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Will overloaded discs impact iSeries performance?

Ken Graap EXPERT RESPONSE FROM: Ken Graap

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QUESTION POSED ON: 26 March 2009
I have an i550 V5R4, a 17-disk 70Go (two RAID5 set) with two Raid controllers, a 2780 and 573D, and a three disk 282Go with 2780 (shared with 9/17 disk 70Go) as RAID controller (one Raid-5 set). All of these disks are in one system, ASP. Will this configuration impact the performance of my system? If yes, what is the solution?


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It all depends!

Without knowing what kind of workload you are carrying on your server, it is impossible to determine if this disk configuration will impact overall performance.

I would suggest that you use the iSeries performance tools to collect data during a busy part of the day and then analyze this data to see if your disk performance is impacting overall system performance.




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