On 01/31/2018 03:51 PM, Peter Becker wrote:

A little question about mount -o read_mirror_policy=<devid>.

How would this work with RAID1 over 3 or 4 HDD's?
In particular, if the desired block is not available on device <devid>.

 When a stripe is not present on the read optimized disk it will just
 use the lower devid disk containing the stripe (instead of failing back
 to the pid based random disk).

Could i repeat this option like the device-option to specify a
order/priority like this:

mount -o read_mirror_policy= 1,read_mirror_policy= 3

 Yes.

Thanks, Anand
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