Waxay u badan tahay inaad hore u ogeyd farqiga u dhexeeya daruuraha dadweynaha^(Public) iyo daruuraha gaarka^(Private) ah. Waxa kale oo jira hal daruur Hybrid ah^{(Hybrid cloud )} . Maqaalku wuxuu si degdeg ah u eegayaa qeexitaannada iyo kala duwanaanshaha ka hor intaanay noocyadan xisaabinta daruuraha^{(cloud computing)}  sii socon si loo sharaxo nooca daruuraha kuugu habboon adiga iyo ururkaaga.

^{(Public Cloud)}Farqiga Cloud Cloud vs Private Cloud

Daruur dadweyne asal ahaan waa adeeg ay bixiso cid saddexaad. Waxay kaydin kartaa shirkado kala duwan isku mar iyo isla server isku mid ah. Waxaa isticmaali kara barnaamij-sameeyayaal shirkado kala duwan si ay u dhisaan oo u fuliyaan xeerkooda isku mar, iyada oo aan la faragelinayn hawlaha midba midka kale. Isku soo wada duuboo, daruuraha dadwaynaha ayaa u furan dhammaan macaamiisha waxaana isku mar geli kara macaamiil kala duwan. Adeegga isku midka ah wuxuu u adeegi karaa macaamiil kala duwan wuxuuna noqon karaa xogta guryaha ee macaamiisha kala duwan.

Marka laga hadlayo daruuraha gaarka ah, waxaa jira adeegayaal u go'ay. Seerfaradaasi waxay ka kooban yihiin xog urur keliya. Waxay bixisaa madal ay kula shaqeeyaan dadka ururka, taas oo loo dhisay.

Deegaanka daruuraha guud, waa la bixiyaa markaad xaalad ku socoto. Macaamiishu waxay bixinayaan kaliya qaybta iyo adeegyada daruuraha ee ay isticmaalayaan. Uma baahna inay ka welwelaan qaybaha kale, ee aan la heli karin ee daruuraha dadweynaha maadaama aysan xiriir la lahayn iyaga ama ururkooda. Daruur gaar ah, maamulayaashu waa inay daryeeshaan dhammaan daruuraha. Waa inay u arkaan in habayntu runtii buuxinayso shuruudaha lagama maarmaanka u ah in loogu yeedho daruur. Markaa, kharashyadu way ka sarreeyaan qaabka daruuriga gaarka ah maadaama shirkadu ay tahay inay soo iibsato dhammaan server-yada loo baahan yahay oo ay bixiso shaqaalaha gacanta ku haya daruuraha.

^(Public)Daruur ^{(Private Cloud – Which)}dadweyne ama mid gaar ah - kee fiican?

In kasta oo ay badankoodu ku doodi karaan inay ku salaysan tahay miisaaniyadaada, waxaan odhan lahaa miisaaniyada waa in loo qoondeeyaa iyadoo lagu salaynayo nooca ganacsiga aad qabanayso. Dabcan, haddii miisaaniyadaadu aanay weynayn oo aadan awoodin inaad kaydiso dhammaan xogtaada, waxaad yeelan kartaa daruur badheed-gaar ah, taas oo ah, daruurta isku-dhafka ah. Laakiin dhab ahaantii waxay kuxirantahay waxaad rabto inaad sameyso.

Xogta waxaa loo kala saari karaa qaybo kala duwan. Ganacsiyada kala duwan waxay leeyihiin noocyo kala duwan oo xog ah oo loo kala saari karo inay yihiin kuwo xasaasi u ah xasaasiga yar. Haddii ganacsigaagu uu la macaamilo xogta nooca aadka u xasaasiga ah - tusaale ahaan, macluumaadka kaadhka deynta ee macaamiisha, iwm., waa inaad haysataa daruur maxalli ah iyadoon loo eegin miisaaniyada maadaama daruuraha dadwaynaha ay aad ugu nugul yihiin isku dayga jabsiga marka loo eego daruuraha gaarka ah.

Taasi waxay tidhi, xogta ururadan oo kale waxaa sidoo kale lagu kaydin karaa qayb ka mid ah server-yada maxalliga ah iyo qayb ka mid ah daruuraha dadweynaha. Qaybta xasaasiga ah ee xogta waxay aadaysaa daruuraha dadweynaha si ay u badbaadiso server-ka iyo kharashka dayactirka halka qaybta ugu xasaasisan ay aado daruuraha maxalliga ah. Qalabaynta noocan oo kale ah ayaa sida caadiga ah loo yaqaan daruur isku-dhafan - iyadoo la siinayo in shirkaddu isticmaasho algorithm-yada isku xira daruuraha dadweynaha ee daruuraha gaarka ah iyo liddi ku ah - dabcan, iyada oo taxadar badan si loo sameeyo xogta si ammaan ah iyadoo la adeegsanayo hababka sida laba-tallaabo xaqiijinta iyo sirta, iwm.

