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drbd: new configuration parameter c-min-rate
authorLars Ellenberg <lars.ellenberg@linbit.com>
Wed, 11 Aug 2010 21:40:24 +0000 (23:40 +0200)
committerPhilipp Reisner <philipp.reisner@linbit.com>
Thu, 14 Oct 2010 16:38:20 +0000 (18:38 +0200)
We now track the data rate of locally submitted resync related requests,
and can thus detect non-resync activity on the lower level device.

If the current sync rate is above c-min-rate, and the lower level device
appears to be busy, we throttle the resyncer.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

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