Citistore Accelerates SAP Modernization with Linux on IBM Power9

Company Profile
Since their founding in 1989, Citistore has grown to become Hong Kong’s leading department store, and was successful in delivering the right products consumers want at the right price. The company’s SAP ERP system was instrumental in achieving this by streamlining its operations and providing valuable data for decision making. In 2018, Citistore’s parent company Henderson Investment Limited (Henderson Investment) acquired the Hong Kong operations of UNY, a Japan’s leading supermarket operator, further expanding its market reach and share.


Business Benefits

IBM Power9 speeded up deployment, which included the operating system, SAP HANA in-memory database, Linux Cluster configuration and testing. The platform’s quick provisioning feature, which made provisioning 20x faster than x86, meant that the entire project met Citistore’s tight project schedules.

In addition, Linux on Power9 provided Citistore the lowest five-year total cost of ownership by using fewer servers and offering them over double the throughput per core. It used less physical space, reduced energy usage, cut down networking needs, and simplified management.

The Needs

With Henderson Investment’s acquisition of UNY’s Hong Kong operations, the group had two separate and different ERP systems to manage, making IT management complex and decision-making slow. So, the project team looked to integrate both ERP systems. It also needed to upgrade its current ERP to SAP S/4HANA as the current version will not be supported soon. In addition, SAP S/4HANA required Citistore to migrate its platform to Linux.

The Solution

IBM and Citistore ran a three-year project, which was divided into two related phases, to address these challenges. In phase one, UNY's ERP system was built on SAP S/4HANA, running on IBM Power9 on Linux. Phase two will see Citistore’s SAP ERP system upgraded to SAP S/4HANA. The entire project involved four Power9 L922, each including a V5030 Storage System, SAN switches, and a tape library.

Having the right application is only half the solution. It needs the right platform for it to deliver on its promises. It is why IBM’s Linux on Power was a crucial decision for us. It marries the open architecture of Linux with a processing architecture whose reliability we have experienced for more than a decade. ”

Joseph Ng Wai Hang, MIS Manager, Citistore (Hong Kong) Limited 

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