Ka hadalka qarsoodiga, inta badan daruuraha dadwaynaha ma bixiyaan nidaam sireed wanaagsan. Xogtu waxa laga yaabaa in la sir gareeyo marka ay gaadho server-ka laakiin dariiqa kombiyuutarada ururka ilaa daruuraha dadweynaha lama qarin karo. Dheeraad ah, hababka sirta ah ee daruuraha dadweynaha maaha kuwo aad u fiican sida caddaynta maqaallo kala duwan oo aan ka akhriyey mawduuca. Xaaladahan oo kale sidoo kale, daruur gaar ah ama isku-dhafan ayaa ah ikhtiyaarka ugu fiican. Dhanka kale, haddii aad diyaar u tahay inaad halis gasho xoogaa xogtuna ma ahan mid xasaasi ah, waxaad sir kartaa xogta adigoo isticmaalaya mid ka mid ah farsamooyinka badan (ama software sirta ah ee la heli karo) ka hor intaadan u wareejin daruuraha.

Miisaaniyadu^(Budget) sidoo kale waa caqabad laakiin sidaan hore u sheegay, xasaasiga xogtu waa inay kaa caawisaa go'aan ka gaadhista inaad aado daruur dadweyne ama mid gaar ah. Isku-dhafka ayaa ah kuwa ugu wanaagsan labada adduunba maadaama aad wax yar ka bixin karto xogta xasaasiga ah ee yar oo aad adeegsato server-ka (daruur gaar ah) xogta xasaasiga ah.

Nooca ganacsiga ee daruurtu sidoo kale waa arrin lagu go'aamiyo nooca daruuraha ee la dooranayo. Haddii aad u baahan tahay madal aad ku abuurto oo aad tijaabiso abka, waxa jira daruuro dhawr ah oo bixiya hawshan oo kale. Sidoo kale^(Likewise) , haddii aad u baahan tahay kaabayaal ganacsi oo aadan rabin inaad wax badan geliso, waxaad aadi kartaa Kaabayaasha^{(Infrastructure)} sida daruuraha nooca Adeegga ah. ^(Service)Haddii meheraddaadu aanay haysan wax badan oo uu kaydiyo oo aad ugu janjeerto hawlaha guud, waxa laga yaabaa inaad doorato daruur dadweyne maadaama ay wax badan badbaadinayso mustaqbalka fog. Daruur go'an, dhinaca kale, way adkaan doontaa in la dejiyo iyo sidoo kale in la caddeeyo inay qaali tahay isla wakhtigaas.

Fikir yar waa inuu galaa xeeladda daruuriga ah ee aad horumarin doonto waana inay ku daraan kuwa soo socda:

1. Waa maxay baahida daruurtu?
2. Adeeg noocee ah ayuu ururkaagu damacsan yahay (tani waxay yeelan kartaa doorashooyin badan sida kaydinta, abuurista software, tijaabinta, bixinta adeegyada khadka, iwm)
3. Wadarta qiimaha isticmaalka daruur gaar ah vs wadarta^(Total) qiimaha isticmaalka daruuraha guud
4. Sidee kharashka loo dhimi karaa si loo bixiyo ilaalin wanaagsan xogta iyadoo la bixinayo adeegyo wanaagsan iyadoo loo wakiishay hababka qaarkood daruuraha dadweynaha haddii ay suurtagal tahay

Waxaan hubaa in marar badan, jawaabaha ay eber yeelanayaan in la haysto daruur yar balse u go'an iyo sidoo kale isticmaalka daruuraha guud ee hawlgallada intiisa badan. Taasi waa, inta badan, jawaabtu waxay noqon kartaa isticmaalka daruuraha guud iyo kuwa gaarka ah labadaba taas oo loo yaqaan daruur isku-dhafan. Si kastaba ha ahaatee, tani mar kale waxay ku xiran tahay oo kaliya nooca ganacsigaaga sababtoo ah miisaaniyada waa in loo habeeyaa sida shuruudaha^{(budget has to be arranged as per the requirements)} .

