RA­JEEV BA­TRA

CIO, MTS In­dia

InformationWeek - - Cover Story -

Within MTS, stor­age is an ex­tremely im­por­tant com­po­nent of the IT in­fra­struc­ture. This is so be­cause apart from the en­ter­prise data be­ing gen­er­ated on a reg­u­lar ba­sis within the day-to-day of­fice en­vi­ron­ment, a large size of data is be­ing churned out ev­ery day in the form of Call Data Records and the data us­age records of the mil­lions of MTS cus­tomers spread across the coun­try.

An­nu­ally, ap­prox­i­mately 700 ter­abytes of data is gen­er­ated within MTS and this is dis­tinct from the data that is stored on the net­work. Out of the to­tal data gen­er­ated an­nu­ally, 80 per­cent of the data stream comes from the cus­tomers, while 20 per­cent is gen­er­ated in­ter­nally via in­tra-of­fice com­mu­ni­ca­tions.

Be­ing in the tele­com in­dus­try ver­ti­cal, we need to store data for var­i­ous pur­poses rang­ing from op­er­a­tional needs, an­a­lyt­ics prac­tices and reg­u­la­tory re­quire­ments.

Within MTS, we use SSDs, which can deliver high IOPS (In­put/Out­put Op­er­a­tions Per Sec­ond) to host apps that re­quire in­stant grat­i­fi­ca­tion and quick turn­around-time, such as an­a­lyt­i­cal data­bases, reporting and MIS, data min­ing apps, and cus­tomer-fac­ing apps. The next level of stor­age is SAS, which stores data that is ac­tively ac­cessed by users for say a pe­riod of two months. Once data is more than two months old, the data goes into SATA drives, while six months to one year old data goes into tape stor­age. Data that is older than one year is gen­er­ally moved into tape stor­age for archival pur­pose.

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