Details
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Bug
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Resolution: Done
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Major - P3
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None
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Description
As can be seen here: http://docs.mongodb.org/ecosystem/tutorial/automate-deployment-with-cloudformation/
"## Set read-ahead on each device\n",
"blockdev --setra 128 /dev/md0\n",
"blockdev --setra 128 /dev/sdh1\n",
"blockdev --setra 128 /dev/sdh2\n",
"blockdev --setra 128 /dev/sdh3\n",
"blockdev --setra 128 /dev/sdh4\n",
The read ahead section is setting all the values to 128, when our actual recommendation is 32.