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07-25-2013 01:44 AM
07-25-2013 01:44 AM
Is there any Tool to Size an MSA240 for given IOPS?
Solved! Go to Solution.
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07-25-2013 02:21 AM
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07-25-2013 02:38 AM
07-25-2013 02:38 AM
Re: How to Size MSA2040 for IOPS?
But it's OK.
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07-23-2014 10:09 AM
07-23-2014 10:09 AM
Re: How to Size MSA2040 for IOPS?
I've got an MSA2040 and tons of drives for it. My quick and dirty analysis yields the following:
This is based on a composite average of different block sizes and queue depths with a pretty typical 60/40 r/w blend. The controllers are great in performance but they do hit a wall with certain configs.
I never miss targets when I size this way:
IOPS per drive pair - RAID 1+0 (these are pairs cuz it's RAID 10)
SSD = 8050
15K = 335.4
10K = 223.5
7.2K = 149
IOPS per drive - RAID 5 (add 1 to total needed cuz it's RAID 5, minimum 3)
SSD = 2430
15K = 96.6
10K = 64.3
7.2K = 43
IOPS per drive - RAID 6 (add 2 to total needed cuz it's RAID 6, minimum 4)
SSD = 2317
15K = 87.5
10K = 58.2
7.2K = 38.9
Enjoy!