11 lines
641 B
Plaintext
11 lines
641 B
Plaintext
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# set noop scheduler for non-rotating disks (SSD)
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# the glob matches sd* on physical hosts, xvd* on Xen hosts, and vd* on KVM hosts
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ACTION=="add|change", KERNEL=="xvd[a-z]|[sv]d[a-z]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="noop"
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# set deadline scheduler for rotating disks
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# the glob matches sd* on physical hosts, xvd* on Xen hosts, and vd* on KVM hosts
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#
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# newer KVM guests (Ubuntu 14.04 at least, so Linux >=3.13) using virtio vda don't
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# allow it to be set, but it's non fatal so let's just set it for now
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ACTION=="add|change", KERNEL=="xvd[a-z]|[sv]d[a-z]", ATTR{queue/rotational}=="1", ATTR{queue/scheduler}="deadline"
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