【速讀摘要】：
在解決IT本地部署各種問題的前行路上，企業和機構可以通過私有云（特別是託管私有云）方案來解決其對性能、成本和安全性的精準需求。
Why it's time for private cloud to replace on-premiseinfrastructure
為什麼說私有云替代本地設施正當其時
Jon Lucas是Hyve Managed Hosting的聯席董事By moving on from the challenges of on-premise, organizationscan build a private cloud solution that blends performance, cost, and securityfor their precise needs
在解決IT本地部署各種問題的前行路上，企業和機構可以通過私有云方案來解決其對性能、成本和安全性的精準需求
由DCD中國授權DKV編譯並發表於DeepKnowledge微信公眾號The momentum away from on-premise infrastructure to placingworkloads in the cloud is well established.
把IT業務負載從本地設施遷移上雲的趨勢已經非常明朗。Indeed, many businesses yet to pursue a cloud strategy do soout of concern that the migration process will be too challenging andcomplicated.
事實上，很多尋求上雲戰略的企業仍在顧慮遷移過程面臨過多挑戰性和複雜性。
But in almost every case those issues need no longer be abarrier, particularly as private cloud services have evolved to offer a growinglist of advantages. But, where do the main challenges lie for users ofon-premise infrastructure, and how can private cloud offer a better option?
基本上這些問題都不再是難題，特別是私有云服務已經逐步完善可以提供越來越多的優勢性能。那麼，仍然依賴本地部署設施的客戶還面臨哪些挑戰？私有云怎樣才能成為一個更好的選擇呢？
Leaving the legacy
棄舊迎新Whether they like it or not, many organizations still relyheavily on legacy IT infrastructure that is hosted on-premise. Some are restrictedby budgets – a problem particularly evident across the public sector - whileothers use bespoke, mission-critical applications often seen as incompatiblewith the cloud. There are also many organizations that persist with oldtechnologies because it hasn't broken - so why fix it?不管喜歡與否，很多企業和機構依然嚴重依賴目前本地部署的IT設施。有些受制於預算有限-特別是在一些公共部門，另外一些則因使用定製和承載關鍵應用，貌似不適用公有云。仍有很多企業和機構堅持用過時的技術，因為並沒有出現故障-那有什麼理由非要解決呢？
Here's one very good example that illustrates the problem withthat approach: in less than two months, Windows 7, still widely used across thepublic and private sector, goes 'end of life'. On January 14th, 2020, Microsoftwill stop providing security updates and support for it, and users will eitherneed to pay for extended support, upgrade to the current version of Windows orkeep using it regardless of the increased security risks it will present in thefuture.
這裡又一個很好的例子說明問題的緊迫：在未來2個月內，在公共和私營企業部門目前仍廣泛使用的Windows 7將"停止更新"。2020年1月14日後，微軟將停止提供安全性更新和技術支持，客戶需要為延長技術支持、升級到現有Windows版本而付費，如果繼續使用將承受日益增長的安全風險。
Clearly, that's not a viable, long-term strategy, and for thatbig example, there are many similar issues out there on a smaller, but not lessimportant scale. For industries such as finance or government, moving toprivate cloud, where the solution is solely dedicated to the needs of anindividual client or organization, delivers the most up-to-date hardware,software, and services, removing the legacy burden and allowing users tobenefit from the latest product features and performance improvements.
很顯然，這不是可行的長遠之計，除了上面Windows 7的例子，仍有很多稍小但同樣緊要的問題廣泛存在。對金融業或政府部門而言，遷移到私有云上可以滿足個體客戶或機構的特定需求，並提供最新的軟硬件和服務，解除舊有負擔，並讓用戶從最新的產品功能和性能改進中受益。
Build better security
建立更好的安全防範
Even when the age of technology isn't a factor, investing inon-premise infrastructure where applications and data are located on-sitepresents a range of security risks. The costs of managing on-premise physicalsecurity to a high standard can create a significant financial burden. Incontrast, good private cloud providers will ensure all locations are Tier 3enhanced and ISO 27001:2013 certified. Their physical security measures, suchas 24/7 CCTV, biometric scanners, card readers and video monitors often exceedthose seen in on-premise facilities.