Midkee baad jeclaan lahayd inaad akhrido kuwan xiga?^{(Which one of these would you like to read next?)}

1. Noocyada adeegyada Cloud & Microsoft Cloud
2. Mustaqbalka Xisaabinta Cloud
3. Arrimaha amniga ee Cloud computing
4. Farqiga u dhexeeya xisaabinta Cloud iyo Grid computing^{(Difference between Cloud computing and Grid computing)} .

Public Cloud vs Private Cloud: Definition and difference

You рrobably already know the differenсe between Publiс clouds and Private clouds. There is one Hybrid cloud too. The article takes a quick look at the definitions and differences before these types of cloud computing going on to explain what kind of cloud is best suited for you and your organization.

Public Cloud vs Private Cloud difference

A public cloud is basically a service offered by a third party. It can host storage for different companies at the same time and on the same server. It can be used by programmers of different companies to build and execute their code at the same time, without interfering with each other’s activities. In a nutshell, the public cloud is open to all subscribers and can be accessed by different customers at the same time. The same server can be catering to different customers and can be housing data of different customers.

In the case of private clouds, there are dedicated servers. These servers contain data from a single organization. It offers a platform for working with people of the organization for which, it was built.

In a public cloud environment, it is paid as you go situation. Clients pay for only the portion and services of the cloud which they are using. They need not worry about other, inaccessible portions of the public cloud as they are not related to them or their organization. In a private cloud, the admins have to take care of the entire cloud. They should see to it that the setup is indeed meeting the requirements essential for it to be termed cloud. Thus, costs are higher in the private cloud model as the company has to buy all the servers required and pay the staff handling the cloud.

Public or Private Cloud – Which is better?

Though most would argue it is based on your budget, I would say the budget has to be allotted based on the type of business you are doing. Of course, if your budget is not big and you cannot afford a premise cloud to store all of your data, you can have a semi-private cloud, that is, the hybrid cloud. But it essentially depends on what you wish to do.

Data can be categorized into different categories. Different businesses have different types of data that can be categorized as being very sensitive to less sensitive. If your business deals with data of very sensitive type – for example, the clients’ credit card information, etc., you have to have a local cloud irrespective of the budget as public clouds are more prone to hack attempts as compared to private clouds.

That said, data of such organizations can also be stored part on local servers and part on public cloud. The less sensitive part of the data goes to the public cloud to save on server and maintenance costs while the most sensitive part goes to the local cloud. Such a setup is normally called a hybrid cloud – given that the company uses algorithms that link the public cloud to the private cloud and vice versa – of course, with ample precautions to make the data secure using methods like two-step authentication and encryption, etc.

Talking of encryption, most public clouds do not provide a good encryption system. Data may be encrypted once it reaches the server but the path from organization computers to the public cloud may not be encrypted. Further, the encryption methods on public clouds are not pretty good as evident from different articles I read on the topic. In such cases too, a private or a hybrid cloud is the best option. On the other hand, if you are willing to risk somewhat and the data is not pretty sensitive, you can encrypt the data using one of the many techniques (or encryption software available) before transferring it to the cloud.

Budget is also a constraint but as I said earlier, the sensitivity of data should aid you in deciding whether to go for public or private cloud. Hybrids are the best of both worlds as you can pay less for less sensitive data and use dedicated servers (private cloud) for sensitive data.

The type of business with the cloud is also a factor in determining what type of cloud to choose. If you need a platform to create and test apps, there are several clouds offering such functionality. Likewise, if you need infrastructure for your business and do not wish to invest much into it, you can go for Infrastructure as a Service type clouds. If your business has nothing much to store and is more inclined towards general operations, you might opt for a public cloud as it will save a lot in the long run. Dedicated cloud, on the other hand, will be difficult to set up as well as proving to be costly at the same time.

A little thought has to go into the cloud strategy you will develop and it should incorporate the following:

1. What is the need for the cloud?
2. What kind of usage does your organization intend (this can have multiple options like storage, software creation, testing, providing online services, etc)
3. The total cost of using a private cloud vs Total cost of using public cloud
4. How can the cost be cut down to offer better protection to data while providing good services by delegating certain processes to the public cloud if possible

I am sure that in many cases, the answers would zero in to having a small but dedicated on-premise cloud as well as using public cloud for the majority of operations. That is, in most cases, the answer could be the usage of both public and private cloud which is called a hybrid cloud. However, this again depends solely on the nature of your business as the budget has to be arranged as per the requirements.

Which one of these would you like to read next?

1. Types of Cloud services & Microsoft Cloud
2. The Future Of Cloud Computing
3. Security issues with Cloud computing
4. Difference between Cloud computing and Grid computing.

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