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For the tenth straight year, IBM and Lenovo servers again achieved top rankings in ITIC’s 2017 – 2018 Global Server Hardware and Server OS Reliability survey.

 IBM’s Z Systems Enterprise server is in a class of its own. The IBM mainframe continues to exhibit peerless reliability besting all competitors. The Z recorded less than 10 seconds of unplanned per server downtime each month. Additionally less than one-half of one percent of all IBM Z customers reported unplanned outages that totaled greater than four (4) hours of system downtime in a single year.

Among mainstream servers, IBM Power Systems 7 and 8 and the Lenovo x86 X6 mission critical hardware consistently deliver the highest levels of reliability/uptime among 14 server hardware and 11 different mainstream server hardware virtualization platforms. Each platform averaged just 2.1 minutes of unplanned per annum/per server downtime (See Exhibit 1). 

That makes the IBM Power Systems and Lenovo x 86 servers approximately 17 to 18 times more stable and available, than the least reliable distributions – the rival Oracle and HPE ProLiant servers.

 Additionally, the latest ITIC survey results indicate just one percent of IBM Power Systems and Lenovo System x servers experienced over four (4) hours of unplanned annual downtime. This is the best showing among the 14 different server platforms surveyed.

ITIC’s 10th annual independent ITIC 2017 – 2018 Global Server Hardware and Server OS Reliability survey polled 800 organizations worldwide from August through December 2017.  In order to obtain the most accurate and unbiased results, ITIC accepted no vendor sponsorship.

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