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A comment on Why are my ZFS disks so noisy?. Parent comment

Re:Why are my ZFS disks so noisy? by toast0 on Friday September 27, 2024 @02:30AM (#41666976)
If you've got enough ram, you might be able to tune prefetching to prefetch the whole file? Although, I'm not sure how tunable that actually is.
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Re:Why are my ZFS disks so noisy? by iforgotpassword on Friday September 27, 2024 @02:58AM (#41667166)
Yes, I think nowadays you do this with

  blockdev --setra <num_sectors> /dev/sdX
But I feel like there was a sysctl for this too in the past. I used it back in the day to make the HDD in my laptop spin down immediately after a new song started playing in rhythmbox by setting it to 16MB.
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