xSeries--Linux-Installation-Performance-Optimization-(000-676).pdf - IBM 000-676 xSeries Linux Installation\/Performance Optimization

XSeries--Linux-Installation-Performance-Optimization-(000-676).pdf

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000-676 IBM xSeries - Linux Installation/Performance Optimization
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QUESTION:63 Which two (2) of the following criteria would be used to determine the best RAID strategy for a new server? A. SCSI bus speed B. Speed of the drives C. Level of fault tolerance required D. Cost versus performance considerations Answer:C, D QUESTION:64 Users are complaining that the response to database queries takes too long. Performance monitoring has identified the disk subsystem as the bottleneck. The disk subsystem is configured with these settings: # of drives in the array 14 RAID level RAID-5 Disk stripe size 8 KB Controller stripe size 8 KB (default) Average data transfer size 16 KB (observed) Write-cache mode Write back (default) What change to the server's configuration would provide the best performance improvement?
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