openSource clouds

学习当前较主流的开源云基础设施管理软件by Ruiy summarize publish;

　　我擦,有不时候Ruiy干事也就那吊风格,啥事也就那么随口一说,你们太sensitivity,同网络延迟对存储的性能依赖一样,貌似还有过之而无不及;

　　open source cloud computing(openStack,cloudStack,openNebula,Eucalyptus)及paas/saas/iass于2014/05/24

　　running mechanism;

熟悉了当前打多少主流的云 管理软件知几乎所有的 Management front-end server相关的存储数据一般都是存储在mysql中,也些原因是在3~4年前mysql是真的很不错;

均从架构角度分析,思考之 public/private/hybrid LD HA cloud computing env;

1,cloudStack(先带这说说优化高可用部署措施,分离存储,多mgmt 做好Mysql DB(database replication))

community maintained package repositories

configuration of the data-center and the setup of the network, storage and hypervisors
small-scale test and trial,production deployments

diagram illustrates network architecture(topology) small-scale CloudStack deployment

firewall provides a connection to the Internet. The firewall is configured in NAT mode. The firewall forwards
HTTP requests and API calls from the Internet to the Management Server.

layer-2 switch connects all physical servers and storage

pod Large-Scale Redundant for production;

使用虚拟路由冗余协议virtual router redundancy protocol(VRRP)

firewalls provide the following functions:

front-end LD(load balancers) + HA(high avaiable)

Storage protocols such as iSCSI are sensitive
to network delays 存储协议对网络延迟很敏感;

多mgmt(manage/ment)

MySQL DB(database replication) will be deployed to enable disaster recovery

failover and load balance between separate storage networks

选择实施适合你的生产环节的hypervisor

supports many popular hypervisors

bare metal 电脑裸机,无系统,无应用软件;

linuxApp

N/A not applicaable;

snapshorts local disk  locate;

Manual live migration of VMs from host to host