mirrors.aliyun.com/epel/6/$basearch        http://mirrors.

aliyun opts 集锦

,aliyun 使用数据盘(aliyun新增数据盘使用,创建vg,aliyun 镜像系统本身未使用lvm-vg-lv) 1.1直接挂载文件系统 较易,不做分析 http://help.aliyun.

kvm 存储

1,virt-install --connect qemu:///system --name web01_lvm --ram 1024 --vcpus=1 --disk=/dev/vg_lvm/web01-lvm --network bridge:br0 --accelerate --cdrom /iso/CentOS-6.

centos 磁盘扩容,新建lv

1,扩容已有lvm 上的lv 1.1 新建pv -->　　pvcreate /dev/sd* 1.2 把新增的pv添加到lvm -->vgextend vg_ruiy /dev/sd* 1.3 查看添加pv后的lvm --> vgdisplay -v vg_ruiy 1.

openStack windows2008 centos6.* img

1,下载 windows2008 系统iso介质包 http://download.microsoft.com/download/F/3/8/F384E78B-8F1D-42A6-A308-63E45060E823/7601.

openStack icehouse for centos6.4 production Env 实战

production Env brief Overview: Management Node:  　　 　　controller.cc　　10.114.100.115 Neutron Network Node:  　　network.

openStack error infos 调试

glance image-create --name "RuiCheck" --disk-format qcow2 --container-format bare --is-public True --progress                              ] 0%Error communicating with http://ruiy.

iptables 规则预设置为新centos系统

1,新os iptables预设置脚本

ubuntu openStack icehouse dashboard theme自定义

1,ubuntu openStack 语言包locate 2,/usr/share/openstack-dashboard-ubuntu-theme/static/ubuntu/img/favicon-ubuntu.

linux c in common use function reference manual

End User License Agreement   guarantees or warranties,大战前得磨刀!!!!! Tips:C Funcs Chk header Modules! Characters of the test piece(on the street sta...

openStack centos6.4

http://repos.fedorapeople.org/repos/openstack/openstack-icehouse/epel-6/repodata/repomd.xml: [Errno 14] problem making ssl connection yum --disablere...

ubuntu 常用生产环境部署配置测试调优

1,ubuntu monogdb 安装配置   2,ubuntu jdk1.7,tomcat7安装   3,ubuntu LAMP部署   4,mongodb 远程热备份及恢复 使用自带的mongodump和mongorestore工具 mongodump -h dbhost -d ...

openStack juno for ubuntu12-04

1,pwgen(openssl rand -hex 10) some Open-Stack services add a root wrapper to sudo that can interfere with security policies  (Mirantis openStack Ce...

ubuntu openstack

https://wiki.ubuntu.com/ServerTeam/CloudArchive/sudo add-apt-repository cloud-archive:junoLong Term Support How to Enable and Use The Cloud Tools archive is only supported on Ubuntu 12.

cluster maintain manager Software群集管理软件

1,ocfs2 2,crmsh(cluster management shell,)==crm shell [pacemaker OpenAIS,heartbeat,corosync,crmsh] 3,开源的ceph pk RedHat Gluster crm-moncorosync-cfg...

Mirantis Certification summary

preface Mirantis Certification (MCA100 )summary roughly question types handy remain by Ruiy! Minimum Pass Score: 70% Language: EnglishPrice:...

mirantis cert

with no vendor specificity and/or proprietary implementations,没有供应商的特异性和/或专有的实现 https://training.mirantis.

openStack openSource CloudComputing

,OpenStack a few Core Compontents integration with openStack-keystone Identity service1.1,user-createkeystone user-create --name --pass --email1.

zzbank oneOpencloud Env linuxaix6.1 interactiveMaintain(nfs,aix genintall基于系统iso光盘,aix6.1 puppet-Agent,Cent6.4 puppetServer,agent time no syn case Er)

1,puppet--server,Client,Agent time no syn case eror puppet agent --server frontend -terr: Could not request certificate: execution expiredExiting; fa...

openStack core service Components Ins shell scripts and simple provision

will to be announced,functional testing,tuning,debuging.....,Enthusiastic audience Please to wait patiently;

openStack deep dive,Retake Policy

Method of Payment: visa MasterCard American Express Discover

openStack开源云repo db local or on-line 实战部署之Ruiy王者归来

preface/pre,获取OpenStack核心模块组件及其子组件包(当前仅针对centos6*)及其依赖包 eg,picture 1,use these credentials with the Identity Service,auth mode for openstack use o...

