In the 1 GB file in 1 MB chunk example above, once the first megabyte chunk is read, readahead will predictively fetch the second, third, and so on chunks before the user/application requests the data...In the 1 GB file in 1 MB chunk example above, once the first megabyte chunk is read, readahead will predictively fetch the second, third, and so on chunks before the user/application requests the data to improve read performance Example: The sum of all the volumes in the aggregate (under 2,000) do not total the 5,000 aggregate IOPS in AIQUM in the screenshot below