即便技術的應用年限不是其中一個因素，僅在運行應用和存儲數據的本地設施側投資也意味著一系列安全風險。管理從本地物理安全升級到更高安全標準在費用上也將成為可觀的財務負擔。對比之下，好的私有云提供商將確保各託管場所達到Tier 3增強級和ISO27001:2013認證水平。私有云提供商的物理安全措施如24/7 CCTV、指紋/面部生物識別儀器、讀卡機和視頻監控器等設施都將優於本地部署。
Similarly, if backups are only stored in the same building asphysi cal infrastructure, catastrophic data loss is always a remote possibilityin the event of a serious fire, for example. Migrating to the cloud allowsoffsite backups to be sent to another data center – reducing the possibility ofserious downtime.同理，如果備份只保存在同一棟建築中以物理設施形式完成，災難級數據丟失在類似嚴重火災情況下就像達摩力克之劍。遷移上雲可以實現災備傳送到異地其他數據中心，從而降低了嚴重宕機的可能性。
Improve cost-efficiency
提高成本效益
Purchasing and maintaining software, hardware, servers, andother IT equipment via capital expenditure can be costly, with a high initialinvestment required build on-premise infrastructure. Along with the cost ofequipment, on-premise hosting requires space, electricity, cooling, networking,and physical security. In addition, there's also the cost of employing theskilled technicians needed to build and maintain on-prem infrastructure.
購買和維護軟硬件、服務器和其他IT設施的資本開支不菲，而投資建設本地設施需要高額的初始投資。除設備成本外、本地託管還需要場地、電力、製冷和物理安全。此外，招聘技能熟練的本地設施建造和運維技術人員也需要資金投入。
Taking the private cloud option is appealing to manyorganizations who don't want the financial burden. A managed private cloudsolution can help to decrease that initial capital investment (Capex) and anyongoing operational expenses (Opex) by passing on the responsibility ofcreating or maintaining infrastructure to the service provider.
選用私有云對很多顧慮財務負擔的企業和機構非常具有吸引力。託管私有云方式可以把設施建設和運維交由服務提供商，以降低初始資本投入Capex和很多後繼的運營成本Opex。
Maximize performance
性能最大化
Migrating to private cloud makes it easier for businesses toenhance application performance, reduce downtime and scale computing resources.Organizations running their own hardware on-site run the repeated risk ofbuying equipment that isn't right for their needs or doesn't work well withtheir applications. In those circumstances, problems have to be diagnosed andrectified in-house, or at greater expense, with the help of outside expertise.
遷移到私有云讓企業提升應用性能、降低宕機時間和彈性控制計算資源變得容易。企業和機構在本地硬件投資上可能會盲目購入並非真正所需或與應用匹配的設備。這原有模式下，故障必須要自己定位和排除，或者多花錢請外部專業人士協助。
Private cloud migration, however, presents a good opportunityto streamline systems, build a better architecture and load balanceapplications. However, organizations considering their options for privatecloud should look for a partner that can provide a dedicated team of experts, abespoke migrations plan made up of informed recommendations that will deliverthe optimum performance for the entire organization.
與此同時，向私有云遷移為精簡系統提供了一個良機，可以順勢搭建更好的架構和優化負載均衡應用程序。不過，考慮採用私有云的企業和機構應該尋求可靠的合作方，由專家組參與並根據評審後的建議方案量身定製遷移計劃，從而為整個組織實現性能優化。
By moving on from the challenges of on-premise infrastructurestrategy and risky legacy hardware, organizations can build a private cloudsolution that blends performance, cost, and security for their precise needs.In doing so, they can arrive at a win-win situation where they have the dedicatedresources that were always the hallmark of on-prem, to a solution that deliversthe ongoing flexibility and power of the private cloud.
在解決IT本地部署各種問題的前行路上，企業和機構可以通過私有云方案來解決其對性能、成本和安全性的精準需求。在實現過程中，企業和機構可以實現雙贏的結果，在具備與本地部署同樣專屬資源的同時，升級為今後可以提供靈活性和功能的私有云方案。
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