rdo(remote data objects) repo openstack icehouse

problem making ssl connection Error: Cannot retrieve repository metadata (repomd.xml) for repository: openstac                                      ...

one Infos

Backend Server is still running (PID:). Please try 'euc-server stop' first. (原因很简单,进程控制脚本无restart函数功能,程序异常挂机,再用start命令启动进程,而之前由于异常关闭进程,未能清除进程的pid,因此再此...

linux内核参数调优,缓冲区调整,tcp/udp连接管理,保持,释放优化,gossary,terms

changing a readonly file (linu single user mode) 执行mount -o remount rw -t ext3 / 让根文件系统重新mount成读写,你就可以自由编辑整个文件系统了 /etc/kinittab or /etc/rc.

iptsbles及磁盘扩容

如果你的IPTABLES基础知识还不了解,建议先去看看。   们来配置一个filter表的防火墙   1、查看本机关于IPTABLES的设置情况   [root@tp ~]# iptables -L -n   Chain INPUT (policy ACCEPT)   targe...

linux 磁盘空间扩容 vg(+pv) lv(+空间) lv(缩减磁盘空间)

preFace 　　APP scenario description: 当你未能合理的规划存储时,在后期的维护工作中可能会涉及的存储的 再规划(eg,某一个 or 数个App 对某一个lv 即挂载点写BigData,你的那个lv的挂载点便会很快就没空间了,但是值得注意的是,你的另外的一个lv的挂...

ceph_APP Funcs chkactual combat

1,

libvirt C-API

1,warming-up Specifying URIs to libVirt;name parameter to virConnectOpen or          virConnectOpenReadOnlyvirConnectPtr conn = virConnectOpenReadOnly ("test:///default");/etc/libvirt/libvirt.

extend vg(pv,lv)use HotPlug Storage PV for VMI(ECC Env)

Preface: 　　前期存储未规划好,业务快速扩展,数据高安全需求(异地,More one copy),需求多多?NM干着干着活就会时不时的坑爹起来了!particularly Real Production Env、、、、 ,在VMware中测试新添加物理存储媒介PV,extend LVM空...

openNebula images

libVirt APIs uris (storage,hypervisors)drivers terminologies,glossary xml VMI format

kvm中运行kvm

如何在 KVM 虚拟机上运行 KVM       上次讨论了如何在 VMware ESXi 虚拟机上运行 KVM 问题，前不久有读者想 “在 kvm 上面创建个虚拟机安装 rackspace 的 openstack” 问到 “如何开启虚拟机上的 CPU VT 功能以便在 KVM 上运行 KVM”，又是一个嵌套应用虚拟机的问题：在 KVM 虚拟机上运行 KVM 虚拟机。

umount.nfs device busy day virsh extend diskSpace, attachDisk

KVM中linux虚拟机的硬盘添加方法   最近虚拟机中运行的东西比较多，很多。而刚启动的时候虚拟机分配的磁盘比较少，随着日志还有平时的上传文件的积累，磁盘空间报警了。网上查了下资料，自己也做了下实验。

ultravnc

virsh attach-disk tigervnc-server,vnc-server 1、安装服务 [plain] view plaincopy yum install tigervnc-server     名字有点怪哦，CentOS5前叫vnc-ser...

openNebula dubug

lowest common denominator convenient way to manage virtual machines sudo mount 10.192.36.4:/srv/cloud/eucalyptus/var/ /srv/cloud/eucalyptus/var/ ...

maintenance ShellScripts

1、Linux挂载Winodws共享文件夹 2、查看http的并发请求数及其TCP连接状态： 3、用tcpdump嗅探80端口的访问看看谁最高 4、统计/var/log/下文件个数 5、查看当前系统每IP连接数 6、shell下32位随机密码生成 7、统计出apache的access.

virsh VMI deploy data serial xml

one-116        1                        1024                524288                        hvm                pygrub                           ...

cloud computing platform,virtual authentication encryption

Distributed Management Task Forcevirtual Ethernet port aggregatorencryption,authenticating,local access control:Transport Layer SecuritySimple Authent...