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This article presents market segmentation of the leading data center operators and discusses the infrastructural considerations, namely energy consumption, power usage effectiveness, cost structure, and system reliability constraints. Moreover, it presents data center network design, classification of the data center servers, recent developments, and future trends of the data center industry. Furthermore, the emerging paradigm of mobile cloud computing is debated with respect to the research issues. Preliminary results for the energy consumption of task scheduling techniques are also provided.<\/jats:p>","DOI":"10.4018\/ijitwe.2019010103","type":"journal-article","created":{"date-parts":[[2018,10,31]],"date-time":"2018-10-31T20:07:39Z","timestamp":1541016459000},"page":"42-65","source":"Crossref","is-referenced-by-count":39,"title":["A Systems Overview of Commercial Data Centers"],"prefix":"10.4018","volume":"14","author":[{"given":"Sardar Khaliq","family":"Uzaman","sequence":"first","affiliation":[{"name":"Comsats University Islamabad, Abbottabad Campus, Abbottabad, Pakistan"}]},{"given":"Atta ur Rehman","family":"Khan","sequence":"additional","affiliation":[{"name":"Faculty of Computing and Information Technology, Sohar University, Sohar, Oman"}]},{"given":"Junaid","family":"Shuja","sequence":"additional","affiliation":[{"name":"COMSATS Institute of Information Technology, Abbottabad, Pakistan"}]},{"given":"Tahir","family":"Maqsood","sequence":"additional","affiliation":[{"name":"Computer Science Department, COMSATS Institute of Information Technology, Abbottabad, Pakistan"}]},{"given":"Faisal","family":"Rehman","sequence":"additional","affiliation":[{"name":"COMSATS Institute of Information Technology, Abbottabad, Pakistan"}]},{"given":"Saad","family":"Mustafa","sequence":"additional","affiliation":[{"name":"COMSATS Institute of Information Technology, Abbottabad, Pakistan"}]}],"member":"2432","reference":[{"key":"IJITWE.2019010103-0","unstructured":"Khan, A.R., Othman, M. & Khan, A.N. 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