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本帖最后由 360安全卫士 于 2012-10-1 17:39 编辑
上次发过一个月经帖,以个人的角度评价了云计算模式的优势,http://www.hostloc.onozo.cc/thread-148440-1-1.html#pid2221741
但觉得这帖子可能远不够让大家成为云计算fans的动力。毕竟在中国,云计算属于新兴产业,而在其中有不少搅局者把这产业已做成infamous(臭名远扬)了。今天我再用更加白话文地解说一些关于云计算的其它优势。
首先是成本,相信不少朋友都听说过,云计算的性价比比传统IDC交付模式(包含:带宽机柜租用、空间租用、初涉虚拟化的VPS租用)更吸引人。而这其中又有什么奥秘哩?我们来一点一点说起吧。
假设你有一些资料、文件,需要存放到个“安全的地方”,如果在以前:
你可能想到买U盘,但U盘并不够安全,1容易损坏,2容易丢失。如果稍微重要点的文件,你可能想到在多处存放,以防万一。
如果这些文件比较机密,你放的地方越多,机密的保密性有可能受到威胁。
你可能想到专门买一块用来储存这些重要档案的磁盘,或者磁盘组。但是:
你买磁盘时,你将会产生不小的成本
而且你磁盘有“生命期”,就算在生命期内,资料的安全性也无法得到保证。做RAID成本太大
多数时间你磁盘的不少空间都处于闲置状态
开放储存服务,是类于amazon s3(simple storage service)的一项云计算服务。通过封装PUT、GET、DELETE等方法的HTTP接口,用户可以很方便对自己的档案进行上传、下载、删除操作。这项服务是按需付费的,空间是按需付费的(你用多少你只付多少,比如你这个月空间占用1G,你只需每月结算这一G的费用或者按日每日结算一点),流量和请求也是按实际使用付费的。相比购买硬盘、甚于组建磁盘阵列,成本可以大大降低。
当一个做资源站的站长,在为其网站数据的安全性而担忧时,不妨试下云储存服务,既可以缩减运维成本,更方便了日后的运营管理。
闲置资源的回收可利用性,是云计算相比于传统IDC行业,缩减成本并提升服务质量的一大优势。
而在传统IDC行业中这种缩减成本的方式不叫做优势,叫做“操售”
云计算服务(computing service)也是一样的,如果用户是做网站的(或者随便什么服务),在某些特殊的日子(诸如节假日、做营销的日子)里,网站访问量大大增加,按传统模式地IDC提供的方案,肯定无法在以往的配置的基础上满足所有访客的访问。如果要升级配置,需要支付昂贵的带宽费用、硬件升级费用和机房人员收取代维费用,并且网站可能会中止服务。
而云计算,提供的资源是理想化的,是绝对充裕的。你想要的升级配置等等,往往只需一键式地,在无需技术人员干预下,充值后升级,几分钟内就完成。在流量降下来后,又可以恢复到以前的配置。
也就是:云计算,可以让你不为闲置的资源浪费成本。但传统IDC行业很难。
因为:
首先,传统IDC基于资源、技术的限制,提供不了理想化的计算、储存资源池,并且多数IDC规模不大,闲置部分资源的费用若IDC商家承担恐出金融危机。于是或多或少闲置资源均由用户承担成本。
其次,现在多数IDC已在业务中融入了虚拟化技术,但目测都还停留在单机VPS的阶段,也就是母机挂了,小鸡挂一堆的这种模式下,没有容灾、应急策略。就算有母机集群,也多只是小规模。
last,IDC已经在按月支付费用的传统模式中固定死了,他们不愿意打破这个模式,更不愿意为自己降低本来属于自己的收入,更甚之有些IDC商家(不乏国外)责任心淡薄,数据丢失了顶多退款了事。
亲们,为了你WEB项目的安全和稳定,选择云计算服务商时,务必慎重;有语道是“没最好,只有更好”,找到更适合自己业务的云服务商,才能让自己和自己的项目快速成长。
英文版【部分】:- Last time,i post a bad article to evaluate the advantages of the cloud computing based on my personal vision(url:http://www.hostloc.onozo.cc/thread-148440-1-1.html#pid2221741).
- but i think it's not enough to made every body become the fans of cloud computing.as least,it's in P.R.China,the cloud computing is a emerging industry,and there are many showstoppers who made this industry infamous.Today i will explain some other advantages of cloud computing via my own way.
- Firstly,we talk about the cost.i believe there are many people who heard about the cloud computing's cost-effective is more attractive than the traditional Internet DC mode(including: bandwidth cabinet rent,virtual hosting rent, VPS virtualization rent),what's the hell of the secret?
- imagine that,you have some files,archives to store,and store into some a secure place.if in the before,you may:
- wanna buy a u disk,but the u disk is nou security enough,because :1.it always goes broken;2.it is easy to loose.
- and if there is a more secure file,you may store in serveral places to avoid some time the accident.
- if some a file is confidential, the place you stored more,the danger of the confidential is more.
- you may wanna buy a disk to store it,even a disk group(RAID).but:
- the cost is not a few when you got it.
- the disk will got a lifetime,and the fils' secure can not got be guaranteed even not out it.and the Raid cost more.
- much time of you use,the many bytes of the disk is free,and it's cost was paid from you.
- open storage service which similar to the amazon s3 service is a aliyun cloud service , it packs much HTTP method such as PUT/GET/DELETE,and the users may upload/download/delete his/her files via this api.
- the oss is paid as user goes(user has to pay what he used).such as you used one gigabytes on you bucket,you will got a billing of the cost of the 1 GB.The bandwidth and request cost the same way.
- Compares with buy a disk,or RAID,the cost is much less.
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