Recently I assembled a server with several 2Tb disks in Linux RAID. RAID resync reported by cat /proc/mdstat showed that resync will take about 9 hours! More than my working day! I started to look for a way to increase resync speed.
Dec 27 2009
I’ve gotten cron log from one of my servers today which says:
/etc/cron.weekly/99-raid-check: WARNING: mismatch_cnt is not 0 on /dev/md0
That worried me a little and I decided to investigate.