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--- mdadm_raid_1_replace_disk [2015/05/14 08:34] – [mdadm - replace failed RAID1 disk] admin
+++ mdadm_raid_1_replace_disk [2015/05/14 08:36] – [Speed up rebuild] admin
@@ Line 57: / Line 57: @@
   * Show current min/max limit:<code>sysctl dev.raid.speed_limit_min
 sysctl dev.raid.speed_limit_max</code>
-  * Increase speed:<code>sysctl -w dev.raid.speed_limit_min=value</code>
+  * Increase speed:<code>sysctl -w dev.raid.speed_limit_min=500000</code>
-  * Set read-ahead:<code>blockdev --setra 65536 /dev/md125
-blockdev --setra 65536 /dev/md126
-blockdev --setra 65536 /dev/md127</code>